HIV drugs bring hope for improving vision impairment

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Researchers have identified a group of drugs that may address a leading cause of vision loss - after making an unexpected discovery that overturns a fundamental belief about DNA.

The drugs, known as Nucleoside Reverse Transcriptase Inhibitors, or NRTIs, are commonly used to treat HIV.

The new discovery suggests that they may be useful against dry macular degeneration as well, even though a virus does not cause that condition. The study is published in PNAS.

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