When it is said that you have 6 by 6 eyesight, it means that you can read from the second line of the eye chart to the bottom line. This essentially means you have perfect eyesight and do not need glasses.
You tend to have your eyesight tested from 6 meters or 20 feet away from the chart with the letters on it. If your eyesight is 6/12 (pronounced "six over twelve"), then your eyesight is not quite normal. This is because the letters you can read from 6 meters away can be read by a normal person from 12 meters away. That is, you have to be standing twice as close. If your eyesight is 6/6 (or 20/20 in feet), you are normal. If your eyesight is 6/5, you can see from 6 feet what a normal person can only see from 5 meters away. That is, they would have to take a step towards the chart to read these letters. 20/10 would mean that you can see things clearly at 20 feet that an average person can see clearly from 10. 20/20 is the standard for good eyesight.
The Human eyesight is just fine for a person but many animals have better eyesight for hunting and getting away from other animals like the tiger can see 6 times better than a human at night
True, but rhinos do have particularly good eyesight.
Pandas have poor eyesight.
Vitamin A is essential for eyesight.
360 degree eyesight.
Lady's eyesight
no that's not possible
Retinopathy from diabetes eyesight recoverd
my eyesight is very bad
No they have good eyesight like all anteolopes