To determine the prevalence of visual impairment and blindness in underserved Iranian villages and to identify the most common cause of visual impairment and blindness. Multistage cluster sampling was ...

Certain blind individuals have the ability to use echoes from tongue or finger clicks to recognize objects in the distance, and use echolocation as a replacement for vision. Research shows ...

Five innovations harness new technologies for people with visual impairment, blindness Date: February 6, 2017 Source: NIH, National Eye Institute (NEI) Summary: New technologies and tools are in the ...

Seven years ago, Jason Esterhuizen was in a horrific car crash that destroyed his eyes, plunging him into total darkness. Today, he’s regained visual perception and more independence, thanks to an ...

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People born without sight apparently process math in their visual cortex. The findings come from a newly published Johns Hopkins study, and add support to the idea that when it comes to "nature versus ...

A new study claims that early childhood experiences can change a person's brain structure long-term and in irreversible ways - even if the brain heals. Professor Cordula Hoelig, a psychologist and ...