Seeing Red? Long-term vision problems linked to Viagra

Researchers have found that a high dose of Viagra (sildenafil citrate) can cause retinal damage on a cellular level resulting in color vision problems. Excessive use of the drug could result in long-term vision problems that are potentially irreversible. Study findings were published in the fall issue of Retinal Cases. A study was conducted based […]

Dangers of red eye relieving eyedrops

Most over-the-counter eyedrops used for treating red eyes, contain tetrahydrozoline which is FDA approved for use in the eyes. Some of the brands that contain the chemical are Visine, Murine Plus and Clarine. The labels specifically state that they are for external use only and to keep them out of the reach of children. However, […]

No More Eye Injections for Wet Macular Degeneration?

Genetech has formulated Lucentis’ active ingredient into a refillable eye implant that delivers the medication continuously into the eyes of wet macular degeneration patients. Known as the Port Delivery System, the implantable drug has shown promising results in the second phase of clinical studies. The Port Delivery System is slightly bigger than a grain of […]

Vision loss reversed with new stem cell therapy

A Phase 1 Clinical study of an experimental stem cell treatment for the web form of macular degeneration has resulted in two people having their vision loss reversed and their vision improving to being able to read with reading glasses. The study was published in Nature Biotechnology. Doctors used a surgical tool specifically designed for […]

Google “sees” heart attack risk in your eyes

New artificial intelligence (AI) developed by Google has the ability to predict whether a person has high blood pressure or is at a risk of heart attack or stroke. While the algorithms didn’t outperform conventional medical testing such as blood tests, the software does offer the potential of allowing doctors to provide a tool that […]

Study compares Lucentis regimens for wet AMD

The treat-and-extend (TE) protocol of Lucentis (ranibizumab) is just as effective as a monthly regimen of ranibizumab when looking at increasing visual acuity in patients with neovascular age-related macular degeneration (AMD). The 12-month study was conducted in Portugal and led by Rufino Silvia, MD, PhD and involved 650 wet AMD patients aged 50 and older. […]

Taking a look at diabetic retinopathy

Diabetics can develop an eye disease known as diabetic retinopathy, which is caused by damage to blood vessels in the retina due to high blood sugar. The damaged blood vessels either swell and leak or they close up preventing blood from passing through. In some case, abnormal blood vessels grown on the retina. Any of […]

Lipid mediators may stop progress of glaucoma

Glaucoma is the second-leading cause of blindness that affects about 80 million people around the world and has no cure. New research takes a look at a naturally occurring molecules known as lipid mediators as a treatment that may potentially stop the progress of glaucoma. Researchers at the University of California-Berkeley used both rats and […]

FDA approves glucose monitoring system

The Food and Drug Administration recently approved the FreeStyle Libre Flash Glucose Monitoring System to be sold in the United States. The Libre is manufactured by Abbott and is currently only available overseas. The system allows patients to view blood sugar every minute of the day without pricking a finger. The device will be available […]

Effects of blue light exposure reduced with lutein and zeaxanthin

Benefits of lutein and zeaxanthin supplementation on blue-absorbing macular pigment, sleep quality and visual performance The results of the study were published in Foods. The macular carotenoids, lutein and zeaxanthin isomers, are known as high-energy blue light filters. Blue light penetrates deep into the eye and can cause the formation of free radicals. In the […]