sunglasses to pay attention to the color to be

[chun tian]

the choice of the color of the lens should be based on the color of the surrounding environment, the edge of the object is not clear, can Fake Ray Ban Sunglasses effectively identify the different color signal light as the principle. Lens color to gray, brown, green is better, because these colors of the lens on the infrared, UV absorption is good, Gray Lens for any chromatography can be balanced absorption. After wearing glasses, see the scenery will darken, and there is no Cheap Ray Bans UK obvious color tinted lenses to filter out a lot of blue light, can improve the visual contrast and clarity, the Cheap Ray Ban Glasses
air pollution is serious circumstances or fog wearing a long effect.
Some recent studies show that because of the sunlight into the eyes of blue light will hurt the eyes, and blue lenses can not filter out the sun in the blue spectrum, so when choosing sunglasses do not choose the best blue lens.
In general, the deeper the color of the lens shading effect is stronger, but does not indicate the ability of UV is strong, anti UV Sunglasses functions and lens Cheap Ray Ban Glasses materials, technology and other factors to secondary lens color depth is good, wearing too deep lenses, it is difficult to identify the color of traffic lights.
Children can wear sunglasses. The child's eyes delicate, easy to light damage, in this sense, children need to wear sunglasses but note that children under 6 years old not appropriate long time wearing sunglasses, because the children's visual function development has not reached adult levels, long time wearing Ray Bans UK sunglasses may form amblyopia.
The right way is to put the child in a strong sunlight, when the sun is weak in time to take off. For children under 6 years of age to choose sunglasses to pay attention to the color to be
People over the age of 40, the lens Ray Ban South Africa nucleus began to harden, the cortex began to expand, resulting in a shallow anterior chamber.
After wearing sunglasses, entering the eye of visible light is reduced, the pupil will naturally open, Da Hong film easy to accumulate in the corner, obstruction of aqueous outflow channels, for a long time, easy to induce acute angle closure glaucoma, there is redness, pain in the eyes, sharp decline in vision and other symptoms. In particular, there Replica Ray Bans
is a history of glaucoma or glaucoma patients in the family who are prone to this situation. Glaucoma patients or those who are suspected of glaucoma should not wear sunglasses, 40 years of age who wear sunglasses should also be cautious.