cis-retinal, an analog of vitamin A, can significantly improve reduced visual function in mice with diabetes.The research, which appears in The American Journal of Pathology, may help scientists develop effective treatments for visual loss associated with early diabetic retinopathy.According to the National Eye Institute, diabetic retinopathy is an eye condition that can result in the loss of vision for people with diabetes.In its mid to late stages, the condition occurs due to damage to the blood vessels in a person’s retina.
People with diabetes are at risk of having too much sugar in their blood. The sugar can cause blood vessels to block, resulting in bleeding.