First, young people suffering from nearsightedness, farsightedness and astigmatism with Ray Ban Outlet sunglasses have to go to the hospital to check visual acuity, cyclopedia refraction, and measure the distance between the two pupils. Cyclopedia refraction is to eliminate the impact of regulation and its components caused by the pseudo-myopia, and application of drugs to the eye's culinary muscle is completely paralyzed, in the case of mid-rise optometry carried out.
Measuring the distance between the two pupils is to determine both sides of the glasses lens optical center distance between the two must be consistent, otherwise prism effect may occur, the interference of visual function after wearing glasses dizzy, depending on the distortion, eye soreness, fatigue and so on.
Second, choose glasses frames to fully meet the requirements of optical lenses and frames inclination and so on. Big eyes to choose a large frame, eyes small selection of some of the smaller frame, fat round face suitable for wearing thick frame, lanky frame for round face, flat round face should choose a slightly narrower bottom square frame. Not suitable for children to wear metal frame, because the metal frame nose pads can lead to allergies and nasal pressure.
Third, the lenses should be based on age, occupation, frequently engage in activities by wearing Ray Ban Wayfarer Glasses preferences and other factors to choose from. Glass lenses, high hardness, not prone to scratches, but is easy to shatter. Due to the nature of work or other reasons make glasses easily stained with dust, causing the lenses to scratch, the best selection of glass lenses. Resin lenses, light weight, not easy to be broke, but lower hardness, prone to scratches. Because most children naughty fun, eye injury lenses broken things often happen, so it is best to choose child resin film. If you are not satisfied with the lens thickness or appearance, you can choose thin lenses or spherical lenses. If you regularly engage in outdoor activities or travel, photo chronic lens is a good choice.
Fourth, frame lenses currently on the market many varieties, prices vary greatly. Many parents in the selection of lenses for their children, the blind pursuit of expensive, that only your glasses is the best, most expensive glasses is suitable for the child's eye development.
Students to choose the most important prerequisite for glasses to fit you do not blindly pursue fashion pick rimless frames or punch. Children under the age of 10 can choose glasses nose pads protect the soft side of the glasses shelf, over the age of 10 can basically choose full rim frame.
Children choose lenses should first consider the hardened resin spectacle lenses, glass lenses fragile, easy on eye damage in children. Resin lens astigmatism axial main requirements precisely, the distribution of the luminosity must be accurate, can not have a scratch on the lens, can not have bubbles and impurities, the degree of preparation of the child glasses must meet the standards promulgated by the State Quality Inspection. Refractive error should be awarded in the country within the scope of the requirements of the standard.
Finally, you must understand the precise grinding spectacle lenses and accurate optometry equally important must be in strict accordance with the grinding of glasses opened by doctor’s prescription glasses. So with Cheap Ray Ban Sunglasses to a regular hospital centers or specialized glasses company, and not just in the street vendors to purchase, or take someone Else's mess wearing glasses.
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