Eye Conditions

A study slated to appear in the peer-reviewed American Journal of Ophthalmology found that cataract surgery does not appear to worsen pre-existing wet AMD (age-related macular degeneration). However, cataracts surgery appears to slightly change the anatomy of the eye, which might make AMD patients more susceptible to cystoid macular edema (a side effect of cataracts surgery) and choroidal neovascularization.

Cataract surgery is a common surgery, with a very high success rate and low side effects. Replacing the clouded lens with an artificial intraocular lens (IOL) allows more light to reach the retina, which significantly improves vision in cataracts patients. Cataracts frequently appear in the eyes of individuals as they age.
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Future treatments for macular degeneration (AMD), Stargardt’s disease, and retinitis pigmentosa may include bone marrow stem cell injections, if a new line of eye research pans out. A preliminary pilot study on six subjects with one of several ischemic eye diseases found that most patients had vision improvement after receiving injections of their own bone marrow.

The purpose of the study was to find out if there were any adverse side effects and to test for vision improvement. The only significant negative side effect was some pain after bone marrow
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Scientists have partially restored sight in blind mice using a protein to repair damaged cells in the retina. These experiments may ultimately lead to treatments that restore sight in patients with progressive degenerative retinal diseases such as diabetic retinopathy, retinitis pigmentosa and macular degeneration.

The research at the University of Bern in Switzerland and the University of Göttingen in Germany used “optogenetics,” which involves utilizing light to control neurons. They introduced new light-sensing proteins called Opto-mGluR6 into the eye. In essence, this turned the old cells into photoreceptors. These cells were then able to process
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Age-related macular degeneration (AMD) has been linked to supplementing more than 800 mg of calcium per day. The link was strongest in the elderly, who suffer from AMD the most. The research was a cross-sectional study of National Health and Nutrition Examination Survey (NHANES) data. The RDA for calcium (CA) for adults is 1,000 mg; 1200 mg for women over 50. However, changes to the recommended total daily intake of CA have not been suggested.

This research was conducted at the University of California, SF, and appeared in JAMA Ophthalmology April 2015. It was based on surveys of calcium supplementation and AMD. In the past, the researchers had a similar finding with
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Retinitis pigmentosa (RP) is an eye disease that can cause serious vision loss, and it is usually inherited. Its symptoms can begin at any age and include reduced peripheral vision (tunnel vision), night blindness, difficulty adapting to changes in light levels, and eventually, blindness. RP is a type of retinal dystrophy that results in progressive degeneration of rod photoreceptor cells. While this disease is degenerative, much can be done to reduce or delay its effects.

How Retinitis Pigmentosa Is Diagnosed

Any changes in vision should be reported to an eye doctor immediately. Initially, RP patients may notice gradual changes in peripheral vision — the vision to the sides, top and bottom of the field of vision. Any symptoms
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Medical marijuana, or cannabis, is being legalized in more and more American states. For more than 40 years, the effect of medical marijuana on glaucoma has been studied. As cannabis becomes more accessible — and legal — glaucoma patients are becoming more interested in how this drug could help with their condition.

Medical marijuana has been shown in studies to decrease intraocular pressure (IOP) in glaucoma patients. The National Eye Institute found that although medical marijuana lowered IOP after taking the drug, the pressure is decreased for only 3 to 4 hours. This is considered
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Several different types of glaucoma are the leading cause of blindness in the US¹, and yet many cases of glaucoma begin without symptoms. Half of the 3 million-plus Americans who have glaucoma have been diagnosed.² Glaucoma can affect anyone, but it is especially prevalent in persons over age 60. Everyone should have regular eye exams throughout their lives to screen for glaucoma, especially a dilated eye exam. Glaucoma tends to run in families, but anyone can get it.
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People in developing countries can face huge hurdles getting cataracts correctly diagnosed and treated. A new smartphone app called “Vula” helps diagnose cataracts using a photograph. A routine and very short cataract surgery can then be scheduled. This app is helping overcome barriers to treating this very common source of vision impairment and blindness.

Cataracts are a film that form on the lens of the
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With cataracts affecting nearly 22 million Americans, it’s not surprising that most of us know people who have had cataract surgery. We may even be contemplating cataract surgery for ourselves. Since cataracts are almost never a medical emergency, you should feel entirely comfortable taking the time to learn more about cataracts and explore all your options.

What is a Cataract?

A cataract is simply a spot on the lens of the eye that you cannot readily see through. These spots are made up of clumps of normal eye protein and generally form slowly over time. Although most cataracts are related to aging, it is also possible for cataracts
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A cutting-edge project has produced a vast “road map” for proteins in the retinal pigment epithelium (RPE) and choroid of the eye. The project, conducted by recent grantees of a BrightFocus grant, mapped the locations and quantities of 4,403 different eye proteins. This research could be invaluable to further understanding of conditions such as age-related macular degeneration (AMD). 
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