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EyeSight Vision Care
August 10, 2010
What we feed our bodies feeds our eyes.
Many of the vitamins and minerals in our bodies are found in much higher concentrations in our eyes, so a diet lacking in these vitamins and minerals can lead to vision problems as we grow older.
Take the time every day to give your eyes (and the rest of your body) the nutritive support they need.
Eat the foods and take the supplements that provide the antioxidant vitamins and minerals your eyes require.
You’ll Protect Your Eyesight, ensuring years of good eye health, and increasing the odds that you’ll avoid blindness or vision loss for the rest of your life.
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I need your help.
I have a page on this website that is for my readers to tell their Eyesight story. My hope was to have people tell their story so it might help someone else with the same problem or experience.
But lately there has not been any activity on this page. Could you please look at this page and contribute someone if you can.
Table of Contents
Color Blindness, or, "Honey, does this shirt match my pants?"
Summer's in full swing!
This is the time of year we savor the scenery - a bright blue sky whiskered with milk-white clouds; the velvety red bloom of a rose; green lawns and trees. Or perhaps we are on vacation, gazing upon some faraway landscape: the smoke-blue mountains of the Himalayas, shrouded in mist; the pink sand beaches and turquoise waters of the Caribbean; a brilliant orange, yellow and green Toucan flying through the lush South American rainforest.
But what do you see if you're color blind? Does that mean your world, like an old movie, is black-and-white?
Green Means Go
Don't let the name fool you. Most people who are color blind can still see colors - some colors, that is. It's just that they can't tell the difference between certain colors, so that, for instance, at a stoplight they may have to rely on positioning to distinguish red from green.
There are four different types of red-green color blindness. They range from a total inability to see the difference in the green-yellow-red section of the spectrum (rare) to the most common form of color blindness: a reduction in sensitivity to the green area of the spectrum.
The latter occurs in about 6% of the male population (who, by the way, make up the majority of the color blind, thus giving rise to the famous comment, "You're not going to wear THAT, are you?").
It's in the Genes
Why do the people of Pingelap and Pohnpei suffer from color blindness? And why does color blindness occur mainly in males? The answer is that color blindness is almost always an inherited trait.
We all have two kinds of photoreceptive cells in our retinas: rods and cones. Normally, there are three kinds of cones, each containing a different pigment.
One pigment is sensitive to short wavelengths, one to medium wavelengths, and the third to long wavelengths (corresponding to the blue-violet, green-yellow, and greenish-yellow regions of the spectrum, respectively). We recognize different colors when the different types of cone are stimulated to different extents.
We wish you a happy, healthy summer, full of colorful scenery - and matching clothes.
Protect Your eyes, Your Eyes will thank you.
Vision Tip of the Month: Smoking
The chemicals in cigarettes can harm the most sensitive part of the retina, called the macula. Your vision can be irreversibly damaged when cells of the macula die or tiny blood vessels burst through it.
Vision Facts of the Month
Color blindness affects a significant number of people, although exact proportions vary among groups. In the United States, approximately 10% of males suffer from some deficiency in color perception. Isolated communities with a restricted gene pool sometimes produce high proportions of color blindness, including the less usual types. Examples include rural Finland and some of the Scottish islands.
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