eyeHow – What to Know About Low Vision Filters and Tints

First of all it is important to know that about 135 million people around the world have been diagnosed with low vision. That is a big number!

Filters and tints can help a lot of them.

Low Vision absorptive filters are specially developed tints designed to enhance vision for those that experience low visual acuity due to light sensitivity and/or inadequate levels of contrast. The inability of the eyes to deliver the appropriate level of contrast can often make reading, driving and other daily activities difficult. Low Vision filters help to manage the transmission levels of various light waves, which helps to improve the vision of those with various low vision conditions. For instance, by filtering out 100% of the blue light that reaches the eyes, low vision patients can achieve a greater level of contrast, which improves object definition.

Low Vision absorptive filters are easily available from eyewear companies such as Live Eyewear. For example,  Cocoons Low Vision absorptive filters are available in four specific tints, Boysenberry, Lemon, Orange, and Hazelnut, and are proven to increase visual acuity when used in conjunction with various visual impairments caused by eye diseases such as Glaucoma or Age Related Macular Degeneration.

Boysenberry:

  • General purpose absorptive filter
  • Filter allows 15% visible light transmission
  • 100% UVA/UVB protection
  • Blocks 90% of blue light
  • Blocks visible light up to 400 nm

 Hazelnut/Amber:

  • Reduces glare
  • Provides heightened contrast
  • Filter allows 18% visible light transmission
  • 100% UVA/UVB protection
  • Blocks 98% of blue light
  • Blocks visible light up to 410 nm

 Lemon:

  • Maximizes brightness
  • Enhances contrast in low light
  • Improve visual acuity
  • Filter allows 82% light transmission
  • 100% UVA/UVB protection
  • Blocks 40% of blue light
  • Blocks visible light up to 470 nm

Orange:

  • Maximizes contrast enhancement
  • Improve object definition and clarity
  • Filter allows 34% light transmission
  • 100% UVA/UVB protection
  • Blocks 100% of blue light
  • Blocks visible light up to 520 nm

What tints are best for Low Vision Aids?

Each low vision absorptive filter is designed with the goal of transmitting a specific range or percentage of light waves. The most common absorptive filter tints currently on the market are various shades of orange, amber, yellow, plum and smoke. In many cases, more than one filter may be required per case in order to meet the needs of changing light conditions and activities. An eyecare professional or physician should help determine the low vision absorptive filter that will best suit a patient’s particular eye condition or visual impairment.

 

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