Want To Be An Ophthalmologist? Take This Quiz!
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If there is a suspected problem. when should a baby's first eye exam be done?
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6 months or earlier
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3 years
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1st grade
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An ophthalmologist is a medical or osteopathic doctor who specializes in eye and vision care. Ophthalmologists differ from optometrists and opticians in their levels of training and in what they can diagnose and treat.
Want to be an Ophthalmologist? Take this quiz!
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- 2.
Which of the following age ranges is the ONLY age range in which its ok for a patient to go 3 years without an eye exam (according to the lectures)
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3-5 YOA
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6-18 YOA
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40-60 YOA
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18-40 YOA
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6 months old or younger
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61 YOA or older
Correct Answer
A. 18-40 YOAExplanation
According to the lectures, the only age range in which it is okay for a patient to go 3 years without an eye exam is 18-40 years old.Rate this question:
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- 3.
True or false? there is a higher insurance reimbursement for including dilation as part of an eye wellness examination
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True
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False
Correct Answer
A. FalseExplanation
you get paid for it regardless of if it is done or not. the reimbursement amount does not change.
however, it is best practice to complete a dilated fundus exam for quality patient careRate this question:
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- 4.
Regarding the eye wellness examination @ Ketchum health your very first patient, here for a new eye wellness examination is following you down the hall. during the trek to the exam room, you completed autorefractometry/keratometry. in the exam room, you completed a thoroughly detailed history of the patient (PMH, POH, meds, allergies, etc.). after your completed refraction, you find that the patient would benefit from spectacles for both far and near. Goldmann applanation tonometry was 15/16mmHg. the patient then consented to dilation. once dilated, you proceed to find that this patient has unremarkable eyes. you hand over the new prescription and send the patient to optical to pick out some shiny new frames assuming that everything mentioned was documented correctly... does it meet the minimum requirements for Ketchum health
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NOOOOOO!
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YUSSSSS!!
Correct Answer
A. NOOOOOO!Explanation
this exam would be unacceptable; NO preliminary/entrance tests were completed. entrance testing consists of EOMS, NPC, CVF, pupils BP/HR, Cover test etc.
an AR/AK does not count as entrance testing (even though it was done at the beginning)Rate this question:
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- 5.
In general, what is the percentage of the fundus we can see with DO
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50-70%
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15-20%
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10%
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80-90%
Correct Answer
A. 50-70%Explanation
The correct answer is 50-70%. This means that when using direct ophthalmoscopy (DO), we are able to visualize approximately 50-70% of the fundus. Direct ophthalmoscopy involves using a handheld instrument called an ophthalmoscope to examine the back of the eye, including the retina, optic nerve, and blood vessels. While DO provides a limited view compared to other imaging techniques, it is still a valuable tool for assessing the health of the eye and detecting certain eye conditions.Rate this question:
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- 6.
According to the lecture material, the focal point of a 90D condensing lens is approximately
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8mm
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14mm
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12mm
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10mm
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0.8mm
Correct Answer
A. 8mmExplanation
however, when you do math it should be around 11mm 1/90=0.011Rate this question:
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- 7.
Approximately how much power should you dial into the DO to start evaluating the eyelids
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+20.0D
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+17.0D
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+30.00D
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-20.0D
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-23.00D
Correct Answer
A. +20.0DExplanation
To start evaluating the eyelids, approximately +20.0D of power should be dialed into the DO.Rate this question:
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- 8.
You are evaluating the anterior segment with your DO, starting at the lids and lashes (assuming it is clear), in order to visualize the cornea/conjunctiva --> iris --> lens --> vitreous --> retina, how would you adjust your DO compensating lenses
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Decrease plus
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Decrease minus
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Increase plus
Correct Answer
A. Decrease plusExplanation
When evaluating the anterior segment, the DO uses compensating lenses to adjust the focus and clarity of the different structures. Since the DO is starting at the lids and lashes and moving towards the retina, decreasing the plus power of the compensating lenses would be the appropriate adjustment. Decreasing the plus power helps to bring the focal point closer to the DO, allowing for a clearer visualization of the cornea, conjunctiva, iris, lens, vitreous, and retina.Rate this question:
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- 9.
