Are You Wearing The Right Sunglasses?

December 11,2021

A pair of sunglasses looks very simple, that is, two pieces of colored glass or plastic are added to the plastic or metal frame. There are many differences between two glass lenses, which will have a great impact on you when you use sunglasses.




The role of sunglasses


  • Ultraviolet rays can damage the cornea and retina. When the eye receives too much light, it will naturally shrink the iris. High-quality sunglasses can filter out up to 97% of the light that enters the eye to avoid damage.


  • Light-colored sunglasses are a fashionable variant of sun-shading mirrors. Although their blocking effect on sunlight is less than that of sun-shading mirrors, their fundamental purpose is to play a decorative role. Relying on rich colors and trendy styles, they are favored by young people. In the past few years, fashionable women have even loved this kind of sunglasses that are suitable for matching with all kinds of clothing.


  • Special sunglasses are an enhanced version of ordinary sun-shading mirrors. Its various indicators are higher than ordinary sunglasses and have a greater function of blocking glare. Generally, they have different requirements for special occasions. They are commonly used in outdoor sports with strong sunlight and good vision, such as beach, skiing, mountain climbing, and golf.


People who should not wear sunglasses


  1. Children


Children under the age of six have not developed their visual function to a normal level; If they wear sunglasses for a long time, it will affect the children's visual development and may even lead to amblyopia.


  1. Glaucoma


After wearing sunglasses, the visible light entering the eye decreases, and the pupils will naturally open. This change in pupils does not affect healthy people, but for glaucoma patients, it increases the obstruction of intraocular aqueous circulation, which can easily induce acute attacks of glaucoma, such as red eyes, eye pain, headache, nausea, vomiting, sharp decline of vision and so on. Therefore, people with glaucoma or suspected glaucoma should not wear sunglasses.


  1. Color blindness


Wearing sunglasses does not have much effect on people who are fully colorblind. However, some color-blind patients cannot distinguish only a few colors, and they are even more unable to distinguish colors when they wear sunglasses.


  1. Night blindness


Night blindness is due to the lack of vitamin A, which will affect vision in dim light. Therefore, sunglasses will affect the vision of patients with night blindness.


  1. Amenities


Wearing sunglasses will aggravate the optic nerve conduction disorder in patients with optic nerve amenities and affect the recovery of the condition.


Misunderstandings of sunglasses


Myth 1: the darker the lens color, the more eye protection


Sunglasses are mainly used to prevent UV damage to the eyes. Because the ultraviolet light may induce corneal opacity, cataracts, pterygium, and so on. Many people think that the darker the sunglasses, the better.


But this is not the case. Wearing sunglasses that are too dark will do more harm to your eyes. Because dark glasses will not only darken our vision but also enlarge the pupil. In this way, more ultraviolet rays pass through the pupil area, and the damage range to the lens and retina will become wider, which is easy to induce glaucoma and cataract.


Myth 2: sunglasses with polarizing lenses are not good


In addition to the color of the lens, the material of the lens also has a great impact on the glasses. The polarizing lens is made of synthetic resin as light and precise as a contact lens. At present, it is a relatively ideal choice for sunglasses.


Glass lenses, with good quality, can only block 60% - 70% of harmful light, and ordinary lenses can only block 50% of harmful light. Therefore, when purchasing sunglasses marked with anti UVA, UVB, and CE marks, we can ensure that they block certain ultraviolet rays.


If you are looking for an Acetate Sunglasses supplier, we look forward to being your choice.


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