FDA Announces Class I Recall Of Ophthalmic Surgical DeviceThe U.S. Food and Drug Administration announced a Class I recall of lot no. UD30654 of Healon D, an ophthalmic viscosurgical device (OVD) manufactured by Advanced Medical Optics Inc. (AMO) of Santa Ana, Calif. OVDs are viscoelastic materials used to maintain space in the eye during surgery. Typically, OVDs are pre-packaged in a syringe and are applied using a small tube. On Oct. 30, 2008, AMO voluntarily recalled all 4,439 units of Healon D lot no.
Bright Lights, Not So Big PupilsA team of Johns Hopkins neuroscientists has worked out how some newly discovered light sensors in the eye detect light and communicate with the brain. The report appears online this week in Nature. These light sensors are a small number of nerve cells in the retina that contain melanopsin molecules.
The Discovery Eye Foundation Recommends Eye Care As A New Year's ResolutionNew Year's Day is a time of year when many individuals take a look forward to the coming year. New Year's resolutions, such as weight loss, and exercise are common, but medical experts at The Discovery Eye Foundation (DEF) are recommending you include making eye care a priority. Eye care is not usually something that tops everyone's New Year resolution lists.
Purchasing Contact Lenses OnlineWhen purchasing lenses you obviously want to get the best deal possible and it has shown over and over again that the Internet is where the best prices are. However, with that said we also have to mention that purchasing contact lenses online comes with some downsides. To clarify all the important points that this topic sustains we created this guide with the pros, cons, online safety and other important dos and don'ts.
Facial Expression Of Emotion Is Hardwired Say Scientists US scientists studying the facial expressions of blind and sighted Olympic athletes from more than 20 countries concluded that the way our faces show emotion is determined by our genes: it is hardwired and not learned. The study was the work of San Francisco State University Psychology Professor David Matsumoto and colleague Bob Willingham and is due to be published later today, 29 December, in the Journal of Personality and Social Psychology.
Living With Glaucoma: It's All In The FamilyWith today's improved treatments, glaucoma patients no longer face inevitable blindness, but preserving vision depends on seeing an Eye M.D. (ophthalmologist) at the right time and carefully following a prescribed plan. Glaucoma remains a leading cause of preventable blindness because it often goes undetected -- about half of the three million Americans who have the disease are unaware of it.
Blind Man Navigates Obstacle Maze Unaided With a study of a blind man who successfully nagivated an obstacle maze unaided, scientists have shown for the first time that it is possible for people who have been left blind after severe brain damage to the visual (striate) cortex to be able to use an ability called "blindsight", where they can detect things in their vicinity without being aware of seeing them.
Issued Of Vision-impaired People When Accessing GP Practices, EnglandAction for Blind People have been asked to carry out a scoping exercise on behalf of the Department of Health on what issues vision impaired people have when accessing GP Practices, from the point of actually needing to make an appointment to actually being in contact with a relevant professional practitioner (e.g. doctor or nurse).This could be an actual face to face appointment, telephone consultation, etc.
Research Into The Contrast Sensitivity Of Persons With Varying Levels Of Visual Acuity The objective is to determine the characteristics of contrast sensitivity of the human vision system (HVS) by experimental measurements employing a CRT. Said characteristics form the basis for the technologies of displaying, processing and understanding images. The contrast sensitivity function (CSF) is one of most important measures for the HVS.
AOA, School Nurses Partner To Link Healthy Vision And Improved Classroom Learning The American Optometric Association (AOA), the voice for more than 36,000 frontline providers of eye and vision care nationwide, formed a new partnership today with the National Association of School Nurses (NASN) aimed at developing and implementing strategies to ensure that school-aged children have increased access to comprehensive vision care.
People With Blindness From Cataract Are Poorer Than Those With Normal SightA new study conducted in three developing countries - Kenya, the Philippines, and Bangladesh - finds that people with cataract-induced visual impairment are more likely to live in poverty than those with normal sight. The study is published in the open access international health journal PLoS Medicine. Blindness affects about 45 million people worldwide, and more than a third is caused by cataract.