Jim is evaluating his patient's right eye for a PSC. Jim knows from the patient's record that he has a large central opacity which was last examined 1 week ago (he knows it's there). he has dialed in +3.00 into the DO, he is 1-2cm from the patient's eye, and moving around to examine all quadrants but he is failing to see anything. what is Jim doing wrong
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Jim is way too close
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Jim is way too far away
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He has dialed up too much power
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Jim hasn't dialed in enough power
Correct Answer
A. Jim is way too closeExplanation
to examine the lens you would need to dial in ~+3.00D in compensation lenses and stand around arms length away.Rate this question:
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- 10.
The appearance of this ONH is likely due to which of the following
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Idiopathic intracranial hypertension
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Tilted disc
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High myopia
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ONH drusen
Correct Answer
A. Idiopathic intracranial hypertensionExplanation
ill try not to focus on disease in this one (even though most of the lectures a HEAVILY disease based) but what im trying to convey is that pathologic causes of indistinct ONH margins look feathery. compared to non pathologic indistinct margins.Rate this question:
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- 11.
The indistinct appearance of this ONH is due to
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Degeneration of the short posterior ciliary artery
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Degeneration of the long posterior ciliary artery
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Degeneration of the anterior ciliary artery
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Degeneration of the central retinal artery
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Degeneration of the central retinal vein
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Degeneration of the choriocapillaris
Correct Answer
A. Degeneration of the short posterior ciliary arteryExplanation
The indistinct appearance of the optic nerve head (ONH) is likely due to the degeneration of the short posterior ciliary artery. The ONH is supplied by the ciliary arteries, which provide the necessary blood flow to the optic nerve. When the short posterior ciliary artery degenerates, it can lead to a decrease in blood flow to the ONH, resulting in an indistinct appearance. This can affect the visual function and potentially lead to vision problems.Rate this question:
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- 12.
Which of the following characteristics would you NOT expect to find associated with ONH pallor
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Reduced BVCA
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APD
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VF defect
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Color desaturation
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Compromised circulation
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Ptosis
Correct Answer
A. PtosisExplanation
ONH pallor refers to the pale appearance of the optic nerve head, which can be indicative of optic nerve damage. Ptosis, or drooping of the eyelid, is not typically associated with ONH pallor. The other characteristics listed, such as reduced BVCA (best visual corrected acuity), APD (afferent pupillary defect), VF (visual field) defect, color desaturation, and compromised circulation, are all commonly associated with ONH pallor.Rate this question:
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- 13.
In this fundus photo, which of the following would best describe the eye and the appearance
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OS ONH notch @ 6:00
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OD ONH notch @ 6:00
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OS ONH notch @ 3:00
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OD ONH notch @ 3:00
Correct Answer
A. OS ONH notch @ 6:00Explanation
The correct answer is OS ONH notch @ 6:00. This means that in the fundus photo, the left eye (OS) has an optic nerve head (ONH) notch located at the 6 o'clock position.Rate this question:
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- 14.
When evaluating the c/d of a patient with an obliquely inserted ONH, what would you use to judge the c/d ratio
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The vertical limits
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The horizontal limits
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The inferior and superior apexes of the "kidney bean" shape
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Just call itg glaucoma and send them on their way
Correct Answer
A. The vertical limitsExplanation
To judge the c/d (cup-to-disc) ratio of a patient with an obliquely inserted optic nerve head (ONH), one would use the vertical limits. The vertical limits refer to the upper and lower boundaries of the cup, which can be assessed by comparing the height of the cup to the height of the disc. This is important in determining the extent of cupping and evaluating for possible glaucoma. The horizontal limits and the apexes of the "kidney bean" shape may also provide valuable information, but the vertical limits specifically help in assessing the c/d ratio.Rate this question:
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- 15.
Which of the following would be a "normal" c/d ratio for a caucasian
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0.3h x 0.3v
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0.6h x 0.6v
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0.9h x 0.9v
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0.1h x 0.3v
Correct Answer
A. 0.3h x 0.3v -
- 16.
