Did you know MLBers have 20/12 vision or vision corrected to 20/12. If their vision weakens to 20=20 they get contacts. 3.9% of MLBers have 20/8 eyesight.
The average major-league baseball player, in the experience of Red Sox ophthalmology consultant Daniel Laby, has vision that measures around 20-12 or has been corrected to 20-12.
Baseball Vision: When 20/20 Eyesight Just Won’t Cut It
https://www.providencejournal....316/SPORTS/303169996
Where Baseball And Eyesight Take The National Stage