http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Slowing down the aggregation or "clumping" of vitamin A in the eye may help prevent vision loss caused by macular degeneration, research from Columbia University Medical Center has found. http://medicalxpress.com/news/2011-05-age-related-macular-degeneration.html Ophthalmology Wed, 18 May 2011 11:00:23 EST news224935203 Elevated pressure inside the eye, cornea thinning, and visual field loss are all markers that glaucoma may progress, according to a report in the May issue of Archives of Ophthalmology. http://medicalxpress.com/news/2011-05-factors-glaucoma.html Diseases, Conditions, Syndromes Mon, 09 May 2011 17:06:59 EST news224179593