Globally, patients with low vision are estimated at 124 million, while legally blind are 37 million.
Low vision is called the state of reduced visual performance with visual acuity less than 4/10 or visual field less than 60. Legally blind is a patient with vision less than 1/10 or visual field less than 20.
Low vision can be caused by a multitude of medical conditions. Many diseases affect vision negatively and in different ways. For example, chromopathies affect central vision, glaucoma peripheral vision and cataracts cause a general blurring.
The effects and severity will certainly vary from case to case. The most important diseases that lead to low vision are:
If you suffer from Macular Degeneration, Glaucoma, Diabetes, Cataracts or other Eye Diseases and you have Low Vision, which is not improved by any prescription and any pair of glasses then Low Vision Aids (Optical or Electronic) can significantly increase vision your.
In many cases, medical treatment methods are enough to restore vision. However, when medical procedures do not have the desired outcome, vision loss remains a major obstacle in everyday life. Severe vision loss affects a person’s work, independence and psychology far more than the loss of any other sense.
An evolving field of optometry, it deals with the detailed examination of the quantity as well as the quality of residual vision.
State-of-the-art Low Vision Aids can significantly increase vision for special activities, such as watching television, cinema or theatre, reading, writing, recognizing faces, seeing prices on the supermarket, to do his favorite hobbies.
The training of the correct use of visual aids by the patient is an important factor for the successful application of these aids.
As Low Vision Aids we classify any means that can magnify or enhance the contrast of the image we see. Aids may be primarily visual or electronic.
Low vision optical aids include magnifiers, telescopes, prism glasses, loupes and filters. Electronic systems mainly include closed-circuit television (CCTV), computer magnifiers, e-books and complex voice readers.
In any case, the patient should be monitored by an ophthalmologist.