AMD treatment with NeoVista system

Wet AMD occurs when abnormal blood vessels behind the retina start to grow under the macula, where they leak blood and fluid, causing scar tissue to form and vision to become impaired. With wet AMD, vision loss may occur faster and be more noticeable than with dry AMD. The longer the abnormal vessels leak or grow, the more detail vision will be lost. The earlier wet AMD is diagnosed, the better the patients' chance of preserving some or much of their central vision. The first European patients have been treated for wet age-related macular degeneration with NeoVista's Vidion ANV Therapy System, an epimacular brachytherapy device that delivers a single dose of therapeutic radiation, the manufacturer announced in a press release. Stanislao Rizzo, MD, of S. Chiara Hospital, Pisa, Italy, treated...

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Blood test to identify retinopathy in Type 1 Diabetics

A routine blood test may identify juvenile-onset diabetic patients at heightened risk for proliferative retinopathy.In a multivariate analysis of data on 426 people followed over 18 years from Pittsburgh Epidemiology of Diabetes Complications Study, researchers found that each increment of 1 g/dL in hemoglobin was associated with a linear 29% increase in risk for retinopathy in men with type 1 diabetes (95% CI 8% to 54%), and a quadratic 10% risk increase in women (95% CI 0% to 20%). Notably, only diastolic pressure and glycated hemoglobin were predictive of retinopathy in multivariate analysis for both sexes, while systolic pressure predicted retinopathy in women (HR 1.03 per mm Hg), but not in men.The researchers noted that the difference...

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Combined drug to treat nasal and ocular allergies

Image by aarrgh via FlickrA study published in the Annals of Allergy, Asthma, and Immunology and presented at an allergy conference, showed that the combination of azelastine (Astelin or Astepro) and fluticasone propionate (Flonase) gave significantly better nasal symptom relief than placebo or either drug alone. Azelastine is an antihistamine and mast cell stabilizer that is also sold as eye drops for allergic conjunctivitis under another brand name. Fluticasone is a synthetic glucosteroid that is used as an anti-inflammatory.Investigators enrolled 610 patients with moderate-to-severe allergic rhinitis, randomly assigning them to get either azelastine, fluticasone, the combination nasal spray, or a placebo nasal spray twice a day for two...

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Role of dietary fat in AMD

MedPage Today reported that, according to a study published in the Archives of Ophthalmology, " fat-filled diet may put younger women at risk for future age-related macular degeneration (AMD).After analyzing dietary fat intake measured in 1,787 women, researchers found that women younger than 75 with the highest total fat intake (about 43% of daily calories) had 70% higher odds of intermediate AMD than those in the lowest quintile (21% fat calories). Notably, photographic assessment for AMD revealed that 4% of the women had intermediate disease -- defined by extensive drusen deposits on the retina or optic nerve head as well as pigmentary abnormalities.But as in some prior studies, macular degeneration risk rose with omega-6 intake (OR 2.0...

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Researchers develop photochromic contact lenses

Image by StarvingFox via FlickrMIT's Technology Review reports Jackie Ying, director of the Institute for Bioengineering and Nanotechnology in Singapore as having developed an UV-responsive, or photochromic, lenses that darken when exposed to ultraviolet light, protecting the eyes against the sun's damaging rays, and return to normal in UV's absence. The lenses contain a novel polymer laced with an intricate network of nano-sized tunnels that can be filled with dyes. Early studies have demonstrated that the technology performs faster than the transition sunglasses on the market today. The investigators hope to have photochromic contact lenses commercially available within a year.Nanotechnology refers to the manipulation of matter at the molecular...

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Cataract surgery may not speed progression of AMD

Image via WikipediaAccording to a study published in the Nov. issue of the journal Archives of Ophthalmology, cataract surgery doesn't appear to speed the progression of age-related macular degeneration (AMD).Investigators examined 71 eyes of patients with non-neovascular AMD before, and at one week and one year after they had cataract surgery. They discovered progression to neovascular AMD occurred in 4.6 percent of the eyes between one week and one year after cataract surgery, compared with three percent for cataract-free eyes. Medscape reported that an accompanying editorial by Barbara E. K. Klein, MD, MPH pointed out that several reports have shown an association between cataract surgery and AMD since the late 1980s, and that...

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HbA1c better predictor retinopathy than FPG in US population

According to a study published in Diabetes Care, glycated hemoglobin (HbA1c) is a better predictor of retinopathy prevalence in the general population than fasting plasma glucose (FPG). Diabetes is a disease that occurs when the pancreas does not secrete enough insulin or the body is unable to process it properly. Insulin is the hormone that regulates the level of sugar (glucose) in the blood. Diabetes can affect children and adults. Patients with diabetes are more likely to develop eye problems such as cataract or glaucoma., but the main threat to vision is its effect on the retina.Researchers analyzed data from 1,066 people, including values for HbA1c, FPG, and 45 degree color digital retinal images. After using...

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A novel, "dual optic" accommodating intraocular lens improved intermediate distance vision and contrast sensitivity under low light conditions compared with some multifocal lenses, researchers said.The findings, reported in two studies from the same research group here at the American Academy of Ophthalmology meeting, suggest that the new generation of lens will hold functional advantages for patients undergoing cataract surgery.First generation monofocal lenses were often used to create "bifocal" vision, with the lens in one eye set for distance vision and the other set for near objects. To overcome the poor depth perception this created, the next generation of multifocal lenses allowed both eyes simultaneously to focus on far or near objects...

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Vegetable intake during pregnancy may prevent diabetes in unborn child

USA Today reports that, according to experts, an increasing number of children are being diagnosed with both type 1 and type 2 diabetes. According to Ed Kraus, an associate professor at Chicago Kent Law School who works with the American Diabetes Association (ADA), many schools are...falling short in coping with these students, particularly since 30% of schools have a part-time nurse, and 25% have no nurse. Now, the ADA has a Safe at School Campaign to help families and schools create support plans, useful because everyone from cafeteria workers and bus drivers to gym teachers and the principal should know about a child's medical condition and what to do in case of an emergency, endocrinologist Frederick Schwenk, MD, says.Diabetes risk in children...

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Femtosecond-pulse lasers appear promising for cataract surgery

Image via WikipediaFemtosecond-pulse lasers similar to those used for LASIK may take over manual incision and phacoemulsification in cataract surgery.Researchers from the Bascom Palmer Eye Institute said that femtosecond laser incisions achieved perfect diameter accuracy in 100% of cases, while only 10% of surgeons' manual cuts were within 0.25 mm error. Investigators compared 60 manual and 60 LenSx femtosecond laser cataract surgeries done at the same center, and found that laser capsulotomy size, shape, and reproducibility were all statistically significantly better than manual capsulotomy. window.onload = function () { var q = (document.URL); document.getElementById("mptplayer").src += q; }...

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