True or false? retinal arteries lie above retinal veins.
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True
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False
Correct Answer
A. TrueExplanation
Retinal arteries do indeed lie above retinal veins. This is due to the difference in blood flow direction. Arteries carry oxygenated blood away from the heart and towards the tissues, while veins carry deoxygenated blood back to the heart. In the retina, the arteries bring oxygenated blood into the tissue, and they are positioned above the veins, which carry the deoxygenated blood out of the retina.Rate this question:
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- 17.
This reflective plaque is a __________________, and a common indicator of _______________
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Hollenhorst plaque; impending stroke
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Calcific plaque; impending stroke
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Fibrin plaque; impending embolis
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Hollenhorst plaque; impending heart attack
Correct Answer
A. Hollenhorst plaque; impending strokeExplanation
A Hollenhorst plaque is a type of plaque that is commonly found in the retinal artery. It is composed of cholesterol and other fatty substances that can break off and travel to smaller blood vessels in the brain, leading to a blockage. This blockage can cause an impending stroke, as the blood flow to the brain is compromised. Therefore, the presence of a Hollenhorst plaque is a common indicator of an impending stroke.Rate this question:
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- 18.
Talc retinopathy apparently is due to which of the following
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Snorting of talcum powder laced cocaine
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Snorting of pure cocaine
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Snorting pixie sticks
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Using talcum powder on their rump as a weeeee little baby
Correct Answer
A. Snorting of talcum powder laced cocaineExplanation
i know, i know supposedly there is no pathology on the final but there really isnt much else from Dr. TongRate this question:
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- 19.
Which of the following is responsible for this image
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Central retinal artery occlusion
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Central retinal vein occlusion
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Branch retinal vein occlusion
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Hypertensive retinopathy
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Diabetic macular edema
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Cherry red spot
Correct Answer
A. Central retinal artery occlusionExplanation
Central retinal artery occlusion is responsible for the image because it causes sudden, painless, and complete loss of vision in one eye. This occurs due to a blockage in the central retinal artery, which supplies blood to the retina. The lack of blood flow to the retina leads to ischemia and subsequent damage to the retinal cells, resulting in vision loss. The cherry red spot, which refers to a red spot in the center of the macula against a pale retina, is a characteristic finding in central retinal artery occlusion.Rate this question:
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- 20.
The newer the cotton wool spot, the
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Fluffier
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Sharper
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More distinct
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More circular
Correct Answer
A. FluffierExplanation
The term "cotton wool spot" refers to a white, fluffy lesion that appears on the retina of the eye. The question suggests that the newer the cotton wool spot, the characteristic it is of being "fluffier". This means that when the lesion is more recent, it is more likely to have a softer, less defined appearance.Rate this question:
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- 21.
The macular region consists of
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Perifovea, parafovea, fovea, and foveola
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Parafovea, fovea, and foveola
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Perifovea, fovea, and foveola
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Posterior pole, perifovea, parafovea, fovea, foveola
Correct Answer
A. Perifovea, parafovea, fovea, and foveolaExplanation
The macular region consists of the perifovea, parafovea, fovea, and foveola. These are different areas within the macula, which is the central part of the retina responsible for central vision and color perception. The perifovea is the outermost region surrounding the fovea, followed by the parafovea which is the intermediate region. The fovea is the central area of the macula and contains the highest concentration of cone cells, which are responsible for detailed vision. The foveola is the smallest and most central part of the fovea, where visual acuity is the highest.Rate this question:
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- 22.
The foveola is the central _____________mm of the fovea
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0.35
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1.5
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5.5
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2
Correct Answer
A. 0.35Explanation
The foveola is the central part of the fovea, which is a small depression in the retina of the eye. The foveola is the area of the fovea that contains the highest concentration of cone cells, which are responsible for sharp central vision. The given answer of 0.35mm indicates the size of the foveola, suggesting that it is a small area within the fovea.Rate this question:
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- 23.
