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Vision loss or visual loss is the absence of vision where it existed before, which can happen either acutely (i.e. abruptly) or chronically (i.e. over a long period of time). Ranges of vision lossVarious scales have been developed to describe the extent of vision and vision loss based on visual acuity. Early editions of the World Health Organization's ICD described a simple distinction between "legally sighted" and "legally blind". The ICD-9 released in 1979 introduced the smallest continuous scale which consisted of three tiers: normal vision, low vision, and blindness. Acute visual lossAcute visual loss may be dramatic in presentation. It may be caused by media opacities, retinal disease, optic nerve disease, visual pathway disorders, or functional disorders, or it may be in fact an acute discovery of chronic visual loss. From Wikipedia under the
GNU Free Documentation License  medicinenet.com 109px x 150px | 6.90kB [source page] Title Brain Pressure More Likely to Cause Vision Loss in Men Category Health News Created 10 16 2008 2 00 00 AM Last Editorial Review 10 16 2008  safety.fhwa.dot.gov 255px x 400px | 106.90kB [source page] By 2010 expect there to be 20 million visually impaired persons over age 45 Variations in Vision Loss Slide 3 Slide 4 Slide 5  afb.org 337px x 600px | 44.80kB [source page] January 30 and February 1 2007 The margin of error for the study is + 3 1 at the 95th percentile confidence interval Major Findings Attitudes About Blindness Severe Vision Loss From Yahoo Image Search: "vision loss"  news.google.com DesMoinesRegister.com Not every patient needs a scan, but Kardon said it's useful for diagnosing the cause and extent of vision loss from diseases that affect the retina or optic ... news.google.com PR Newswire (press release) "And we add vision loss to the list of significant and debilitating health risks that are caused by smoking. If you quit today, you can immediately begin ... and more » news.google.com VA Watchdog dot Org (blog) ... paint a bleak picture, the really scary stuff is in the full report ... like: A veteran was over evaluated for vision loss associated with diabetes . ... From Google News Search: "vision loss"  wootley.com admin Sat, 19 Dec 2009 20:11:18 GM to excessive light exposure (Usually found in Gen3 and Gen4 night . vision. devices); Lightweight and Compact; Fully multicoated optics; 60-hour battery life; Built-in tripod socket; Built-in lens cap groove to prevent the cap . loss. ...  healthresources.admiral-ltda.com admiral Fri, 04 Dec 2009 04:04:27 GM After reviewing a number of large-scale studies, ophthalmologist William Mathers found that people who wear contact lenses have a more serious danger experiencing significant . vision loss. . Daily contact wearers have a 1 in 100 chance of ...  healthblurbs.com Health Geek Fri, 16 Oct 2009 15:33:04 GM Glaucoma is an eye disease marked by abnormally high pressure in your eye. This pressure is commonly caused by a build up of aqueous fluid because of an. From Google Blog Search: "vision loss" |
