Wearing sunglasses to protect eyes?

As temperatures rise, a wide variety of oakley sunglasses cheap comes up again. Put on sunglasses to protect the eyes?
A simple pair of sunglasses and wearing improper can cause headache, eye pain, fatigue, discomfort, severe cases there will even be vision problems and eye diseases in itself increased.
Misunderstandings: under the hot sun wearing sunglasses to protect eyes
Many people feel that wearing sunglasses to protect your eyes, does not. A qualifying pair of sunglasses can block UV rays through, would also like to be able to distinguish between different colors of traffic signals and so good. Ineligible sunglasses may carry unwanted diopter sighted people wearing the sunglasses, the equivalent of wearing a pair of myopia or hyperopia glasses, vision is affected. In addition, poor quality sunglasses will block the useful part of visible light, UV exposure are more obvious. Therefore, recommendations to formal service provided by the public agency to select and buy the sunglasses.
Misconceptions II: lens color is darker, the better
Ultraviolet rays are blocked from entering the eye, instead of relying on the lens color density, but by the sun UV absorbers in the lens decision. If the wear is not anti-UV spectacles, makes the pupils dilate, damaging our eyes.
Myth three: kids sunglasses
Visual function of children below 6 years old is not mature, if worn for too long, the retinal macular area without effective stimulation, may affect the further development of vision, even visually. In addition to strong sunlight beyond the need to wear cheap oakley sunglasses, generally try not to allow children to wear sunglasses in order to decorate.
Myth four: best for the elderly do not wear sunglasses
Sunglasses do not have eye diseases in older persons, is a positive method of eye, especially wearing sunglasses can prevent senile cataract, pterygium. Of course, elderly people have a family history of glaucoma should be extra careful, once the poor choices or worn for too long, easily induced eye disease.
Myth five: eye patients out, be sure to wear sunglasses
For eye diseases in people, choose to wear sunglasses caution, such as cataract, keratitis, conjunctivitis, retinal detachment patients, wearing sunglasses has a protective effect, especially in patients with keratitis in patients with dry eye and easily scared, weeping, sunglasses to avoid strong light stimulation could be used. Patients with glaucoma, blindness, night blindness and other three particularly unfit to wear cheap oakleys sunglasses, would add to the existing eye diseases.