In many cases, medical treatment methods are enough to restore vision. However, sometimes the medical interventions do not have the desired outcome and the vision loss remains a major obstacle in everyday life. The vision impairment affects the individuals work, independence and psychology far more than the reduction of any other sense.
An evolving field of optometry, deals with the detailed examination of the quantity and quality of residual vision.
As a low vision aid we characterize each instrument that can magnify or enhance the contrast of the image that we see. These devices can be primarily visually or electronically. In optical low vision aids including magnifiers, telescopes systems, prismatic glasses, the loops and filters. In electronic systems include mainly closed circuit television (CCTV), magnification programs for computers, electronic books and reading complex voice.
The above can significantly increase the vision for specific occupations, such as seeing a television, cinema or theatre, reading, writing, recognizing faces, seeing the prices at the supermarket, doing his favouritehobby.
The educationof proper use of visual aids from the patient is the most important factor for successful implementation of these devices.
In each case the patient should be monitored by an ophthalmologist.