In an aphakic eye with vision 20/50 correctable to 20/25, what is the standard rating?

In an aphakic eye with vision 20/50 correctable to 20/25, what is the standard rating?

• A. 23%
• B. 21%
• C. 25%
• D. 20%

Answer: (D)

The key idea is how monocular vision impairment is rated using the best corrected vision in the affected eye. In this standard rating scheme, an aphakic eye that can be corrected to 20/25 or better falls into the 20% impairment category. Here, the eye is 20/50 but can be corrected to 20/25, which meets that threshold, so the standard rating is 20%. The other percentages would correspond to different, worse thresholds of corrected acuity and aren’t applicable in this case.

The key idea is how monocular vision impairment is rated using the best corrected vision in the affected eye. In this standard rating scheme, an aphakic eye that can be corrected to 20/25 or better falls into the 20% impairment category. Here, the eye is 20/50 but can be corrected to 20/25, which meets that threshold, so the standard rating is 20%. The other percentages would correspond to different, worse thresholds of corrected acuity and aren’t applicable in this case.