These particles block the light passing through your eye , casting shadows on the retina. The shadows are seen as floaters, which can be created by: The formation of protein clumps in the vitreous gel. These types of eye floaters tend to look like squiggles, cobwebs, tadpoles, or circles. They remain in the vitreous gel permanently, and people tend to ignore them. The bursting of blood vessels in the retina as the shrinking vitreous gel pulls on them. Eye floaters caused by this kind of minor hemorrhaging create little black dots in your field of vision, which can resemble smoke or a cloud of gnats. They usually resolve themselves as the blood is reabsorbed by the body, but can last for months.
For the original version including any supplementary images or video, visit http://www.everydayhealth.com/vision-center/the-healthy-eye/floaters-flashes-retinal-tears.aspx
Millions of Americans suffer from dry eyes, and experts say computers and smartphones are making the problem worse. That’s because when staring at those devices, you may be blinking somewhere around 50 percent less often that you do when looking at other everyday things, says Dr. Christopher Starr, an associate professor of ophthalmology at Weill Cornell Medical College. He explained on “CBS This Morning,” “Normally, we blink about 20 times per minute. It can drop to eight or 10 times a minute. And when you’re not blinking, the tears that are on your ocular surface just evaporate. You’re not distributing new, healthy, clean tears across the ocular surface.” Another thing that can contribute to the dry-eye feeling is the lack of oil being distributed to the eye via your eyelid.
For the original version including any supplementary images or video, visit http://www.cbsnews.com/8301-505269_162-57593046/dry-eyes-and-technology-what-you-need-to-know-to-protect-your-vision/
Oliver Sacks Discusses Vision and ‘The Mind’s Eye’
These pinhole glasses cost about the same as a pair of sunglasses at the grocery store, and they’re not medical devices at all, so they need no prescription. They contain no lenses, either. Safety note: Do not wear pinhole glasses while driving or operating heavy machinery such as an airplane, an automobile or a wrecking ball crane. These glasses partially obscure vision and should be used solely as exercise devices in a safe environment like your home. They don’t work for every case of vision impairment, of course, as there are many causes for blurred vision. But they work remarkably well for most people who try them. Many people are absolutely AMAZED at the instant difference they see when putting on these pinhole glasses.
For the original version including any supplementary images or video, visit http://www.naturalnews.com/034345_blurred_vision_eye_doctors_pinhole_glasses.html
Blurred vision? Eye doctor myths exposed – learn how to exercise your eye muscles for restoring healthy vision and eliminating prescription glasses
Go ahead. HOVEN: So when he was when you were talking about your – losing your vision and your stereoscopic cameras, there’s a thing that when people lose a limb and they still feel pain like they’re clenching their fist, they can put a mirror down and see both images. And perhaps you can you could use something like to kind of give you that sense of full depth and you also still take pictures that come out the way you want them to. Dr. SACKS: Well, perhaps I could. But I see I’ve tried all sorts of ways and there’s nothing which really makes up for the sense of depth.
For the original version including any supplementary images or video, visit http://www.npr.org/2010/12/03/131785460/Oliver-Sacks-Discusses-Vision-and-The-Mind-s-Eye
Life With Monkeys 