Which of the following would you likely NOT find hard exudates
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Photoreceptor layer
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ILM
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ONL
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IPL
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OPL
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INL
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NFL
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GCL
Correct Answer
A. Photoreceptor layerExplanation
Hard exudates are yellowish-white deposits that occur in the retina and are typically seen in conditions such as diabetic retinopathy. The photoreceptor layer, which contains the rods and cones responsible for vision, is not a common location for the presence of hard exudates. Therefore, it is unlikely to find hard exudates in the photoreceptor layer.Rate this question:
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- 24.
Which of the following images shows hard exudates
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Option 1
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Option 2
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Option 3
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Option 4
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Option 5
Correct Answer
A. Option 5 -
- 25.
Which of the following images shows cotton wool spots
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Option 1
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Option 2
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Option 3
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Option 4
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Option 5
Correct Answer
A. Option 4 -
- 26.
Which of the following shows hard drusen
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Option 1
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Option 2
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Option 3
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Option 4
Correct Answer
A. Option 1 -
- 27.
True or false? regarding macular holes; IF IT AINT RED...IT AINT A HOLE
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True
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False
Correct Answer
A. TrueExplanation
The statement "IF IT AINT RED...IT AINT A HOLE" suggests that macular holes are only characterized by redness. However, this statement is false. Macular holes are actually characterized by a loss of central vision, distortion of straight lines, and a dark spot in the center of the visual field. Redness is not a defining characteristic of macular holes. Therefore, the correct answer is False.Rate this question:
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- 28.
A 73-year-old female presents to Ketchum Health University Eye Clinic for an eye wellness exam. She is a new patient. Her insurances are VSP and Medicare HMO. Her chief complaint is that she is having a hard time reading the small print on her medicine bottles. Will the exam be covered at Ketchum health?
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Yes
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No
Correct Answer
A. YesExplanation
her chief complaint is vision related she has vision insurance and ketchum health takes VSP- so she is good to go.Rate this question:
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- 29.
A 73-year-old female presents to Ketchum Health University Eye Clinic for an eye wellness exam. She is an established patient. Her insurances are VSP and Medicare. Her chief complaint is that she woke up this morning with "a hole" right in the center of her vision. Will the exam be covered at Ketchum health?
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Yes
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No
Correct Answer
A. YesExplanation
pt has medicareRate this question:
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- 30.
A 73-year-old female presents to Ketchum Health University Eye Clinic for an eye wellness exam. She is an established patient. Her insurances are VSP and Medicare. Her chief complaint is that she woke up this morning with "a hole" right in the center of her vision. should we dilate?
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Absolutely
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No
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Ehhhh maybe she doesnt want to be dilated
Correct Answer
A. AbsolutelyExplanation
a "hole" in your vision can mean many different things, so in order to have the most comprehensive exam possible, DILATE!!!! this is likely an issue involving macular edemaRate this question:
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- 31.
When using 21mmHg as the upper limit during tonometry, which of the following reason explains why this has a poor sensitivity
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Some patient with glaucoma may have IOP <21mmHg
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Some patients with glaucoma have IOP >21mmHg
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It is not high enough
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It is not low enough
Correct Answer
A. Some patient with glaucoma may have IOP <21mmHgExplanation
Some patients with glaucoma may have IOPRate this question:
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- 32.
During GAT, what is the diameter of the applanation area when the IOP has been successfully measured
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3.06mm
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6.00mm
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3.06cm
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0.306mm
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1.5mm
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3.00mm
Correct Answer
A. 3.06mmExplanation
During GAT (Goldmann Applanation Tonometry), the diameter of the applanation area when the IOP (Intraocular Pressure) has been successfully measured is 3.06mm.Rate this question:
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- 33.
