What is Central Vision loss?

Published on
January 5, 2022

When we talk about vision, we think about two parts of the vision, the central portion of the vision and the peripheral part of the vision. The central vision is going to have to do more with a macula, which is where most of the cones are densely located. These cones are going to be more responsible for your really sharp detailed vision as well as your color vision. If a patient has a medical condition, such as macular degeneration or diabetic retinopathy amongst other diseases, then we could have a reduction in the central visual acuity. Basically, we have physical damage that occurs to the central part of the retina. And that decreases the vision. 

When is someone with central vision loss “Low Vision” or “Legally Blind”?

Typically, when somebody comes to the eye doctor, the eye doctor is looking to be able to correct them to 20/20 vision. When a person has an eye disease, and it damages the retina, they will no longer be correctable to 20/20. Once a person is no longer able to be corrected to 20/20 vision,  which in a lot of cases is once we get to about 20/70 visual acuity, they are then classified as being in the low vision category. When a patient gets to 20/200, that's considered legally blind. In these cases, when somebody starts to have difficulty with central vision, then we can teach them to do what's called eccentric viewing. And in that case, they learn to use the adjacent unaffected peripheral retina to view with instead of the central retina. Of course, it's not going to be as good visual acuity as someone with 20/20 vision, but they're still going to be able to utilize that retina so they don't go completely blind.

Learn more about central vision here


If you are experiencing central vision loss, schedule a low vision eye exam with our eye doctor by calling us at (423) 710 3965.


Vision therapy is well worth the response, time and effort. Our Son had a hard time focusing and writing neatly. After vision therapy Seth could complete a task in half the time if previously took. His abilities to focus improved greatly and so did his handwriting.

Also, he was better at listening. As a parent, we wanted learning to be fun for our Son, and vision therapy made this possible.

Amanda T.

Vision Therapy is well worth the expense, time and effort. Our son had a hard time focusing handwriting neatly. After vision therapy Seth could complete a task in half the time it previously took his abilities to focus and improved greatly and so did his handwriting.

Also, he was better at listening. As a parent you wanted learning to be fun for our son and vision therapy made this possible.

Alexa H.

Vision Therapy has given or son the tools he needs to be able to scan and read the written word more effectively and efficiently.

He love working with John and these working sessions give him the motivation to gladly work on his homework assignments.

It amazed us to see the difference in the tracking of his eyes and along a line of it's from the beginning to the end of the treatment.

Dr. McBryar , Kristen and John  are all marvelous and we would recommend them to anyone I only wish that we would have found them sooner!

Charlotte M.

Prior to coming to the institute for vision development my son complained of daily headaches. Therapy has eliminated his headaches completely. I love knowing my son is able to learn pain-free for the rest of his life because of the work that has been done over just a few weeks in this office. He he absolutely loved coming that didn't even feel like going to a doctor or therapy. We are grateful for the relief he was able to find by coming here.

Thank you!

Olivia C.

Seems much less frustrated with life

Reads non-stop and fast

Spelling abilities have been hugely improved

Seems much more confident

Thank You!!!

Kelly O.

When we first came to the practice, my son did not have huge issues, but lots of small ones- trouble with reading, sports (hitting the baseball consistently), coordination, etc- that were not easily detectable,but when put together presented issues. The staff here were all very professional and loving towards him. While I was concerned in the reading, my son was concerned with the athletic side. Seeing improvement night off the bat gave him confidence that i have nor seen in him and made him want to not only Come to therapy, but also made him want to work hard. He has surpassed his grade level and above in reading and hit his first home run this year! Thank you!!!

Alice M.
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