Study Shows Zeaxanthin Improves Vision in Elderly

November 15, 2011

The Zeaxanthin (zee-uh-zan-thin) and Visual Function Study (ZVF), conducted by eye nutrition pioneer Stuart Richer, PhD, OD at the Veterans Administration Hospital in Chicago, shows scientific evidence that dietary Zeaxanthin improved vision in night driving and fine detail, among others.
The ZVF Study followed 60 elderly veterans with early Age-Related Macular Degeneration (AMD) over a 12-month period that consumed 8 mg of dietary Zeaxanthin daily, showed improvement in the ability to drive at night, recognition of fine detail – an average improvement of 1.5 lines or 8.5 letters on an eye chart, and the disappearance of blind spots.

Read more: http://www.sacbee.com/2011/11/10/4044530/study-shows-zeaxanthin-improves.html#ixzz1dn2MQYyF

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Treatments for Night Blindness

January 13, 2011

Night Blindness is a condition of inability to see in dim light, also known asnyctalopia. It is apparently caused by other conditions of the eye. These can include:

  • Vitamin A deficiency, treatable with supplements and dietary adjustments.
  • Near-sightedness or myopiaA new eyeglass lens presciption can relieve the problem.
  • The effects of glaucoma medications – Ask your doctor about your medications and whether they should be changed.
  • Cataracts – The clouding of the lens inside of the eye. This not a growth over the outside of the eye, as some legends tell. Some cataracts can be treated by surgical removal and replacement with an opitcal lens – an aunt of mine had this successfully performed in the late 1970s and surgical techniques have improved quite a lot since then. It’s even doen on an outpatient basis now.
  • Retinitis pigmentosa – Affecting close to 100,000 people in the USA, this is a condition of the rods and cones of the retina. They begin to lose function. No treatment or cure exists in 2010, but research is under way. Some forms of this conditioncan lead to eventual blindness, bit not all of them so do. See your eye doctor yearly for examinations. If you see flashing lights and have loss of vision to the side, these may be symptoms, so call your eye doctor.
  • Scratched Eyeglasses

http://hubpages.com/hub/How-to-Handle-Night-Blindness-and-Headlight-Glare


Eye danger signs you can’t afford to ignore

January 10, 2011

FLOATERS – WHEN TO WORRY: If the occasional floater turns into a sudden “cobweb” of squiggles, especially with associated flashes, or one single, large floater that won’t disappear. This is a sign of vitreous detachment, where the vitreous jelly pulls away from the retina.

COLORED LIGHTS – WHEN TO WORRY: If the multi-coloured lights last for longer than 30 minutes, it could signify a detached retina.

Unlike ocular migraines, these are almost always in one eye, so put a hand over one eye and see if it’s the same on both sides. If it lasts for more than 30 minutes and affects only one eye, head to A&E – you may need surgery to re-attach the retina.

FOGGINESS (Misty, blurred vision)

WHEN TO WORRY: If an eye test rules out short-sightedness and the fogginess has appeared suddenly and isn’t eased by eye drops, the problem could be related to blood circulation.

A blood vessel blockage at the back of the eye can cause fogginess. It may be accompanied by loss of the top part of your vision, so you wouldn’t be able to see objects in front and above you without tilting your head.

In effect, this is a “mini-stroke” in your eye. This generally happens in people over 50. Head to your GP straight away – a full-blown stroke could be on the way.

HALLUCINATIONS – when people start losing their sight – most commonly due to age-related macular degeneration or sometimes glaucoma – their brains don’t receive as many pictures and new fantasy pictures or old pictures stored in our brains are released and experienced as real objects. It’s a condition known as Charles Bonnet Syndrome (CBS),

TREATMENT: There is no treatment of proven effectiveness for CBS. It usually disappears within 18 months, as experience teaches the brain the hallucinations aren’t real.

For those experiencing CBS, knowing they are suffering from this syndrome and not a mental illness seems to be the best treatment, as it helps them cope with the hallucinations. Interrupting the hallucination for a short time by closing the eyes or blinking is sometimes helpful.

TUNNEL VISION – WHEN TO WORRY: Tunnel vision can also be caused by glaucoma. This is where the eye produces too much fluid or does not drain enough away, increasing pressure in the eyeball, which can damage the optic nerve and cause tunnel vision, among other symptoms. The damage caused by glaucoma can’t be reversed, but if caught early, it can be stopped by medicated eye drops – eye tests are essential.

LOSS OF NIGHT VISION – If you’re losing night vision and also experiencing tunnel vision, it could be caused by retinitis pigmentosa (RP), a group of genetic eye diseases that cause progressive loss of vision. Unfortunately, there’s nothing you can do about it.

http://www.iol.co.za/lifestyle/eye-danger-signs-you-can-t-afford-to-ignore-1.1007697

 

 

 

 


Protect your eyes and night vision

January 14, 2010

  

Here is a tip for Mac users from Komando.com.

Staring at a computer screen for hours can be physically taxing. It’s especially rough on your eyes. It also completely ruins your night vision. Going from a screen to a dark room just doesn’t work.

If your eyes are feeling tired, try inverting the colors on screen. This is actually an accessibility option on your Mac. Just hit Ctrl + Alt + Cmd + 8. All colors are switched to their opposites. This can be easier on your eyes for a little while.

However, it doesn’t look great. Switching black and white works well. But color images look like strange, infrared versions of themselves. It’s not something you want to look at for long. So, use Nocturne instead.

It too inverts the colors on your screen. But it switches everything to shades of black and white. Or, you can change those colors. Make all the white areas red. Some shades of red can help preserve night vision in dark environments. Nocturne can even use a Macbook Pro’s built-in light sensor. So, it’ll switch to night mode automatically.

Cost: Free
System: Mac OS X

http://www.roxysoft.com/macintosh/Nocturne-For-Mac/

http://docs.blacktree.com/nocturne/nocturne


Treatment for Night Blindness

November 24, 2009

Just as Macular Degeneration is treated by the AREDS nutritional aids, Night Blindness can also be treated by nutrition. The following vitamins and minerals have been found helpful.

Vitamin A, vitamin C, zinc, copper, taurine, schisandra berry, black currant, ginkgo biloba, glycine, alpha lipoic acid, lutein, lycopene, zeaxanthin, astaxanthin.

This combination is available as Vision Essentials, made by

Forward Nutrition

Box 1841

Arden, NC 28704

1 – 800 – 722 – 8008