In the initial stages, people with diabetic retinopathy may not notice their vision changing. Diabetics sometimes experience rapid changes in blood sugar that can temporarily cause blurry vision even when retinopathy is not present. If a person notices a few specks or spots floating in his visual field, this may mean he has developed proliferative diabetic retinopathy, the growth of abnormal new blood vessels on the retina and optic nerve. High blood sugar levels have been linked in studies to retinal blood vessel abnormalities. Blurred vision may occur when the macula--the small area at the center of the retina--swells as it fills with fluid that has leaked from retinal blood vessels. Because damage to the eye often develops slowly, early detection of diabetes and control of blood sugar through diet and medications can make a crucial difference in saving vision.
Effective diabetic retinopathy treatments include laser photocoagulation for early to moderate stages and a microsurgery called vitrectomy for repair of eyes with extensive damage. Injectable and oral medications that act on abnormal blood vessels to control diabetic retinopathy before vision loss occurs are now in development. Early detection would be key to the effectiveness of these treatments, also.
Scientists have for the first time looked deep into the protein structure that may determine our vision - and discovered that it is much more dynamic than previously thought.
Vision changes are an inevitable part of aging, but why are some more susceptible to age-related eye diseases and why do some individuals experience more severe decline than others?
Macrophages, also known as scavenger cells, are part of our immune system. They destroy invading pathogens and are found in the organs and the bloodstream.
A group of scientists mapped over 6,000 proteins found in various cell types within the eye using a few drops of eye fluid taken through surgery. Researchers reported that a proteomic clock with an AI model is designed to predict a fit person’s age based on their protein profile.
UT Southwestern Medical Center researchers have identified a gene called Lipe that appears to be pivotal to retinal health, with mutations spurring immune activation and retinal degeneration.
Insufficient oxygen to an area like the heart or legs, called hypoxia, is a cue to our bodies to make more blood vessels, and scientists have found some unusual partners are key to making that happen.
A ubiquitous protein called sigma 1 receptor, which is known to protect cells from stress, appears key to the function and survival of the neurons most impacted by glaucoma, scientists report.
AZoLifeSciences speaks to Dr. Raymond Wong about his latest research into eye health and we could potentially 'switch on' sight using gene therapy.
Scientists have created a new formulation based on regulatory T-cell exosomes (rEXS) to administer vascular endothelial growth factor (VEGF) antibodies.
Artificial intelligence can already scan images of the eye to assess patients for diabetic retinopathy, a leading cause of vision loss, and to find evidence of strokes on brain CT scans.
In a quest to find the genetic factors that are fundamental to diabetic retinopathy, scientists from the University of Illinois Chicago (UIC) have also discovered a new method that can be employed as a template to investigate other types of diseases.
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