You are preparing to do GAT on Jim. Jim has very high cyl, Rx -3.00 -6.00 x 45. how would you rotate your GAT probe in order to get the most accurate measurement
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Rotate the prism tip so the holder's red line is lined up with the 45o mark on the prism tip
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Rotate the prism tip so the holder's white line is lined up with the 45o mark on the prism tip
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Rotate the slit lamp oculars to make a 45o angle with the eye
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Rotate the prism tip so the 180o mark lines up with the 45o axis of Jim's eye
Correct Answer
A. Rotate the prism tip so the holder's red line is lined up with the 45o mark on the prism tipExplanation
To get the most accurate measurement during GAT on Jim, you should rotate the prism tip so the holder's red line is lined up with the 45o mark on the prism tip. This ensures that the probe is aligned correctly with the axis of Jim's eye, allowing for an accurate measurement of his high cylindrical prescription.Rate this question:
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- 34.
You look into the oculars during GAT and see this, which adjustment should you make
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Move to the right, and slightly up
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Move to left, and slightly up
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Move to the left, and slightly down
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Move to the right and slightly down
Correct Answer
A. Move to the right, and slightly upExplanation
If you see something in the oculars during GAT, it means that the object you are observing is not centered in the field of view. To adjust the position, you need to move to the right, which will bring the object closer to the center horizontally. Additionally, you need to move slightly up to bring the object closer to the center vertically. Therefore, the correct adjustment is to move to the right and slightly up.Rate this question:
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- 35.
A 43 year old patient was seen for a comprehensive eye exam at Ketchum Health. The IOPs with GAT are 16/17 mmHg at 1:30pm. The patient returns for a baseline DFE and the IOP are as follows: GAT 23/21 mmHg at 8:10am. You check post-dilated IOPs at the baseline DFE and IOP are as follows: GAT 32/25 mmHg at 8:45am. You have the patient back in 1 week just to recheck IOPs and find: GAT 15/13 mmHg at 2:15pm. What do these findings suggest?
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Diurnal variation
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The patient doesn't have glaucoma
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The patient is apprehensive
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The patient isn't taking their drops regularly
Correct Answer
A. Diurnal variationExplanation
The findings suggest diurnal variation, which refers to the natural fluctuation of intraocular pressure (IOP) throughout the day. In this case, the patient's IOP levels were higher in the morning and lower in the afternoon, indicating a normal pattern of fluctuation. This is a common occurrence in individuals without glaucoma. The other options, such as the patient not having glaucoma, being apprehensive, or not taking their drops regularly, are not supported by the given information.Rate this question:
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- 36.
A 30-year-old male patient presents for a problem-focused eye exam with a complaint of a red and painful eye OD that started this morning. He reports associated photophobia and reduced vision. His ocular history is significant for LASIK OU five years ago. Clinical exam is significant for corneal edema and 3+ cells in the anterior chamber of the right eye. The left eye is unremarkable. You diagnose him with a uveitis OD. How will the IOPs measured at today’s exam for the right eye compare to what they would have measured yesterday (before the red eye)?
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Lower today
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Higher today
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The same
Correct Answer
A. Lower todayExplanation
during the early stages of uveitis the ciliary production of aqueous is reduced (due to the inflammation), as the inflammation continues, cellular debris falls into the TM and clogs it up creating an increase in pressure (i think it was about a week after or so) then as the inflammation resolves the ciliary body ramps up aqueous production again but the debri is still clogging the TM, so pressure increases again even moreRate this question:
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- 37.
Which of the following is an example of a consultation
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Jim, you suspect Jim may have the early stage primary open angle glaucoma. unfortunately you do not have the appropriate diagnostic equipment at your clinic. you send jim to another physician to have an evaluation for glaucoma with notes for Jim to return to your office for continued care.
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Karen, you suspect Karen has advanced exudative age-related macular degeneration. After your conversation with Karen the decision is made to go to a local ophthalmologist for avastin injections every 4 weeks.
