How does eyesight between eyes work out?

Question

In all the previous times I've taken an eye exam, I've been 20/20. I took one today after several years and found out my right eye is 20/15 but my left is 20/25. I don't remember ever having two scores written for each eye before. Does that mean that both my eyes were 20/20 in the past? Or did my eyes average out to be 20/20? Is it possible for eyesight to get "better" in one eye?

Answer 1

Could be it was averaged. Could be they changed.  Could be you found a better Optomtrist.    

Yes one eye can get better.  Eyes usually change a bit every year.

Answer 2

Visual acuity testing

The visual acuity score compares your performance with that of people who have normal vision, using an eye chart. Each eye's score is expressed as two numbers, such as 20/20 (6/6) or 20/100 (6/30). The first number is the distance you stand from the chart, usually 20 ft when using a typical wall chart. The second number is the distance from which people with normal eyesight can read the same line on the eye chart.

20/20 (6/6) vision is considered normal. A person with 20/20 vision can see at 20 ft what people with normal vision can see at this distance.

    * When the second number is smaller than the first number, the person's vision is better than normal. For instance, a person with 20/10 (6/3) vision can see from 20 ft what people with normal vision can see from 10 ft.

    * When the second number is larger than the first number, the person's vision is worse than normal.

    * A person with 20/200 (6/60) vision or less in his or her best eye when wearing corrective lenses is considered legally blind.

For near vision, 14/14 (35/35) is normal, with 14 in. being the normal distance for reading. If the bottom number is greater than 14 (14/20, for example, or 35/50), it means that you have reduced near vision. You have to be 14 in. away to read print that people with normal near vision can read from 20 in..

Answer 3

been wearing glasses for life and my eyes have just got worse. not got better i'm blind in my right eye.

maybe your eyes are getting better.