Select sunglasses and eye diseases

The heat of summer, people is much focused on the skin sunscreen, but often overlooked eyes also need sun protection. In fact, as human eyes is extremely delicate parts, are susceptible to UV damage. Harmful ultraviolet light is the eye health of the killer, can cause keratitis, macular damage, cataracts and other eye diseases. According to a World Health Organization data show that worldwide there are more than two million cases of cataract cases may be caused by long-term exposure to sunlight. Thus, the eye of the sun is important.
Eye summer sun to do the following aspects: First, do not look directly at the sun. The eyes are relatively fragile organ; look at the sun, even squint eyes look directly at the sun can cause short-term temporary immediate shadow, staring directly into the sun may damage your eyes. Second, under the hot sun to avoid outdoor activities. Third, wear a wide-brimmed hat when going out or umbrellas or wearing suitable cheap oakley sunglasses.
It should be pointed out that, not colored lenses called sunglasses, sunglasses should have a marked anti-uv, anti-uv coefficients in the four hundred or more, it is sufficient to protect the eyes. If you choose not block ultraviolet inferior sunglasses, more easily lead to eye damage. Because wearing sunglasses descendants of this pupil will expand, rather than not wearing UV sunglasses easier access to the eyes, causing eye injury. If you wear is not correct, sunglasses can cause a range of diseases:
Induced acute glaucoma because wearing sunglasses after the reduction of visible light entering the eye, the pupil will naturally turn, glaucoma patients will appear red eye, eye pain, headache, vision sharp decline, even accompanied by nausea, vomiting and other symptoms. So, glaucoma or suspected glaucoma patients who should not wear sunglasses.
May lead to amblyopia in children 6 years of age children development of visual function does not reach normal levels, wearing cheap oakleys sunglasses a long time, macular area can not be effectively stimulated the further development of the visual impact, it may form amblyopia. Therefore, children under 6 years of age should not wear sunglasses.
Some people cause visual fatigue, regardless of time and occasion, indoors or outdoors, and regardless of the strength of the sun, even in the twilight, in the evening, watching TV, watching movies, also wearing sunglasses, this will increase the burden on the eyes, causing eye muscle tension, blurred vision, severe dizziness will appear, not for a long time as the other symptoms.
Triggered "sunglasses syndrome," suffering from this syndrome is more common in fashion sunglasses young people, they prefer to wear edge width, frame thick, heavy weight large frame mirror. Such continuous wear glasses after 1 to 2 weeks, it may cause nasal discomfort, as suffering from a cold, and still others feel like little bugs crawling on the face, upper gums numbness, discomfort upper incisors, eye soreness. This is because the thick frame, broadside, heavy component of sunglasses easily facial trigeminal nerve compression, resulting in the above symptoms.
Thus, the sun is important for the eyes, the right choice of oakley sunglasses cheap is more important