Not only as a sweetener appearance, sunglasses also have health benefits, namely to protect the eyes from exposure to ultraviolet (UV) rays that can cause eye damage. For optimal benefits, know the various types of sunglasses and how to choose them.
Exposure to ultraviolet light in the long term can cause damage to the eye, ranging from damage to the skin surface of the eyelids, to the inner eye, such as the cornea, lens, and retina.
Research also states that ultraviolet light can increase the risk of pterygium, cataracts, macular degeneration, photokeratitis, and some types of eye cancer.
Various KindsEyeglasses Black
In addition to protecting the eyes from UV rays, sunglasses also have their respective functions based on the type of lens. Here are the types of glasses that you can choose according to your needs:
1. Glasses with polarizing lenses
Glasses with polarized lenses have the function of reducing the glare caused by the surface of the water when exposed to reflected light. This type of glasses is very useful for driving during the day.
2. Glasses with lenspolycarbonate
The polycarbonate material embedded in the lens of the glasses has a function to protect the wearer who likes to do team sports, such as volleyball. The reason is because glasses with this type of lens have a strong resistance to impact.
3. Glasses with lenses for block blue
Glasses with this lens function to see distant objects or objects that are blocked by fog. This type of glasses is usually used by hunters, sailors, pilots, or people who like to ski.
4. Glasses with lensphotochromic
These are glasses whose lenses can adjust the amount of light exposure. For example, when exposed to large amounts of light, glasses with this type of lens will turn dark. Conversely, at night, when the sun is no longer there, the lenses of these glasses will be bright.
5. Glasses with gradient lenses
Glasses with gradient lenses are divided into 2 types, namely single and double gradient lenses.
A single gradient lens is a lens that is darker at the top than the bottom. This lens is able to reduce glare, so the wearer can see objects clearly. This type of glasses is good for use while driving.
Meanwhile, a dual gradient lens is a lens in which the bottom and top are dark, while the center is lighter. You can choose a dual gradient lens if you often do water-related activities, such as sailing.
How to ChooseKglasses Hblack right
Regardless of the type of lens, here are general guidelines for choosing the right sunglasses:
- Choose sunglasses whose lenses can block 99–100% of UVA and UVB rays. This can usually be seen in sticker or the label on the glasses.
- Choose sunglasses with frames large and circular, to cover the eye and the surrounding area well.
- Choose sunglasses that have a dark color or lens
- Choose sunglasses whose lenses are made of plastic because they are more impact resistant.
In addition, it should also be remembered that there are no sunglasses that can protect the wearer from light that is too bright and has a strong intensity. Therefore, if you are often exposed to strong light during daily activities, such as welding, you must wear special equipment. to protect the eyes.
If you are having trouble deciding on the best sunglasses for you to choose, don't hesitate to consult a doctor about this. That way, the doctor can recommend sunglasses that suit your condition.