Fish eyes may hold the key to a cure for blindness in humans, the Daily Mail reports.
Researchers at Vanderbilt University have identified a trigger that could reverse age-related macular degeneration, which is the leading cause of vision loss around the world and occurs when the retina becomes damaged.
Zebrafish retinas are considered to be the same as humans', and their regrowth is started by a reduction in a neurotransmitter called GABA.
A drop in GABA, the scientists found, is the trigger for regeneration in a damaged retina. They hope the same method might work for humans.
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