If glasses are needed, parents will have another question: What is the difference between hundreds and thousands of lenses? Which is more important, lens or frame? Let Wenzhou Wanrun Glasses Co., Ltd. show you how to start from the lens. It has different transmissivity, refractive index, film, functions (anti fog, anti blue light, progressive film, etc.), so the price is different. And the framework. Whether the size and pupillary distance are appropriate and matched, and the size, shape, material and specification of lens ring will affect the comfort and correction effect of future wearing.
Generally, teenagers mainly choose lenses with good light transmission and blue light resistance. After wearing glasses, your vision must reach 5.0? It's not true. Teenagers should consider their near and far vision, diopter and life needs when wearing glasses. If adults wear glasses, they should also consider their professional characteristics and make appropriate adjustments. During optometry, the monocular vision should meet the standard vision (5.0=1.0). However, when wearing glasses, children can enjoy a comfortable viewing state.
These "vision saving" methods may not work "physical" vision correction is the desire of many parents, including acupoint stick, ok mirror, eye mask, etc. These physical methods can alleviate visual fatigue to a certain extent, but can not correct vision. Among them, OK mirror has played a certain role in slowing down the deepening of the degree. The eye guard can properly increase the eye distance and reduce visual fatigue. The above is some knowledge of children's glasses!