Exercise can slow or prevent vision loss - Study

Exercise can slow or prevent the development of macular degeneration and may benefit other common causes of vision loss, such as glaucoma and diabetic retinopathy, new research suggests. The new study from the University of Virginia School of Medicine found that exercise reduced the harmful overgrowth of blood vessels in the eyes of lab mice by up to 45%. This tangle of blood vessels is a key contributor to macular degeneration and several other eye diseases. The study represents the first experimental evidence showing that exercise can reduce the severity of macular degeneration, a leading cause of vision loss, the scientists report. Ten million Americans are estimated to have the condition.

The Benefits of Exercise

Enticingly, the research found that the bar for receiving the benefits from exercise was relatively low-more exercise didn't mean more benefit. An initial test comparing mice that voluntarily exercised versus those that did not found that exercise reduced the blood vessel overgrowth by 45%. A second test, to confirm the findings, found a reduction of 32%. The scientists aren't certain exactly how exercise is preventing the blood vessel overgrowth. There could be a variety of factors at play, they say, including increased blood flow to the eyes. The researchers already have submitted grant proposals in hopes of obtaining funding to pursue their findings further.

Article source: https://www.sciencedaily.com/releases/2020/07/200701100025.htm

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