NCLEX Quiz: Take The Trivia Test On Eye Disorders And care!

1. Tonometry is performed on the client with a suspected diagnosis of glaucoma. The nurse analyzes the test results as documented in the client's chart and understands that normal intraocular pressure is:

2-7 mmHg

10-21 mmHg

22-30 mmHg

31-35 mmHg

Tonometry is the method of measuring intraocular fluid pressure using a calibrated instrument that indents or flattens the corneal apex. Pressures between 10 and 21 mmHg are considered within normal range.

Explanation

Tonometry is the method of measuring intraocular fluid pressure using a calibrated instrument that indents or flattens the corneal apex. Pressures between 10 and 21 mmHg are considered within normal range.

2. The clinic nurse notes that the following several eye examinations. the physician has documented a diagnosis of legal blindness in the client's chart. The nurse reviews the results of the Snellen's chart test expecting to note which of the following?

20/20 vision

20/40 vision

20/60 vision

20/200 vision

Legal blindness is defined as 20/200 or less with corrected vision (glasses or contact lenses) or visual acuity of less than 20 degrees of the visual field in the better eye.

Explanation

Legal blindness is defined as 20/200 or less with corrected vision (glasses or contact lenses) or visual acuity of less than 20 degrees of the visual field in the better eye.

3. The client with glaucoma asks the nurse is complete vision will return. The most appropriate response is:

“Your vision will return as soon as the medications begin to work.”

“Your vision will never return to normal.”

“Your vision loss is temporary and will return in about 3-4 weeks.”

Vision loss to glaucoma is irreparable. The client should be reassured that although some vision has been lost and cannot be restored. further loss may be prevented by adhering to the treatment plan. Option C does not provide reassurance to the client.

Explanation

Vision loss to glaucoma is irreparable. The client should be reassured that although some vision has been lost and cannot be restored. further loss may be prevented by adhering to the treatment plan. Option C does not provide reassurance to the client.

4. The nurse is performing an assessment in a client with a suspected diagnosis of cataract. The chief clinical manifestation that the nurse would expect to note in the early stages of cataract formation is:

Eye pain

Floating spots

Blurred vision

Diplopia

A gradual. painless blurring of central vision is the chief clinical manifestation of a cataract. Early symptoms include slightly blurred vision and a decrease in color perception.

Explanation

A gradual. painless blurring of central vision is the chief clinical manifestation of a cataract. Early symptoms include slightly blurred vision and a decrease in color perception.

5. The nurse is developing a plan of care for the client scheduled for cataract surgery. The nurse documents which more appropriate nursing diagnosis in the plan of care?

Self-care deficit

Imbalanced nutrition

Disturbed sensory perception

Anxiety

The most appropriate nursing diagnosis for the client scheduled for cataract surgery is Disturbed sensory perception (visual) related to lens extraction and replacement. Although the other options identify nursing diagnoses that may be appropriate. they are not related specifically to cataract surgery.

Explanation

The most appropriate nursing diagnosis for the client scheduled for cataract surgery is Disturbed sensory perception (visual) related to lens extraction and replacement. Although the other options identify nursing diagnoses that may be appropriate. they are not related specifically to cataract surgery.

6. The client's vision is tested with a Snellen's chart. The results of the tests are documented as 20/60. The nurse interprets this as:

The client is legally blind.

The client’s vision is normal

Vision that is 20/20 is normal. that is. the client is able to read from 20 feet what a person with normal vision can read from 20 feet. A client with a visual acuity of 20/60 only can read at a distance of 20 feet of what a person with normal vision can read at 60 feet.

Explanation

Vision that is 20/20 is normal. that is. the client is able to read from 20 feet what a person with normal vision can read from 20 feet. A client with a visual acuity of 20/60 only can read at a distance of 20 feet of what a person with normal vision can read at 60 feet.

7. The clinic nurse is preparing to test the visual acuity of a client using a Snellen chart. Which of the following identifies the accurate procedure for this visual acuity test?

Both eyes are assessed together. followed by the assessment of the right and then the left eye.

The right eye is tested followed by the left eye. and then both eyes are tested.

Visual acuity is assessed in one eye at a time. and then in both eyes together with the client comfortably standing or sitting. The right eye is tested with the left eye covered; then the left eye is tested with the right eye covered. Both eyes then are tested together. Visual acuity is measured with or without corrective lenses and the client stands at a distance of 20ft. from the chart.

Explanation

Visual acuity is assessed in one eye at a time. and then in both eyes together with the client comfortably standing or sitting. The right eye is tested with the left eye covered; then the left eye is tested with the right eye covered. Both eyes then are tested together. Visual acuity is measured with or without corrective lenses and the client stands at a distance of 20ft. from the chart.

8. In preparation for cataract surgery. the nurse is to administer prescribed eye drops. The nurse reviews the physicians orders. expecting which type of eye drops to be instilled?

An osmotic diuretic

A miotic agent

A mydriatic medication

A thiazide diuretic

A mydriatic medication produces mydriasis or dilation of the pupil. Mydriatic medications are used preoperatively in the cataract client. These medication act by dilating the pupils. They also constrict blood vessels. An osmotic diuretic may be used to decrease intraocular pressure. A miotic medication constricts the pupil. A thiazide diuretic is not likely to be prescribed for a client with a cataract.

Explanation

A mydriatic medication produces mydriasis or dilation of the pupil. Mydriatic medications are used preoperatively in the cataract client. These medication act by dilating the pupils. They also constrict blood vessels. An osmotic diuretic may be used to decrease intraocular pressure. A miotic medication constricts the pupil. A thiazide diuretic is not likely to be prescribed for a client with a cataract.

9. The client is being discharged from the ambulatory care unit following cataract removal. The nurse provides instructions regarding home care. Which of the following. if stated by the client. indicates an understanding of the instructions?

“I will take Aspirin if I have any discomfort.”

“I will sleep on the side that I was operated on.”

“I will wear my eye shield at night and my glasses during the day.”

“I will not lift anything if it weighs more that 10 pounds.”

The client is instructed to wear a metal or plastic shield to protect the eye from accidental and is instructed not to rub the eye. Glasses may be worn during the day. Aspirin or medications containing aspirin are not to be administered or taken by the client and the client is instructed to take acetaminophen as needed for pain. The client is instructed not to sleep on the side of the body on which the operation occurred. The client is not to lift more than 5 pounds.

Explanation

The client is instructed to wear a metal or plastic shield to protect the eye from accidental and is instructed not to rub the eye. Glasses may be worn during the day. Aspirin or medications containing aspirin are not to be administered or taken by the client and the client is instructed to take acetaminophen as needed for pain. The client is instructed not to sleep on the side of the body on which the operation occurred. The client is not to lift more than 5 pounds.

10. During the early postoperative period. the client who had a cataract extraction complains of nausea and severe eye pain over the operative site. The initial nursing action is to:

Call the physician

Administer the ordered main medication and antiemetic

Reassure the client that this is normal.

Turn the client on his or her operative side

Severe pain or pain accompanied by nausea is an indicator of increased intraocular pressure and should be reported to the physician immediately. The other options are inappropriate.

Explanation

Severe pain or pain accompanied by nausea is an indicator of increased intraocular pressure and should be reported to the physician immediately. The other options are inappropriate.