retina

The retina’s rods and cones allow us to see. But although scientists have an idea of what makes rods perform and flourish, they’ve been somewhat in the dark regarding what keeps cones working and thriving. Now, School of Medicine researchers led by Thomas A. Ferguson, PhD, believe they’re closer to the answer and that their findings may one day help preserve vision in patients with age-related macular degeneration and other retinal diseases.

Studying mice, scientists at Washington University School of Medicine in St. Louis have identified a neural circuit in the retina that carries signals enabling the eye to detect movement. The finding could help in efforts to build artificial retinas for people who have suffered vision loss.

M. Gilbert Grand, MD, clinical professor of ophthalmology and visual sciences, has been elected president of The Macula Society.

Science textbooks say we can’t see infrared light. Like X-rays and radio waves, infrared light waves are longer than the light waves in the visual spectrum. But an international team of researchers co-led by Frans Vinberg, PhD, (left) and Vladimir J. Kefalov, PhD, has found that under certain conditions, the retina can sense infrared light after all.

Mice missing two important proteins of the vascular system develop normally and appear healthy in adulthood, as long as they are not injured in some way. If they are, their wounds don’t heal properly, a new study shows. The research has possible implications for treating diseases involving abnormal blood vessel growth, including in the skin and eye.

Rajendra S. Apte, MD, PhD, the Paul A. Cibis Distinguished Professor of Ophthalmology & Visual Sciences, is one of three recipients of the 2014 Pfizer Ophthalmics Carl Camras Translational Research Award.

New findings from the St. Jude Children’s Research Hospital – Washington University Pediatric Cancer Genome Project have helped identify the mechanism that makes the childhood eye tumor retinoblastoma so aggressive.

Resveratrol — found in red wine, grapes, blueberries, peanuts and other plants — stops out-of-control blood vessel growth in the eye, according to vision researchers at Washington University School of Medicine in St. Louis. The discovery has implications for preserving vision in blinding eye diseases such as diabetic retinopathy and age-related macular degeneration.

Researchers at the School of Medicine have peered deep into the eye of the chicken and found a masterpiece of biological design. They plan follow-up studies that could eventually provide helpful insights for scientists seeking to use stem cell and other techniques to treat the nearly 200 genetic disorders that can cause various forms of blindness.

Scientists have long known that cells in the retina called photoreceptors are involved in how vision can adapt to darkness, but a study from investigators at Washington University School of Medicine in St. Louis and Boston University School of Medicine has uncovered a new pathway in the retina that allows the cells to adapt following exposure to bright light. The discovery could help scientists better understand human diseases that affect the retina, including age-related macular degeneration, the leading cause of blindness in Americans over the age of 50.