(A), PC computer with the eyes close as our most frequent tool, but also to the eyes of the greatest causes of fatigue. Survey showed that 82.4 percent of cheap oakley sunglasses computer users suffer from computer vision syndrome. Expressed as dry eyes, pain, decreased vision, dizziness and neck with acid. In the United States, as occupational diseases, is ranked first! So, slow down a computer eye fatigue, but also because of the eye is the first!

(B), watching TV each have a certain visual ability, will be watching TV. TV is the most moderate of the occasion from the eye. TV itself is a certain flash of light, with relatively short distance, long time watching TV, more prone to cheap oakleys fatigue, especially in children, vision is not mature, likely to cause injury.

(C), covering a very wide read and write from an early age to learn, remember, our study with the progress of myopia and deeper. Read and write, are close to the fine visual completion, rely mainly on visual cone cells. Will bring visual cells in the visual system fatigue fatigue, muscle, eye, etc. will change accordingly pathological physiological changes.

(D), most from the myopic children before genetic fake oakley sunglasses inheritance. Accounted for the overall genetic myopia from about 5%. Both parents are high myopia (800 degrees), the probability that the child was very high myopia. Experts have suggested that a high degree of myopia of both is best not to get married.

(E), poor eye health habits of poor health habits on the eye with the eye of mass destruction is very far-reaching. Including fatigue, possession of hand-rub the eye, such as reading in bed. A bad habit is enough to ruin a good pair of eyes.

(F), environmental factors, including uneven reflective classroom blackboard, the wall is too bright, too bright or too dark lighting, furniture sub inappropriate, you will have direct and prolonged impact on our vision, silent.

(G), accidental injury disasters, unpredictable, head or eyes fake oakleys received an unexpected crash or injury may affect vision. Such as firecrackers, car accident, his fist hit the eye and so on. Probability is relatively small, damage is relatively large.

(H), diet good diet is the physical protection of our health, but also the vision to protect our health. Depending on the material of the process requires the participation of vitamin A, the optic nerve conduction and need the help of vitamin B, as needed to prevent the eye of the old healthy blood vessels, vitamin C and vitamin E this helpful. In the absence of vitamin A, the eyes often feel dry, astringent, fatigue, severe white of the eye cheap oakley sunglasses surface is dry, wrinkled, and even lead to corneal ulcers.

(9), psychological factors which are more vulnerable to neglect a factor. Excessive stress, depression all have a certain impact on vision. Afraid to wear glasses, do not wear the wear; desire to wear glasses, should not wear chaos wear. Will affect the vision.

(10), eye disease drug toxicity (conjunctivitis, keratitis, cataract, glaucoma, etc.) Non-eye disease (diabetes, cervical cone disease, high blood pressure, persistent fever, etc.) are likely to affect the short or long sight, some drugs and the virus can also affect vision. Including eye drops, are used will also affect the dependence of the vision. Aging of the eye itself (macular degeneration, cone cell density decreased, etc.) also affect vision.