It sounds difficult to believe, but Viagra could restore sight to the blind. Tests show the anti-impotence drug may stop further loss of vision for patients being robbed of their sight – and could even repair damage that’s already been done. A two-year trial led by scientists at Columbia University in New York suggests the little blue pills could stop age-related macular degeneration, or AMD, in its tracks.
These blood vessels leak fluid, causing scar tissue to form and destroying vision in the centre of the eye – making it difficult to recognise faces, read or watch television.
Recent research has found the condition is partly caused by reduced blood flow to the choroid, a vital layer of tissue that sits in front of the retina – and some small earlier studies had suggested Viagra can improve blood flow to this tissue. MORE
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