Tips on Choosing Proper Eyeglasses It is imperative for nearsighted people to choose proper eyeglasses so as to protect their vision. And the essence of a pair of glasses practically lies in lenses. progressive lenses vary from materials with different characteristics; however, it doesn't mean that the higher the price, the more they may suit you. In terms of materials, lenses could be classified into glass optical lenses, resin optical lenses and contact lenses, among which, the last one is the most traditional choice in the market. Glass optical lenses are harder and provide good abrasion resistant property in comparison with the other lenses. With addition to be low in price, they are more suitable for people with a modest salary and those who require good living environment of working as well as learning. But if you dislike wearing a pair of thick glasses, super thin one could be an alternative, especially for those under 400 degrees. Resin lenses are leading the way and being sought after by a growing number of people, with lenses forty percent lighter than common optical lenses, which fascinates high myopia most as such kind of lenses greatly relieve them from oppressing eyes. Besides, resin lenses could be made thinner in that they feature at once good impact resistance and are not fragile. Lenses like 1.56 index lenses, 1.580 index lenses, 1.591 index lenses, 1.61 lenses and 1.67 lenses are all enjoy higher refractive index with excellent properties. Thinking out of beauty or from a career point of view, soft contact lens is also competitive in the market. However, not all the people could wear contact lenses. In a general way, people suffering from keratitis or trachoma can not wear such kind of lenses. Neither can the pregnant women. By and large, strict examination should be taken and people shall follow doctor's advices before trying to use contact lenses. In order to prolong service time of optical lenses, it is of much importance to carry out daily maintenance. Only soft clothes could be used to clean glass and photochromic lens lest they should be scratched. Moreover, do not place glasses under the sun as they could be damaged by heat. As for wearing contact lenses, you can never be too careful as well as patient to wear and clean them. That' because contact lenses usually cost people more trouble compared with the other two kinds of lenses. People should acquire good health habits in the first place. And hands must be very clean when using contact lenses and take them off each day after using with them soaked in nursing liquid after cleaning and disinfecting. Additionally, it is necessary to accept regular ophthalmic examination. Don't try it if you are not getting ready to follow the advices above.

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