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Bob has early signs of cataracts. After you explain your findings and the significance, BOB is pissed about the news and decides to go another doctor for a second opinion
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Jack has early cataracts. after you explain your findings and significance, Jack respectfully asks for his records and if there is another optometrist in the area that you trust, so he could get a second opinion. you give him the information of a colleague and he explains that he will be back in a year just like always
Correct Answer
A. Jim, you suspect Jim may have the early stage primary open angle glaucoma. unfortunately you do not have the appropriate diagnostic equipment at your clinic. you send jim to another physician to have an evaluation for glaucoma with notes for Jim to return to your office for continued care.Explanation
This scenario is an example of a consultation because the optometrist refers Jim to another physician for further evaluation and care. The optometrist suspects that Jim may have glaucoma but does not have the necessary equipment to make a definitive diagnosis. Therefore, they send Jim to another physician who can provide the appropriate diagnostic evaluation. The optometrist also provides notes for Jim to return to their office for continued care, indicating that the consultation is part of an ongoing treatment plan.Rate this question:
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- 38.
Which of the following parts of a routine wellness exam would NOT be covered by medical insurance (select all that apply)
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Refraction with Rx given to pt
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Binocular vision screening
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IOP
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Anterior segment
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Visual fields
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Dilation
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OCT
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Option 8
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Diagnostic refraction (no Rx given)
Correct Answer(s)
A. Refraction with Rx given to pt
A. Binocular vision screeningExplanation
this question is really asking what vision insurance would cover (but that's too easy) vision insurance will cover "routine Vison related" tests. i like to think of it as, if the patient is benefiting/ getting something from the test somehow, then vision insurance will likely cover it (with an appropriate diagnosis ie. myopia, astigmatism etc). for a diagnostic refraction; you can do a refraction whenever the heck you want to: you dont always have to give the final Rx to the patient. when a refraction is done and no Rx is given, all the information still goes into the chart. so you may refer back at a later date to determine pertinent changes. But if the patient wants the Rx to get glasses, someone has to pay for that. gotta make that monayyy!Rate this question:
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- 39.
In the course of an eye wellness exam of an established pt. you do a refraction and/or pertinent related tests, in which the patient really wants to buy new glasses. you should bill the following CPT code
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92015, 92014
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92015
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92015, 92004
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92004
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92014, 92014
Correct Answer
A. 92015, 92014Explanation
The correct answer is 92015, 92014. This is because during an eye wellness exam, the optometrist or ophthalmologist may perform a refraction test to determine the patient's prescription for glasses or contact lenses (CPT code 92015). They may also perform other pertinent related tests, such as a comprehensive eye exam (CPT code 92014), to evaluate the overall health of the patient's eyes. Therefore, both CPT codes 92015 and 92014 are appropriate to bill for this scenario.Rate this question:
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- 40.
Karen comes into your office and states the following complaint "my right eye is red and irritated" you start a problem-focused exam in the health record during your FOLDARS she explains intermittent frequency. symptoms started 3 days ago. when to occurs it seems to last for the whole day. looking at the computer makes it worse. closing her eyes makes it better. and when it occurs it is about an 8 of 10 on the pain scale. which of the following would be the MOST appropriate chief complaint to document
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OD red and irritated
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My right eye is red and irritated
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OD Injection
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OD red and irritated x 3 days, intermittent, entire day (when occurs), computer makes it worse, closed eyes help, 8 of 10 pain scale
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Problem-focused exam
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Complete exam
Correct Answer
A. OD red and irritatedExplanation
you want to try to keep your CC as close to what the patient says, as close to their own words as you can. its ok to use abbreviations where appropriate. in this example, the patient did not elaborate on history of present illness until prompted, so including FOLDARS in the CC would be inappropriate.Rate this question:
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- 41.
According to the lectures, what is the minimum number of HPI categories that you need to cover/ask in order to bill 92004/92014
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4
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6
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1
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3
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5
Correct Answer
A. 4Explanation
According to the lectures, in order to bill for 92004/92014, a minimum of 4 HPI (History of Present Illness) categories need to be covered/asked.Rate this question:
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- 42.
In terms of disc diameters, how large is the FOV of a direct ophthalmoscope
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2dd
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5dd
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1dd
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3dd
Correct Answer
A. 2ddExplanation
The FOV (Field of View) of a direct ophthalmoscope is 2dd in terms of disc diameters. This means that when looking through the ophthalmoscope, the field of vision will cover an area that is equivalent to two disc diameters.Rate this question:
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- 43.
