John recently had his visual acuity measured using the Snellen Eye Chart. His results indicated that his vision is 20/15 in both eyes. Which answer best describes what 20/15 vision means? *

The answer is below

Explanation:

Snellen Eye Chart was developed in 1862 by Dutch ophthalmologist Herman Snellen, to determine if humans have a normal vision which is rated at 20/20

However, in the case of John, a 20/15 vision means John can see a line in the eye chart at 20 feet away that the average person can only see when they are 15 feet away.

This shows John has a sharper than average visual acuity.

no, because those are both different running competitions. while distance runners train their legs and their lungs to run long amounts of time, the sprinters are training their legs and their lungs to give all they have in the little amount of area they need to cover. the brain also plays a huge part in all of this.

the brain is the only thing in your body that sends messages to your body telling you to run. if you are a long distance runner and you have the mind set of a sprinter, you will not get anywhere. if you have a long distance mind set and you have to run 200m in 20 seconds then you will not make it in time.