London: The deaf have better vision than those who can hear. The reason, retinal owned deaf patient gave a sharper vision.
The scientists found that the retinas of people born with the condition of deaf, or who lose their hearing in early life, its development is different from those in people who can hear.
This gives them a wider peripheral vision, which allows them to see more and thus increase their awareness about their environment and any potential harm.
Researchers at the University of Sheffield found that the retinal nerve cells that are distributed differently to those who are deaf and those who can hear, on Friday (3 / 6).
This makes them prioritize what they can see them on sight around the far, close to their ears.
While previous studies have found an association between deafness and increased vision, scientists have thought the visual cortex in the brain are responsible, not the retina.
Working on behalf of the Royal National Institute for Deaf People, Sheffield researchers using eye coherence tomography for retina scan study participants.
Scientists dilate the pupil participants shortly before scanning their retinas. They also measured their visual field in both eyes to compare with retina scans.
The results, published in the journal PLoS ONE, noted a significant correlation between changes in the distribution of the retina at the deaf and these effects extend their peripheral vision.
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