Glasses has now become a necessity for every person who has a problem with eye minus, plus the eyes, and the eyes of the cylinder. When viewed from the side of the material, now in buying glasses is not a problem anymore, because many glasses minus, plus, and the cylinders are sold under a variety of models and prices are very cheap.
The sale price of the glasses is fairly cheap, but if the glasses can protect your eyes? Do these glasses are made of materials - materials that are safe? If not, you should be prepared to pay more to treat disorders that will occur in your sight, according to a study of the dailymail, stating that the glasses - cheap sunglasses can increase the risk of vision problems permanently even such interference can cause the appearance of brain tumors.
Here are three reasons why cheap sunglasses dangerous: - anti Radiation
Sunlight has a wave ultraviolet radiation (UV-A and UV-B) that are harmful to the eyes. To protect the eyes that are part of the pupil will shrink when exposed to sunlight. Especially for sunglasses that really should have protection against UV-A and UV-B above 90%. The eyes of someone who wears sunglasses will lose the ability to shrink the pupil for sunglasses reduce light intensity. With the enlargement of the pupil of the eye, the UV-A and UV-B will fit easily and will lead to cataracts.
- Lens
Normal lens size should OD / R = 0, OS / L = 0, the size of the neutral and does not interfere with your vision. Cheap glasses are not in measuring the level of neutrality of the lens, the lens surface smoothness, and the alignment of the center point. This can cause eye pain, blurred vision, headache, multiple views, and can cause cataracts and brain tumors.
- Material Cat In Frame
Cheap sunglasses maker certainly would not pay attention to the level of safety. So most cheap sunglasses will use a paint that does not comply with existing standards and contained hazardous materials in them. The use of glasses with dangerous paint can cause your skin itching - itching, irritation, and cancer.
After reviewing the danger factor's glasses, then wise in choosing sunglasses before you buy, the way is to try the glasses to be purchased for approximately 2 to 3 minutes, to match the position, robustness, and sizes that should fit your eye. If it does not fit, then do not hesitate to cancel the intention to buy glasses.
Choose sunglasses that are sold by Optik Seis, because Optik Seis guarantee that sells glasses already standardized factors - factors above. In addition, the glasses are damaged can be replaced with the new glasses for the purchase is still in a period of one year.
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