Harms of Poor Sunglasses

In the bright sunlight of this summer, all people have already worn sunglasses in different colors. But we need to remind you that the protection of eyes is the essential thing of you, since the improper selection and wearing of sunglasses may harm your eyes, and not everyone is suitable to wear sunglasses.

First, Poor-quality sunglasses can induce acute attack of glaucoma. After wearing sunglasses for a long time, the visible light that enters your eyes will reduce gradually, so the pupil will naturally open by itself, resulting in a narrow anterior chamber angle, which as a consequence will easily induce acute angle-closure glaucoma attack suddenly. Normally, the patients will have eye pain, headache, and rapid decline in visual acuity, and even accompanied by nausea, vomiting and other symptoms. Therefore, patients with glaucoma or suspected people are recommended not to wear sunglasses.

Second, poor sunglasses can lead to amblyopic. Children under the age of 6 have not yet fully mature in visual functions. After a long-term wearing of sunglasses, macular fundus can’t be effectively stimulated, which will affect the further development of their vision, and even worse, it will induce the formation of amblyopia. Therefore, such children are not suitable to wear sunglasses.

Third, poor quality sunglasses can cause visual fatigue. Some people, regardless of time and places, whether indoors or outdoors, regardless of the strength of sunlight, even in the evening, during nights as well as watching movies, are also wearing sunglasses. By doing so, they will increase the burden on eyes, causing eye muscle tension and unclear images; there will also be severe dizziness and other symptoms as well.

Fourth, poor sunglasses are likely to lead to syndrome, which is particularly prevalent among the young people. They prefer to wear wide, thick, and heavy-weight broad frames of sunglasses. People wearing such glasses for 1 to 2 weeks will emerge numbness between the eyes or the two parts of cheek, perception of symptoms such as retardation, nasal breathing, as suffering from a cold.

But how can people buy the good quality sunglasses?

First, you should select at regular glasses shops for formal anti-UV sunglasses created by formal manufacturers. Glasses sold by street stalls, hawkers often can’t meet the criteria for protection against ultraviolet.

Second, pay special attention to the lens surface which must be smooth, ripple-free, flawless, no bubbles and so forth. While in the choice, you’d better place lens flat, so as to observe from the horizontal direction to see whether warping or not.

Third, in the choice of lens colors, depending on different venues, the general depth is better to be medium, such as light gray, light brown, light green and so on; all these sunglasses have better ultraviolet absorption functions. Of course, if you require a strong shading effect, it should be a better choice of darker lenses. However, those who ride or drive cannot choose too deep colors, or they cannot effectively identify the different colors of traffic lights.

In conclusion, the poor sunglasses have great negative effects on your eyes. So obtaining a pair of good quality sunglasses is the most important thing of you, especially in hot summers.