Filters for Low Vision

Sometimes, low vision patients experience vision difficulty in certain lighting conditions. Fortunately, specialized filters exist which can help maintain comfort in all environments.

Filters for Low Vision in Chattanooga

What are Filters for Low Vision?

Some low vision patients have difficulty seeing in certain lighting conditions. There is a range of filter types that can help these patients see better in those conditions, and the type and intensity of the filter will vary based on a patient’s individual condition.

Filters may be recommended for patients that have difficulty with:

  • Bright lights 
  • Night driving
  • Outdoors in bright sunlight 
  • While on the computer or phone

There are two categories of filters for low vision:

Polarizing filters: These filters reduce glare, and also heighten the perception of color and relief.

Color Filters: Color filters improve visual function by optimizing contrast perception .

 

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How do Filters Work?

Filters for low vision patients function in a similar manner to sunglasses, in that they affect the amount of and type of light that enters the eyes. In addition to increasing visibility and comfort, they can also provide protection for the eyes.

For color filters, the different tints change the nature of the light entering the eyes to provide additional clarity and contrast in different situations (for some, filters are needed while outdoors while sunny or while cloudy; for others, while indoors.

Polarizing filters filter out glare to increase comfort and to increase visibility outdoors.

How Are Filters Prescribed?

Filters for low vision patients are either prescribed by a low vision doctor, following a low vision eye exam, which tests for color contrast deficits.  After the exam the doctor or low vision therapist will walk you through the options of filters that are available and match the doctor's recommendations. 

How Are Filters Prescribed?
Types of Filter Lenses

Types of Filter Lenses

There are a few types of lenses which utilize filters.

Fitovers: These are lenses that can go over regular glasses lenses, and are ideal for patients who wear prescription glasses but do not need a medical tint at all times. Additionally, patients who want lenses for low vision as quickly as possible, and those who wear different types of glasses and want an option that works with all of their frames.

Fitover lenses are also often more affordable

Clip-on: Clip-on lenses are also easily removable, but are more fitted for a specific pair of frames, making it hard to use with multiple pairs of glasses.

Plano glasses: Plano glasses are a lightweight, convenient option for patients who do not already wear prescription glasses.

Built In on lens filters: Filters can be ordered for your prescription lens. Another example of filters are escoop glasses that include slight magnification and prisms. 

Dr. McBryar cartoon

Summary

Filter lenses, which can be fit over the glasses you already wear, can be extremely helpful for low vision patients who are having difficulty seeing in certain conditions. While not all filters need to be prescribed, filter purchases should be made based on the advice of a low vision doctor. If you think filters can help you, you can contact Amplify EyeCare Chattanooga at (423) 710 3965 to schedule an appointment for a low vision eye exam.

 

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Testimonials


  • 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.

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