Prisms for Low Vision

Prisms are a popular, specialized device for low vision patients that helps those with visual field defects and other vision problems too great for regular corrective lenses to fix.

Prisms for Low Vision in Hixson

What Do Prisms For Low Vision Do?

Many people who suffer from low vision experience a decrease in their peripheral vision and visual field. In conditions such as scotoma, patients can develop non-seeing areas in their visual field which make many tasks more difficult. Prism lenses can also help patients who have central vision loss, double vision, and symptoms associated with that such as headaches and balance issues.

While for most low vision patients the vision loss cannot be reversed, there are devices, such as prisms, designed to help improve their vision and allow them to regain some measure of their independence.

Prisms also help reduce the eye strain that can be caused by using close vision with glasses for extended periods of time. For patients who need high levels of magnification, prisms allow them to keep working for extended periods in comfort.

These prisms, also known as fresnel prisms, are made of optical polyvinyl chloride, which increases the chromatic dispersion and produces a loss of contrast. These effects have been found to be helpful for patients with blurry and diplopic vision with distance viewing.

For visual field issues, the prisms can focus the image into a part of the retina unaffected by vision loss. Additionally, if the eyes have different visual capabilities, prism lenses can help equalize things and help avoid eye strain.

Amplify Eyecare Chattanooga

Press-on Prism Lenses

These are very thin lenses designed to fit onto ophthalmic lenses to provide additional lens power without making the lenses overly thick (which is an issue with standard high power prism lenses.) This makes the glasses both more comfortable to wear, and better looking. It will be less obvious that the wearer requires significant vision assistance.

Built-in Prism Glasses

Another option are custom made prism glasses. These are great for patients with a regular need of prism visual assistance, though they are thicker, and  have a different look from regular glasses.

Low Vision Readers

Low vision readers are prism lenses specifically designed to help patients with central scotomas have an easier time reading. Through significant magnification, they reduce the impact of the scotoma and make reading less of a struggle. Low vision readers can be both handheld and hands-free.

Low Vision Readers
Where Can I Get Prisms for Low Vision?

Where Can I Get Prisms for Low Vision?

Prism lenses are prescription products, so you will need to see a low vision optometrist for a low vision eye exam, so they can determine what type and strength of prisms will be best for you to maximize your vision to suit your needs. The wrong prisms can lead to discomfort and eye strain, so properly prescribed prism lenses are vital.

Dr. McBryar cartoon


Prism lenses can be extremely helpful for patients with vision loss stemming from low vision conditions like scotoma. As prescription products, it is important to see a low vision doctor to receive a low vision exam and prescription. If you are suffering from low vision and think prism lenses could help you, you can contact Amplify EyeCare Chattanooga at (423) 710 3965 to schedule an appointment for an eye exam and consultation. Patients with low vision visit our clinic from all over Tennessee, and we are proud to be a leading provider of low vision services for patients from Hixson, Chattanooga, Cleveland, and Middle Valley.

Related Articles

1 2 3


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.
1 2 3 10



The impact of screen time on dry eye: tips for prevention

According to a recent study, people who spend more than 2 hours a day on digital devices are 2.5 times […]

Read More

Chattanooga pediatric eye doctor shares how children with vision problems can struggle academically

Many people believe that good eyesight is simply the ability to read the "20/20" line on an eye chart, but […]

Read More

Is there a difference between a scratched eye and a scratched cornea?

Corneal abrasions, or scratched corneas, are a common occurrence and make up a significant portion of eye injury cases. In […]

Read More
see all blogs

Contact Us To Amplify Your EyeCare

Amplify EyeCare Chattanooga Logo

Working Hours

Monday - Tuesday
7:30AM - 5:15PM

Wednesday - Thursday
8:00AM - 5:15PM

Friday - Sunday

1043 Executive Drive Suite #101 Hixson, TN 37343
(423) 710 3966
Website Accessibility Policy
Safety protocols page
privacy policy
For Patients
Call Us
eyefile-adduserphone-handsetcalendar-fullarrow-uparrow-right linkedin facebook pinterest youtube rss twitter instagram facebook-blank rss-blank linkedin-blank pinterest youtube twitter instagram