Eye Disorder Quiz: Red Eye To Vision Loss

1. What is the most common bacterial cause of acute bacterial conjunctivitis in adults?

Staphylococcus aureus

Streptococcus pneumoniae

Haemophilus influenzae

Pseudomonas aeruginosa

2. Which of the following is a sign of acute angle-closure glaucoma?

Gradual vision loss over months

Hazy cornea and mid-dilated pupil

Painless floaters

Presbyopia onset

3. A corneal abrasion typically causes severe pain due to involvement of which structure?

Epithelium

Stroma

Descemet's membrane

Endothelium

4. What is the primary mechanism of vision loss in age-related macular degeneration (AMD)?

Lens opacification

Retinal pigment epithelium degeneration and photoreceptor loss

Optic nerve atrophy

Corneal scarring

5. Diabetic retinopathy is characterized by which early clinical finding?

Microaneurysms and dot-blot hemorrhages

Vitreous hemorrhage

Optic disc cupping

Corneal neovascularization

6. Which condition causes a painless, progressive loss of peripheral vision that may be unnoticed until advanced?

Acute iritis

Open-angle glaucoma

Corneal ulcer

Retinal detachment

7. Cataracts reduce vision primarily by causing which optical effect?

Increased corneal curvature

Light scattering and reduced transparency

Retinal inflammation

Optic nerve compression

8. True or False: Presbyopia is caused by loss of lens elasticity and is correctable with refractive surgery alone.

True

False

9. Keratoconus is characterized by progressive thinning and cone-shaped deformation of which ocular structure?

Lens

Cornea

Retina

Sclera

10. Which of the following is the leading preventable cause of blindness worldwide?

Myopia

Cataracts

Diabetic retinopathy

Refractive errors

11. A patient with sudden flashing lights and floaters followed by a shadow in the visual field likely has which condition?

Posterior vitreous detachment

Retinal detachment

Vitreous floaters

Presbyopia

12. Herpes simplex keratitis can cause permanent vision loss through which mechanism?

Acute infection alone

Corneal scarring and neovascularization

Lens opacity

Retinal inflammation

13. True or False: Dry eye syndrome exclusively affects tear production and never involves tear composition or eyelid function.

True

False

14. Glaucomatous optic neuropathy involves selective damage to which nerve fibers, leading to characteristic visual field loss?

Central retinal nerve fibers

Ganglion cell axons, particularly in the arcuate region

Photoreceptor outer segments

Müller cells

15. Which vascular ocular condition presents with sudden painless vision loss and cotton-wool spots on fundoscopy?

Branch retinal artery occlusion

Central retinal vein occlusion

Arteritic anterior ischemic optic neuropathy

Proliferative diabetic retinopathy

Eye Disorder Quiz: Red Eye to Vision Loss