Scientists said Wednesday they have restored sight in mice using a “milestone” treatment that returns cells to a more youthful state and could one day help treat glaucoma and other age-related diseases.

The process offers the tantalising possibility of effectively turning back time at the cellular level, helping cells recover the ability to heal damage caused by injury, disease and age.

“I’m excited about being able to rejuvenate organs and tissues that fail due to ageing and disease, especially where there are no effective treatments, such as dementia,” senior author of the study David Sinclair told AFP.

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“We hope to treat glaucoma in human patients (at the trial stage) in two years,” added Sinclair, a professor of genetics at Harvard Medical School.

Read more at France24.