Low vision refers to loss of sight that cannot be rectified with regular prescription eyeglasses, contact lenses, surgical or any medical management. A person with low vision cannot read the smaller letters beyond the 6/18 line, however, it can be managed with special low-vision aids like magnifying glasses.
What causes it?
The most common causes of low vision include Glaucoma, Retinitis Pigmentosa, Age-Related Macular Degeneration, Diabetic Retinopathy, Retinal and corneal dystrophies.
How is it tested & diagnosed?
Low vision is tested through a comprehensive eye test and low vision assessment, followed by a trial of specific low vision aids. Lifestyle modifications and improvements in lighting conditions to improve visual performance and comfort are recommended alongside.
What do low vision aids look like?
- Telescopic glasses for far viewing
- Lenses that filter light
- Reading glasses with prisms
- Handheld and freestanding magnifiers for reading
- Video magnification for reading
- Reading lamps to enhance visual comfort while reading or performing near activities
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