fall leaf

fall leaf

Thursday, April 26, 2012

Eye

Eye




Your eyes blinks over 27,397 times in a days
The eyeball of a human weighs approximately 28 grams.
Under the right conditions, the human eye can see the light of a candle at a distance of 14 miles.
The eye of a human can distinguish 500 shades of the gray.
Your eyes can process 36,000 bits of information every hour.
We should never put anything in or near our eyes, unless we have a reason to use eye drops. We would only do that if our doctor or parent told us to use them.
Blinking helps to wash tears over our eyeballs. That keeps them clean and moist. Also, if something is about to hit our eye, we will blink automatically.
Our body has some natural protection for our eyes. Our eyelashes help to keep dirt out of our eyes. Our eyebrows are made to keep sweat from running into our eyes.
Our eyes are very important to us, and we must protect them. We don't want dirt, sand, splinters or even fingers to get in our eyes. We don't want our eyes to get scratched or poked. That could damage our sight!
The study of the iris of the eye is called iridology.
The shark cornea has been used in eye surgery, since its cornea is similar to a human cornea.
The number one cause of blindness in adults in the United States is diabetes.
The eyeball of a human weighs approximately 28 grams.
The eye of a human can distinguish 500 shades of the gray.
The cornea is the only living tissue in the human body that does not contain any blood vessels.


Eye Health and Vision


LASIK Vision Correction

LASIK is a very successful procedure for correcting myopia, hyperopia and astigmatism. Since it was first developed in the mid 1990s, the technology has steadily improved and the results are now better than ever. In addition, ophthalmologists have developed a number of other vision correction procedures to correct your vision even if you are not a good candidate for LASIK.

Aging Eyes

As the large Baby Boomer generation approaches retirement age, aging issues are receiving more attention. In the area of vision, two of those issues are cataracts and presbyopia. Historically, eye doctors have corrected presbyopia with reading glasses and bifocals. Now there are many more options for improving your reading vision. Technology has also increased the options for people receiving cataract surgery. During cataract surgery, the surgeon will replace your eye’s natural lens with an artificial lens, also called an intraocular lens (IOL). Advanced IOLs now offer remarkably clear vision at all distances and in most lighting situations, which means you no longer need to rely on your reading glasses.