The weather is becoming warmer and warmer, the sunshine is also becoming brighter and brighter, so, it’s time for the presence of sunglasses! It’s believed that every young lady should have more than one pairs of sunglasses. But the wrong glasses or the inappropriate way of wearing may hurt your eyes and not anyone suits for wearing them.
What are the harms caused by wearing sunglasses?
1. Can cause acute onset of glaucoma
Wear sunglasses because, after entering the eye pupil can reduce natural light, causing the anterior horn to narrow, causing drainage, time grew, easily induced angle-closure glaucoma acute onset. Patients will appear envy, eye pain and headache, eyesight sharply, even with the systemic symptom such as nausea and vomiting. So glaucoma patients with glaucoma or doubt unfavorable people wear sunglasses.
2. Can cause weak eyesight
Children under 6 years old of visual function is not mature, wearing sunglasses for a long time, cannot be effectively macula of stimulation. It can also affect vision of further development, even form weak eyesight. So the children under 6 should not wear sunglasses.
3. Can cause sight fatigue
Some people wear sunglasses regardless of time and circumstance, whether in outdoor or indoor light, even in the twilight, in the evening or watching movies and TV. Doing so would increase the burden, cause serious symptoms such as eye strain, inspect content fuzzy marbling grading, more seriously, it still can appear giddy, not long seeing problems.
4. Can cause sunglasses syndrome
With the sunglasses syndrome in fashionable young people, they loved, frame side slants thick and heavy weight of large frame sunglasses. This kind of wear glasses for 1-2 weeks later, the wearer appear respiratory symptoms between two eyes and cheeks, numb, such as dull sometimes nasal discomfort feeling, like cold.
There are people feel like worms crawling on face, numbness, maxillary incisor gums acid bilges feeling unwell, eyes. This is because people’s facial feeling is mainly composed of trigeminal nerve, trigeminal nerve of inferior orbital tip of the team is inferior hole, wide thick, heavy weighs sunglasses tend to live under the pressure of the trigeminal orbit, causing symptoms.
When you choose to buy sunglasses, the following tips you should pay attention to:
1. You should choose regular manufacturers or optical shops to buy sunglasses with uv function. The glasses selling by small vendor’s stand, often cannot achieve uv standard, you had better not choose them.
2. When choosing the lens, you should choose the one with smooth surface, flawless, corrugated, bubble, grinding mark. When lied in horizontal direction, the lenses shall without warping observation lenses. Don’t choose lens with uneven or have traces of bubbles.
3. Color choosing problem. Buy lens to wear after watching the color of the surrounding edge distortion, objects, can effectively identify clearly different color signal for the principle. The depth of color, lens and depending on activity places, with moderate depth for good, such as weak gray, light brown color, evanescent wait, these sunglasses for infrared, ultraviolet absorption is good. Of course, if required, shading result should choose color deep lens. But the bike or drivers cannot choose color too deep lens, otherwise cannot effectively identify different colors of the traffic lights.
4. Choose sunglasses also consider it with eyes, faces, and the size of the match between the eyebrows and nose. Big eyes to choose a big picture frames sunglasses, small eyes, small frame of the choice of sunglasses, fat circle for the person face wore sunglasses, bulky framework for the people round face slender frame, the face of the man with sunglasses and appropriate chooses the narrow square frame sunglasses.
