Volume : IV, Issue : IV, April - 2015

Effectiveness of Low cost Devices for Evaluation and Training of Eccentric Viewing

Dr. G. Victoria Naomi, S. Suganya

Abstract :

Low vision is a bilateral impairment to vision that significantly impairs the functioning of the person and cannot

be adequately corrected with medical, surgical, therapy, conventional eye wear or contact lenses. Low vision is not
blindness, which is the absence of useful vision. When the macula dies as a result of macular degeneration, the tissue dies so a spot on the
retina becomes totally insensitive to light. The fovea right in the middle of the macula is only 20/20 vision in a normal eye. Since the fovea and
macula are dead in macular degeneration pupils, when the eye is focused directly on the object to be seen, the light entering the eye is being
focused on the dead tissue. Consequently, nothing is seen. By looking to the right or left of the object, so that the light entering the eye is focused
on the retinal tissue right beside the macula but not directly on it, allows the peripheral vision to come into play. Hence training in eccentric
viewing can prove effective to be discrete focus of fixation which utilizes intact retina adjacent to the retinal pathology. Central field loss requires utilization of peripheral vision. This study was an attempt to measure the central vision loss and training to view eccentrically using
low cost devices and techniques. The study results revealed that the low cost devices proved the efficacy for evaluation of Eccentric Viewing
and training in the use of peripheral vision resulting in improved reading speed.

Keywords :

Article: Download PDF   DOI : 10.36106/ijsr  

Cite This Article:

Dr. G. Victoria Naomi, S. Suganya Effectiveness of Low cost Devices for Evaluation and Training of Eccentric Viewing International Journal of Scientific Research, Vol : 4, Issue : 4 April 2015


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