Which retina dysfunction primarily affects central vision due to degeneration of the macula?

Which retina dysfunction primarily affects central vision due to degeneration of the macula?

• A. Glaucoma.
• B. Cataract.
• C. AMD.
• D. Presbyopia.

Answer: (C)

Central vision depends on the macula, the central retina region packed with cones for fine detail and color. When the macula gradually degenerates with age, the sharpness of central vision fades, making tasks like reading or recognizing faces difficult while peripheral vision remains relatively intact. This pattern is characteristic of age-related macular degeneration, or AMD, which can be dry (drusen deposits) or wet (neovascular leakage and scarring). In contrast, glaucoma affects the optic nerve and usually starts with peripheral vision loss; cataracts blur vision overall due to lens clouding; presbyopia reduces near focusing from lens hardening, not central macular damage. Thus, central vision loss driven by macular degeneration points to AMD.

Central vision depends on the macula, the central retina region packed with cones for fine detail and color. When the macula gradually degenerates with age, the sharpness of central vision fades, making tasks like reading or recognizing faces difficult while peripheral vision remains relatively intact. This pattern is characteristic of age-related macular degeneration, or AMD, which can be dry (drusen deposits) or wet (neovascular leakage and scarring). In contrast, glaucoma affects the optic nerve and usually starts with peripheral vision loss; cataracts blur vision overall due to lens clouding; presbyopia reduces near focusing from lens hardening, not central macular damage. Thus, central vision loss driven by macular degeneration points to AMD.