London: A single jab can now prevent people from losing their vision, thanks to researchers at Trinity College Dublin, Ireland, who have developed a new method to inject drug into the blood by weakening the otherwise impermeable blood-retina barrier.The blood-retina barrier normally prevents molecules in the blood from reaching the retina.Presently, drugs to treat age-related macular degeneration, the leading cause of blindness in the west, have to be injected into the eyeball once a month, which can cause eye infections and even blindness in 1 out of 50 injections.
Although the existing drugs to treat age-related macular degeneration would be too big to pass through the barrier, there are other molecules in development that are small enough. Some of these could be taken orally when the barrier goes down. The study has been published in Proceedings of the National Academy of Sciences. ANI
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