CPOA Ocular Diseases & Conditions 1 — Questions and Answers
Question 1: A patient presents with a gradual, painless clouding of vision and reports difficulty driving at night. These symptoms are most consistent with which condition?
- Acute angle-closure glaucoma
- Cataract (Correct answer)
- Retinal detachment
- Central serous chorioretinopathy
Correct answer: Cataract
Cataracts cause progressive, painless clouding of the crystalline lens, leading to blurry vision and increased glare or difficulty with night driving.
Question 2: Which type of glaucoma is considered a medical emergency requiring immediate treatment?
- Primary open-angle glaucoma
- Normal-tension glaucoma
- Acute angle-closure glaucoma (Correct answer)
- Pigmentary glaucoma
Correct answer: Acute angle-closure glaucoma
Acute angle-closure glaucoma causes a sudden spike in intraocular pressure that can rapidly damage the optic nerve and requires emergency intervention to prevent permanent vision loss.
Question 3: Age-related macular degeneration (AMD) primarily affects which structure of the eye?
- Optic nerve
- Cornea
- Macula (Correct answer)
- Ciliary body
Correct answer: Macula
AMD causes progressive damage to the macula, the central region of the retina responsible for sharp, detailed central vision.
Question 4: A diabetic patient reports seeing floating spots and a gradual decrease in vision. The most likely cause of these symptoms is:
- Diabetic retinopathy (Correct answer)
- Refractive error
- Presbyopia
- Dry eye syndrome
Correct answer: Diabetic retinopathy
Diabetic retinopathy, caused by damage to retinal blood vessels from prolonged high blood sugar, can cause vitreous hemorrhage leading to floaters and gradual vision loss.
Question 5: Which of the following is the hallmark sign of bacterial conjunctivitis that distinguishes it from viral conjunctivitis?
- Itching and tearing
- Preauricular lymph node enlargement
- Mucopurulent discharge (Correct answer)
- Follicles on the palpebral conjunctiva
Correct answer: Mucopurulent discharge
Mucopurulent (thick, yellow-green) discharge is the hallmark of bacterial conjunctivitis, while viral conjunctivitis more commonly produces watery discharge and may include preauricular lymphadenopathy.
Question 6: Dry eye syndrome is most accurately described as a condition involving:
- Excessive aqueous tear production
- Dysfunction of the tear film leading to ocular surface damage (Correct answer)
- Blocked nasolacrimal duct causing overflow of tears
- Inflammation of the inner eyelid only
Correct answer: Dysfunction of the tear film leading to ocular surface damage
Dry eye syndrome is a multifactorial disease involving tear film instability and dysfunction, resulting in ocular surface damage, discomfort, and visual disturbance.
Question 7: A patient with keratoconus would most likely benefit from which type of vision correction?
- Single-vision soft contact lenses
- Standard bifocal spectacles
- Rigid gas-permeable (RGP) contact lenses (Correct answer)
- Prism glasses
Correct answer: Rigid gas-permeable (RGP) contact lenses
Rigid gas-permeable contact lenses are the preferred correction for keratoconus because they vault over the irregular corneal surface, providing a smooth refracting surface and improved visual acuity.
CPOA Ocular Diseases & Conditions 1
A patient presents with a gradual, painless clouding of vision and reports difficulty driving at night.
These symptoms are most consistent with which condition?