How to Choose a Good Pair of Lenses?

There are more and more myopical people. At the same time, many people are confused when buying glasses. They don't know where to start, especially as the core part of glasses - lenses. How can we choose a good pair of lenses for ourselves? If you want to create a perfect wearing effect, you need to know what factors will affect the visual effect and comfort. The clarity, transmittance, face type, thickness, weight, function, dust and water resistance of the lens will affect the wearing experience.

Selection criteria

In 1990, the international standard of refraction was adjusted from 50 degrees to 25 degrees. In fact, the main reason that medical optometry uses 25 degrees as the advanced adjustment of refraction is still based on the consideration of processing technology level, cost of glasses suppliers, inventory of optical lenses, storage space and clinical workload of ophthalmologists. Of course, due to the accommodation mechanism of the human eye itself, even if the refraction is not accurate, the patient will obviously not feel uncomfortable.

However, with the continuous development of science and technology, and the continuous improvement of optometry technology and equipment, the material of spectacle lenses is becoming more and more excellent. In the near future, 5-degree accurate refraction will replace the traditional 25 degrees optometry, and the medical fitting system with 5-degree advanced photometry for spherical lens and cylindrical lens and corresponding lens products are also emerging.

Specifically, many patients can't balance their eyes with traditional 25 degrees optical lenses. The traditional method is to keep the dominant eye slightly clear, which makes the binocular vision not clear, the eyes are easy to fatigue, the degree of myopia increases rapidly, and the growth rate of myopia in both eyes is different, so it is easy to form anisometropia, and even form strabismus and amblyopia in severe cases.

Selection of coating

Coating can strengthen and even increase the performance of lenses, but it is easy to be ignored when choosing lenses.

Crystal coating

Based on bionics principle, crystal coating is a revolutionary coating with water resistance, stain resistance and stain resistance, which greatly increases the contact angle between water droplets and mirror surface. When the water splashes on the surface of the lens, it will slide like    hitting the lotus leaf. Keep the lens clean at all times.

Blue coating

It is a wise choice for users of digital products to effectively block harmful blue light that may lead to retinal diseases and sleep disorders, retain beneficial blue light, and improve visual clarity when using digital devices. Anti-blue-light lenses and anti blue glare glasses uses anti blue light coating.

Crystal transparent coating

Compared with traditional coating, transparent coating has lower reflection, higher light transmittance and superior visual quality, giving you a better and clearer vision.

Aurora coating

Aurora coating adopts full-time protective light sensing technology to prevent glare, reduce glare interference, optimize visual contrast and improve eye comfort. It is often used in anti-glare glasses for computers and anti-glare blue cut glasses.

Selection of practical functions

Life needs to face a variety of scenes, such as outdoor play, office, learning, using electronic products, driving, sports. However, no pair of lenses is omnipotent. Different eye scenes require different lenses, so we need different lens functions to match the needs of different occasions. Only when the function matches the scene can the lens play a relative role and make you adapt faster. When we go out, we need to wear bifocal polarized sunglasses. Some elderly people need to wear sport reading glasses when they exercise.

Besides, Multifocal progressive lenses with multiple focus, can obtain a better field of vision, far, medium and close switching, no dizziness, no eye swelling. Progressive multifocal reading glasses have gradually become the main equipment for the elderly.

To sum up, when we buy glasses, we don't just need a simple lens with power. According to everyone's habits and scenes, there should be matching lenses. Only by doing "the right medicine to the case", can we effectively correct refraction and protect our glasses more effectively. I hope you can buy the best reading glasses or best anti blue glasses that are most suitable for you.