You can maximize the FOV of DO by all of the following except
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Increasing working distance
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Maximizing pupil
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Decreasing working distance
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Having a myopic patient wear their glasses
Correct Answer
A. Increasing working distanceExplanation
Increasing working distance can actually help maximize the field of view (FOV) of depth of field (DO). When the working distance is increased, the area that can be seen in focus expands, allowing for a larger FOV. Therefore, this option is not an exception and can help maximize the FOV of DO.Rate this question:
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- 44.
High myopia will ______________ the FOV of DO
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Decrease
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Increase
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Refractive error plays no part in field of view
Correct Answer
A. DecreaseExplanation
High myopia refers to severe nearsightedness, where distant objects appear blurry. In this context, the question is asking how high myopia affects the field of view (FOV) of depth of field (DO). The FOV refers to the extent of the visual area that can be seen without moving the eyes or head. Since high myopia causes blurry vision, it means that the individual's ability to see clearly and sharply within their FOV is reduced. Therefore, high myopia will decrease the FOV of DO.Rate this question:
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- 45.
For fundus biomicroscopy, decreasing slit lamp mag or increasing the dioptric power of the condensing lense will _______________ the FOV
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Increase
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Decrease
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Not change
Correct Answer
A. IncreaseExplanation
Increasing the dioptric power of the condensing lens or decreasing the slit lamp magnification will result in an increase in the field of view (FOV) during fundus biomicroscopy. This is because a higher dioptric power or lower magnification allows for a wider area of the fundus to be seen, increasing the overall FOV.Rate this question:
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- 46.
For fundus biomicroscopy, which condensing lens will give the best balance between magnification and FOV
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78D
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90D
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60D
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20D
Correct Answer
A. 78DExplanation
The 78D condensing lens would give the best balance between magnification and field of view (FOV) for fundus biomicroscopy. This lens provides a moderate level of magnification while still allowing a wide enough FOV to capture a sufficient amount of the fundus. The 90D lens may provide a larger FOV but at the expense of magnification, while the 60D and 20D lenses may offer higher magnification but with a narrower FOV.Rate this question:
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- 47.
For SL biomicroscopy, increasing the power of the condensing lens will _____________ FOV and _____________ magnification
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Increase, decrease
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Decrease, increase
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Increase, increase
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Decrease, decrease
Correct Answer
A. Increase, decreaseExplanation
Increasing the power of the condensing lens in SL biomicroscopy will increase the field of view (FOV) because a higher power lens allows for a wider area to be viewed. However, it will decrease the magnification because a higher power lens spreads out the light rays, resulting in a smaller image size.Rate this question:
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- 48.
A red-free filter will accentuate all of the following EXCEPT
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Choroidal melanoma
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Retinal nerve fiber layer
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Blood vessels
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Choroidal nevi
Correct Answer
A. Choroidal neviExplanation
A red-free filter is used in ophthalmology to enhance the visibility of certain structures in the eye by blocking out red light. It accentuates the contrast between different components of the eye, making them easier to distinguish. Choroidal melanoma, retinal nerve fiber layer, and blood vessels are all structures that can be accentuated by a red-free filter. However, choroidal nevi are not accentuated by this filter, meaning they do not stand out as much compared to the other structures.Rate this question:
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- 49.
You are evaluating your patients left eye using your DO, which of the following directions would direct your patient to fixate to center the ONH in your view
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Up and to the right
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Down and to the right
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Up and to the left
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Down and to the left
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Up and towards your nose
Correct Answer
A. Up and to the rightExplanation
the reason why up and towards your nose is incorrect is because... we have two eyes, our nose is in the middle of said eyes. when you tell a patient to look towards their nose, they dont know which direction to look, its left for the right eye but right form the left eye, its just confusing. much easier to just tell the patient to look in a directionRate this question:
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Quiz Review Timeline (Updated): Mar 22, 2023 +
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Current Version
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Mar 22, 2023Quiz Edited by
ProProfs Editorial Team -
May 12, 2021Quiz Created by
Catherine Halcomb
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