Sunglass Eye Protection Oakley Safety Glasses

As another summer season approaches, the issue of sunglasses once again resurfaces. Eye care specialists are frequently asked questions whether sunglasses are necessary, and is there really a difference between the cheap ones and the expensive types? The short answer is YES to both questions.
Light, in general and, sunlight in particular is comprised of many units called wavelengths. Each wavelength has a different level of energy ranging from low energy at the red end of the spectrum, to high energy at the blue end. The ubiquitous UV light we hear so much about is situated next to the blue light, and has the highest and most dangerous amount of energy. It is this wavelength of light that we are most concerned with in regard to damage to the eyes.
When this high energy light enters the eye, it is absorbed into the ocular tissues. This energy then acts as a catalyst for an increase in tissue metabolism, and that is when the trouble begins. Individuals with a genetic predisposition toward Macular Degeneration can expect a dramatic increase in the severity of the condition, and a substantially earlier onset of the disease. Systemic disorders such as Diabetes will also put an individual at risk for this disorder. The natural lens in the eye is comprised of Alpha proteins; which are clear. When exposed to UV light, they undergo a chemical change that transforms them into Beta proteins which are yellow. This process is called cataractogenesis and results in cataract formation.
UV light is also absorbed into the outer layers of the eye, and will result in Pinguecula and Pterygiua. These are the yellowish bumps that form near the cornea, on the white part of the eye and the whitish growth on the cornea, respectively. Both are caused by UV exposure. These anomalies are more often found in individuals living close to the equator who are exposed to much higher amounts of UV light then northerners.
Last, but certainly not least is skin cancer. The tissue around the eyes is very thin and highly vascularized (many blood vessels) making it a perfect location for cancer. Both Basal Cell Carcinoma, and Squamous Cell Carcinoma are the result of overexposure to high amounts of UV light.
The best protection for UV light is GOOD quality sunglasses. Good being defined as one that absorbs all the harmful rays of the sun, and covers both the eyes and surrounding areas. While many cheap sunglasses claim to absorb 100% of UV light,lunette oakley, the fact is that these do not give the maximum amount of protection that is possible. They do absorb some, but not enough of what will ultimately damage our eyes. Sunglasses bought on the street for $10 will do nothing except increase exposure to UV light. By that I mean; the tint in the lens will dilate the pupil letting in more of the damaging UV light .
The least expensive of the good quality sunglasses are the Ray Bans. They will afford maximum, efficacious protection. At the other end of the cost spectrum is Maui Jim. There are 7 layers of laminates which filter all bad light out, and give perfectly clear vision. All other sunglasses have fewer layers of laminates, but still will give good quality. Other good brands include but are not limited to Oakley, Revo, Vuarnet, Corning, Serengetti, and too many more to list. All prescription sunglasses should include an ophthalmic quality lens and UV coatings. This will make them good sunglasses as well.
When it comes to sunglasses you do get what you pay for. Years of UV light exposure will cause permanent damage to the eyes, and surrounding tissues. It would be most prudent to put aside economics, in favor of competent protection. In the long run, protection is a wise investment.
Dr. Jay B Stockman is a contributing editor for VisionUpdate.net, and a practicing doctor for New York Vision Associates –

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Reprinted from 903085164 at 07:18 on May 30, 2010 Reading (loading. ..) Comments (0) Category: Personal Diary My father asked me what to pursue in life?
I answered with money and women, the father vicious hit my face; I replied, career and love, the father touched my appreciation to the head.
diary excerpts February 14
been bad mood today, let me know text message last night, and I used to crush the girl fall, and even told me a hundred ... ...
I was very sad, sad side of the rolled side of the purse: so I am more sad, and I could not even fall once the capital with her did not ... ...
diary excerpts May 17
remember one day recently graduated, my girlfriend sent a text message: 15
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diary excerpts July 23
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diary excerpts July 24
love to me last lesson is: do not like spicy food to find a girl for a girlfriend.
asked her to eat every hot pot, when we are intimate with, I will be miserable in the thought of a song: The Firebird.
diary excerpts May 23
suddenly remembered that university, the teacher out of couplet: National prosperity, family prosperity, national prosperity.
class leadership on the second line: days qualities, to grand, grand world;
later I was out of the classroom ... ...
because I was the second line is: you MA, and his MA, and you his MA it!
diary excerpts May 24
chance to see the book The Woman on the so-called mate choice criteria: a car has room, parents are dead.
depressed. Then write fantasy wife selection criteria: billions of dollars of property at home,tory burch flats, beauty in the world, virtuous gentle ######y, father-in terminal cancer ... ...
diary excerpts July 17
life, ah, can not be hanged in a tree die, to die in the nearby trees and more trees, a few try.
diary excerpts June 18
I found a man's way is attracted to him has been denied; attract women approach the opposite, that is, she has been satisfied.
diary excerpts September 8
unfair this world is that:
God says: I want to light,tory burch reva! That's when the daytime.
beauty said: I want to ring! So she had a diamond ring.
Regal said: I want a woman! So he had a woman.
I said: I want to take a bath! Actually without water it!
diary excerpts May 8
smoking supper to enjoy on the balcony, suddenly saw a blip in the night sky across the window of my heart I am so excited: Meteor! So make a wish ... ...
immediately promised a six or seven wishes, eyes open, have smoked cigarettes, and easily thrown out the balcony when I heard the voice of a girl downstairs: Diary excerpts March 22
money as I like dirt, I also regard it as waste of money! Dung are more afraid ah?
diary excerpts July 7
jealously guarding its availability, people can only be a waste; queens, people know how to be thrifty. But I am now, but yearn for the day to waste in the thrift.
diary excerpts May 10
I dream of life: sleep whenever he woke up, count the money a few hand cramps.
my real life: the number of money to woke up, sleep sleep hand cramps ... ...
diary excerpts March 18
this reading,tory burch sale, see the Emperor Kangxi in the twenty-three years old has been expensive the monarch of a country, Feng Ji Wei Gong, I was frustrated;
but see wen emperor had died when twenty-three years, I balanced.
diary excerpts November 11
this restaurant liquor and watered it! Damn! So I have money, but also to large restaurant drink Remy Martin, XO or something! And do not let them use the 2086 and 2072 the fool me, drink a bottle of this year to!
diary excerpts September 12
single very painful, more painful single for a long time a few days ago I saw a sow, they all thought it Meiqingmuxiu ... ...
diary excerpts June 22
are two men, one is ** very ** a; women are two types, one is pretending to pure, one is pretending not pure.
diary excerpts January 19
Valentine's Day, I was removed I found a school girl crush on the phone, sent her a text message: If there is only one bowl, you first drink half a bowl, the remaining half bowl, I put my arms holding you ... ...
few minutes later, she returned a text message: Who introduced you? One hundred, including seven nights.

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