Athletes wear non-prescription sunglasses.
Some people opt for non-prescription lenses for fashion reasons. Shatter-proof non-prescription glasses are popular among athletes. Cyclists wear glasses to protect their eyes from debris and to protect their eyes from the wind. Squash players may wear glasses to reduce glare on the squash court and to provide protection against ball collision or breaking up an opponent's racquet. Gun lovers can wear glasses to reduce glare in outdoor environments. Most non-prescription glasses do more than one thing, and safety is almost always a primary concern. These non-prescription sunglasses filter out harmful UV rays.
Eye problems that may occur while driving.
Visual fatigue and xerophthalmia: when driving, the spirit and eyes are in a highly tense state, reducing the blink of an eye, which will easily cause eye fatigue and xerophthalmia. Flash glare -- car headlights and city light pollution -- can cause serious damage to the eyes. UV damage: UV radiation is strong when driving in the daytime, especially in the plateau and snow weather. Nocturnal myopia: nocturnal light is insufficient, so it can make the eye pupil dilate, causing nocturnal vision to drop influence driving safety.
Type of eyeglasses cloth
There are many kinds of cloth for glasses. There is mainly sheepskin eyewear cloth, and there is microfiber eyewear cloth. There are suede and double-sided cloth and so on. Professional eyewear cloth must use more than 200 grams of weight/per cubic centimeter of microfiber. This kind of raw material chemical fiber is fine, and tactility is soft, so it will not damage the lens. This kind of wipe cloth can be used on a computer screen. The two sides of the cloth are different, and the smooth side is used to scrub the lenses. Because the dirt on the lens is mostly small. The rough side is designed to give you more friction when you touch it with your finger, so you can use it more easily, and you can clean it more.
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Method of taking off the contact lens
Wash your hands before removing contact lenses, and be careful not to leave long fingernails, to avoid contamination of the lenses by bacteria and nail scratches. Look up, open the upper and lower eyelids with the left index finger and right middle finger. Pinch the middle and lower edge of the lens gently with the thumb and index finger of the right hand, and remove the lens. You can use the index finger first to move the lens down, and then gently pinch the middle and lower edge of the lens with the thumb and index finger belly, and take off the lens.
How Long Does It Take to Get Used to Varifocals?
When you get a new pair of glasses, you have to get used to them. So, how long does it take to get used to the glasses? Some people only need a couple of days to get used to them while some others may need up to two weeks.
It is normal if you can only see the frame rim of your glasses when you first wear them. The reason for this lies in the brain’s visual center. It needs to adapt the new and greatly improved visual conditions.