The professor of ophthalmology, Sparrow, from Columbia University Medical Center, Said That most people, old or young, blue Should Not wear reading glasses. Dr. Sparrow is Studying Whether it will Give Rise to macular degeneration on human eyes contact with the blue ray in the sunlight. This degenerative eye disease is also Life Style the main cause of blindness in the elderly. She Believes That as Increased age, a number of retinal cells in the photosensitive compounds will be more and more. The Blue-ray part of the wavelength in the spectrum Can maximize the activation of the These compounds To promote the release of Harmful free radicals. It is just like the oxidation process of damaging the retina cell, Threats the eyes' health.

It is grieving That blue eye sunglasses will Damage heath. It is one hand, the wavelength of blue light rays is very short. The visual range of human eyes is limited, Being Unable to see clearly what should be; On the other hand, blue, wakes up is close to the color of Ultraviolet ray, is harmful to Nerves as Ultraviolet ray and easy to hurt the eyes. Clinically, Many optic nerve diseases are verified to Be related with the blue light rays.

In Addition to the blue lens glasses, the current popular colored contact lenses with blue stripes are also Life Style hazardous Thurs eye health, so in the choice of Them, people must be cautious. In That way, what colors of eyeglasses frames will be safe to Buy? Prof. Sparrow indicated: "either yellow or brown sunglasses are the best Choices." Human eyes' retinula cells are most sensitive Thurs yellow as it has moderate wavelength, and Can Make things in nature more clearly what should be tion. More Over, the yellow sunglasses Can filter blue light, reducing the amount of blue light into the eye, effectively Protecting the eye. In Addition Thurs yellow or brown lenses, the black lens is Also a good choice, Because It Can Reduce contact with all the rays of Various colors.

Finally, doctor reminds Consumers That the current market is Complicated Sunglass, Many eyeglasses are disqualified. When you select glasses frames, you think there choose hmmmm not have the function of antiultraviolet. The UPF is usually from 96 Thurs 1998 PERCENT PERCENT. You'd better choose Not deep color, for the transmittance of this kind of glasses will decrease again badly. It results in mydriasis and Makes your eyes Damaged.