The typical vision range for ocular albinism is which of the following?

• A. 20/20-20/40
• B. 20/10-20/20
• C. 20/60-20/100
• D. 20/200-20/400

Answer: (C)

Ocular albinism typically reduces visual acuity because of structural differences in the retina, especially foveal underdevelopment, which lowers image sharpness and can accompany nystagmus. The most common acuity range seen is about 20/60 to 20/100. This means at a standard distance of 20 feet, the person sees what someone with normal vision would see at 60 to 100 feet. While individual vision can vary, this range best represents the usual level of clarity for many with ocular albinism.

Other ranges describe vision that is closer to normal or significantly more reduced. A 20/20 to 20/40 level is relatively good and not typical for ocular albinism, while 20/10 to 20/20 would be better than normal and isn’t representative of the common experience. A 20/200 to 20/400 level denotes legal blindness in many places and is more severe than what is typically observed in ocular albinism, though rare cases may appear closer to that endpoint.