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Don't turn off the light!
Email: Tudor Toma - t.toma@ic.ac.uk News from The Scientist 2002, 3(1):20020701-03
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Diabetic retinopathy is thought to be triggered by the high oxygen consumption of retinal rod receptors during dark adaptation, combined with impaired capillary function, but the effect of the light-dark cycle in this process has been unclear. In 29 June The Lancet, Neville Drasdo and colleagues at Cardiff University, UK, shows that night-time illumination could reduce retinal hypoxia and may help prevent the onset of diabetic retinopathy (Lancet 2002, 359:2251-2253).
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