BRS BRS Visual Anatomy & Pathology 1 — Questions and Answers
Question 1: Which layer of the eye contains the photoreceptor cells (rods and cones)?
- Choroid
- Sclera
- Retina (Correct answer)
- Cornea
Correct answer: Retina
The retina is the light-sensitive layer at the back of the eye that contains rods (for low-light vision) and cones (for color and detail vision).
Question 2: Glaucoma primarily damages which structure of the eye?
- Lens
- Cornea
- Optic nerve (Correct answer)
- Macula
Correct answer: Optic nerve
Glaucoma is characterized by increased intraocular pressure that damages the optic nerve, leading to progressive peripheral vision loss.
Question 3: Age-related macular degeneration (AMD) primarily affects which area of vision?
- Peripheral vision
- Central vision (Correct answer)
- Night vision
- Color vision only
Correct answer: Central vision
AMD damages the macula, which is responsible for sharp central vision needed for reading, driving, and recognizing faces.
Question 4: What is the term for the gradual clouding of the eye's natural lens?
- Glaucoma
- Uveitis
- Cataract (Correct answer)
- Keratoconus
Correct answer: Cataract
A cataract is a clouding of the crystalline lens of the eye, causing blurry vision, glare sensitivity, and reduced contrast.
Question 5: Diabetic retinopathy results from damage to which eye structures?
- Corneal endothelial cells
- Lens epithelium
- Retinal blood vessels (Correct answer)
- Ciliary muscle fibers
Correct answer: Retinal blood vessels
Diabetic retinopathy occurs when chronically high blood sugar damages the tiny blood vessels supplying the retina, causing leakage, swelling, and abnormal vessel growth.
Question 6: Which term describes the area of no visual perception in the visual field, often caused by optic nerve or retinal damage?
- Scotoma (Correct answer)
- Diplopia
- Nystagmus
- Hemianopia
Correct answer: Scotoma
A scotoma is a blind spot or area of reduced vision within the visual field, which can result from conditions such as glaucoma, AMD, or optic nerve damage.
BRS BRS Visual Anatomy & Pathology 1
Which layer of the eye contains the photoreceptor cells (rods and cones)?