Friday, December 2, 2011

The Dangers of Driving Without Wearing Polarized Sunglass Lenses

Take Off Your Sunglasses by Ezra Furman & The ...
Who would have imagined that stepping into a car without polarized lenses could be dangerous?
These dangers are real due to the amount of glare refracted off a horizontal surface like a road, or snow covered road, and it's significantly higher than an ordinary situation. Additionally a car's interior, including the dashboard, can reflect light worsening the light sources while driving.
Continual driving in glary conditions can cause eye fatigue leading to driver drowsiness; this is a highly documented contributing factor in car accidents and fatalities. Late afternoon sun, moments of intense glare, and driving close to water surfaces can all cause moments of blinding that effects driver safety. Glare from the sun has been quoted as a key reason for car crashes worldwide. The basic step of wearing polarized sunglass lenses is a practical approach.
Driver Reaction Times
"Reaction times for drivers wearing polarized sunglasses are up to 20% quicker compared to driving without any sunglasses and up to 40% quicker than with ordinary sunglasses. Faster reactions mean that stopping distances are shorter - by up to 6 metres - compared to driving with non-polarized sunglasses, and as much as 3 metres shorter than driving without sunglasses." Results from a Polaroid study found. (Test results available at polaroideyewear.com)
So what are polarized lenses?
Basically, a polarized lens has a specialized coating that is typically injected into the middle of the lens that is polarized vertically. Visible light waves come from all directions and when this fragmented light connects with a horizontal lens plane, high levels of glare occur. A polarized lens reflects the light off the surface of the sunglass lenses, blocking the fragments of light entering the eyes and reducing the overall glare. This greatly reduces harmful UV light allowing the human eye to see contrast and images with much greater clarity than a regular lens as can be seen below.
Given the many benefits of polarized sunglasses it's no wonder they've become a key competitive edge for sports sunglasses. Companies such as Oakley, Rudy Project and Arnette provide a huge range of polarized lenses for their sports sunglass range. Once you're accustomed to wearing sunglasses when driving or outdoors it can become uncomfortable and dangerous to be driving or playing sports without the usual UV protection that your eyes get used to. The answer is to have multiple pairs of good quality sunglasses on hand for every situation. To buy sunglasses online is an easy and usually cost effective way to ensure you have enough pairs of sunglasses for all your daily activities.

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Implanted Contact Lenses

Blue Color Contact Lens EspaƱol: Lentes de con...
Reshaping the cornea or the front of the eye with a laser is the most general mode of correcting vision (e.g. PRK or lasik). However, you may not meet the rigorous criteria when it comes to laser eye treatment like this and so other methods would be more right.
One option would be implantable contact lenses. The process primarily involves placing a pre-made plastic contact lens within the eye. This is not to be mistaken as the similar conventional contact lenses you would regularly apply every day as an alternative to spectacles. Implantable contact lenses are designed to sit between the iris (coloured part of the eye) and the natural lens within the eye.
They are molded with wings to keep it in position and for them to sit fittingly in the eye. The shape of the center is round, equipped with the specific power essential to correct your vision. The spectacles prescription which is measured before the operation begins is what determines the power.
Before the slim piece of plastic is inserted into the eye, a local anaesthetic is needed. Should patients require mild sedatives, they can consume them orally to steady them down while the short operation takes place. To enlarge the pupils, another eye will also be used, enlarging the hole where the implantable contact lens will be placed; between the iris and lens.
Around 3mm in length, there would be two minuscule incisions to be made at the edge of the cornea. To introduce the implantable contact lens into this minor incision, a device which rolls up the artificial lens will be used. The contact lens will then be ejected out of the implantation device once within the eye, unfolded, of course. Maneuvering the lens to sit behind the iris, the right arrangement is done with a metal prong inserted into the second incision.
The total time that the surgical operation takes is around 30 minutes.
No stitches are necessary as the corneal incisions mend promptly on their own. Translucent shields are set over the eyes to be removed the following day.
Implantable contact lenses receive a lot of advantages over conventional laser eye treatment such as lasik.
For instance, lasik cannot be performed on thin corneas as it involves reshaping the cornea so enough thickness is required. For moderate to high amounts of myopia (short-sightedness) or astigmatism, lasik cannot be performed as more of the cornea needs to be removed. Implanted contact lenses would be likely.
If your Rx changes after the operation, the implantable contact lens can be removed and a fresh lens put in its position. This can be done a lot of times. Lasik can only be done for a limited number of times as the cornea becomes thinner with each operation.
Implantable contact lenses are becoming an increasingly general refractive surgical surgery. With better materials and lens designs, this may be the touchstone in vision improved in the future.

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Proven Methods That Will Help Improve Vision - Correct Your Eyesight

PARIS, FRANCE - MAY 27:  Julia Georges of Germ...
Do you sometimes wish that you did not have to wear glasses or contact lenses to help correct your vision? Well if so then you need to keep reading because there are things you can start doing now that will help you improve your vision. You do not need to go out and see an optometrist or get any dangerous lasik surgery. All you have to do is start following a few easy tips.
The first thing that you will need to do if you want to get rid of those glasses and contacts is sleep. Getting a good night sleep helps give your eyes time to rest and relieve all that unwanted strain. And having strain on your eyes is the last thing you want because it just makes them worse.
Another important thing that you will have to start doing is eyes exercises. Things like blinking really fast and covering your eyes helps a lot. Doing things like that help keep your eyes healthy and strong. So it is your responsibility to start looking out for them if you want them to look after you.
Now if you no longer want to have to wear those ugly glasses or uncomfortable contacts then follow these tips. There is no reason for you to have to keep living your life with bad vision. Instead you can start doing things that will actually help you naturally improve your vision back to where you want it. So follow these tips and more because they will truly help you.
You're not restricted to having to wear prescription eyewear or paying for lasik eye surgery to improve your vision. There is a natural way to improve your eyesight within a few weeks. If you are tired of having to worry about glasses or contact lenses and you're worried about the risks of surgery, there is an effective, natural way to get better vision.
If you're tired of the cost of your glasses or contacts and you just want to have the freedom that better vision affords you, it can be done naturally. You can see better just a few weeks from now. People just like you have improved their vision through the use of eye exercises. It's your turn now to see better.

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