2 Comments
User's avatar
⭠ Return to thread
Aria Veritas's avatar

In the optic industry?

Expand full comment
Eileen's avatar

Normal visual acuity is considered to be 20/20 vision, which is line 8 on the Snellen Eye Chart. This means that from 20 feet away, you can read that line clearly without correction. "Perfect sight" is just a term, but visual acuity is more apt.

Expand full comment