Feature Channels: Vision

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Carrots get all the attention for eye health, but there are several other foods and nutrients that can help.

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Researchers at Indiana University School of Medicine are working to restore vision loss caused by diabetic retinopathy with stem cell treatments.

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The lack of very long chain fatty acids does not cause blindness in children with the incurable eye disease known as Stargardt type 3 retinal degeneration.

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As the federal government assesses an $85 billion reduction in its 2013 budget, an included 2 percent Medicare cut will hurt beneficiaries who need medical eye care, according to ophthalmologists – medical doctors who specialize in the diagnosis, medical and surgical treatment of eye disease. In a survey conducted by the American Academy of Ophthalmology, approximately 72 percent of responding member physicians predicted they would be forced to make decisions that will negatively affect the ability of their Medicare patients to receive the highest quality of medical care.

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A professor from Case Western Reserve University School of Medicine is one of the lead authors of a study identifying seven new regions of the human genome that are associated with increased risk of age-related macular degeneration (AMD), a leading cause of blindness among older adults.

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A contact lens technique called overnight orthokeratology (OK) brings rapid improvement in vision for nearsighted patients. Now a new study shows that OK treatment works mainly by flattening the front of the cornea, reports a recent study, “Posterior Corneal Shape Changes in Myopic Overnight Orthokeratology”, appearing in the March issue of Optometry and Vision Science, official journal of the American Academy of Optometry. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health.

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Researchers at the Technion-Israel Institute of Technology are testing the power of holography to artificially stimulate cells in the eye, with hopes of developing a new strategy for bionic vision restoration.

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Some of the last days of winter can be among the worst for your eyes. Winter may be slowly giving way to spring, but the remaining cold days of the season can cause plenty of trouble for the eyes—trouble that is largely avoidable, says a Vanderbilt Eye Institute ophthalmologist.

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Beloved children’s book character likely lost sight from viral meningoencephalitis, research highlights how tales of disease influence perception of disease.

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Visual symptoms and abnormalities occur at high rates in people with traumatic brain injury (TBI)—including Iraq and Afghanistan War veterans with blast-related TBI, reports a study, “Abnormal Fixation in Individuals with AMD when Viewing an Image of a Face”, in the February issue of Optometry and Vision Science, official journal of the American Academy of Optometry. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health.

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Doctors may one day treat some forms of blindness by altering the genetic program of the light-sensing cells of the eye, according to scientists at Washington University School of Medicine in St. Louis.

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Independent clinical trials, including one conducted at the Scheie Eye Institute at the Perelman School of Medicine, have reported safety and efficacy for Leber congenital amaurosis (LCA), a congenital form of blindness caused by mutations in a gene (RPE65) required for recycling vitamin A in the retina. Now, new research from the Scheie Eye Institute, published this week in the Proceedings of the National Academy of Sciences, finds that gene therapy for LCA shows enduring improvement in vision but also advancing degeneration of affected retinal cells, both in LCA patients and animal models of the same condition.

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Researchers at The Ohio State University are developing a new glaucoma test that would catch the blindness-causing disease earlier and more accurately than current tests that rely on human input.

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Melanomas that develop in the eye often are fatal. Now, scientists at Washington University School of Medicine in St. Louis report they have identified a mutated gene in melanoma tumors of the eye that appears to predict a good outcome.

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A new Investigative Ophthalmology & Visual Science (IOVS) article reveals that increasingly aggressive therapies that block VEGF could cause damage in treating eye diseases. Scientists discovered inhibiting anti-VEGF might have a harmful effect on the tissue responsible for producing the fluid that bathes the eye, medically termed the ciliary body.

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We rely on our visual system more heavily than previously thought in determining the causality of events. A team of researchers has shown that, in making judgments about causality, we don’t always need to use cognitive reasoning. In some cases, our visual brain—the brain areas that process what the eyes sense—can make these judgments rapidly and automatically.

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Abnormalities of eye movement and fixation may contribute to difficulty in perceiving and recognizing faces among older adults with age-related macular degeneration (AMD), suggests a study “Abnormal Fixation in Individuals with AMD when Viewing an Image of a Face” appearing in the January issue of Optometry and Vision Science, official journal of the American Academy of Optometry. The journal is published by Lippincott Williams & Wilkins, a part of Wolters Kluwer Health.

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A new study finds that certain changes in blood vessels in the eye’s retina can be an early warning that a person is at increased risk for glaucoma, an eye disease that slowly robs people of their peripheral vision. Using diagnostic photos and other data from the Australian Blue Mountains Eye Study, the researchers showed that patients who had abnormally narrow retinal arteries when the study began were also those who were most likely to have glaucoma at its 10-year end point. If confirmed by future research, this finding could give ophthalmologists a new way to identify and treat those who are most vulnerable to vision loss from glaucoma. The study was recently published online by Ophthalmology, the journal of the American Academy of Ophthalmology.

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Two recent experimental treatments — one involving skin-derived induced pluripotent stem (iPS) cell grafts, the other gene therapy — have been shown to produce long-term improvement in visual function in mouse models of retinitis pigmentosa (RP), according to the Columbia University Medical Center scientists who led the studies. At present, there is no cure for RP, the most common form of inherited blindness.

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People who regularly took aspirin 10 years prior to examination had a small but statistically significant increase in the risk of a subtype of age-related macular degeneration (AMD), according to a study by University of Wisconsin-Madison researchers.