Cone-Rod Dystrophy is characterized by which of the following?

Cone-Rod Dystrophy is characterized by which of the following?

• A. Double Vision and Color Loss Only at Night.
• B. Persistent Eye Pain Without Vision Change.
• C. Photophobia, Decreased Visual Acuity.
• D. Complete Blindness From Birth.

Answer: (C)

Cone-rod dystrophy primarily attacks cone cells in the retina first, and cones are responsible for sharp central vision and color discrimination, as well as adapting to bright light. When cones are damaged, central vision becomes blurry (decreased visual acuity) and colors can be affected, while light sensitivity (photophobia) often increases because the eye struggles with bright environments. This combination—photophobia plus reduced central vision—is the hallmark early presentation of cone-rod dystrophy. Over time, rod cells may degenerate too, leading to night vision problems and peripheral field loss, but the characteristic initial signs center on light sensitivity and diminished acuity. The other options don’t fit this pattern of early central vision decline with light sensitivity.

Cone-rod dystrophy primarily attacks cone cells in the retina first, and cones are responsible for sharp central vision and color discrimination, as well as adapting to bright light. When cones are damaged, central vision becomes blurry (decreased visual acuity) and colors can be affected, while light sensitivity (photophobia) often increases because the eye struggles with bright environments. This combination—photophobia plus reduced central vision—is the hallmark early presentation of cone-rod dystrophy. Over time, rod cells may degenerate too, leading to night vision problems and peripheral field loss, but the characteristic initial signs center on light sensitivity and diminished acuity. The other options don’t fit this pattern of early central vision decline with light sensitivity.