Gene Therapy Cures Color-Blind Monkeys
Two naturally color-blind monkeys are now able to see in full color after being treated via gene therapy. The researchers injected a gene-carrying virus into the monkeys’ eyes. While, after treatment, their vision did not reach that of monkeys born with normal genes, in about 20 weeks they attained full color vision and have shown no harmful side effects. The researchers suggested that difference in treated versus untreated monkeys may point toward the need for improvement in developing the treatment. Researchers used the same test for color-blindness as used with very young children, the Cambridge Color Test. Monkeys were rewarded with grape juice for tracing the pattern of shaped on a touch screen when they saw them. Fore more information, see National Geographic News.
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