Four questions you should pay attention to before choosing sunglasses
Choose a pair of stylish and practical sunglasses that will not only shield you from the harsh sun when you are out and about, but also make them a must-have for fashionistas to accessorize with a spectacular look. But do you know what to look out for before choosing sunglasses?
1 Can everyone wear sunglasses?
The answer is no, because sunglasses are counterproductive for people with certain eye conditions. For example, in people with angle-closure glaucoma, wearing sunglasses can induce glaucoma; Color blindness, night blindness wearing sunglasses will make vision significantly decreased; Children under 6 years old visual function in the development stage, wearing sunglasses will lead to amblyopia; People with poor vision due to cataract or fundus disease are advised not to wear sunglasses.
In addition, the elderly are also advised not to wear dark glasses, because of the risk of dark light. Some people, on the other hand, are advised to wear sunglasses to reduce the damage caused by UV rays. People who have cataract surgery and have their pupils dilated due to certain eye diseases, those who are skiing or mountain adventurers, and drivers are advised to wear sunglasses.
2 Myopia and sunglasses can be both?
Myopia patients need to consider the diopter when choosing sunglasses. Low or moderate myopia patients can wear ordinary sunglasses without diopter on the premise of not affecting safety, while patients with high myopia (higher than 600 degrees) should wear sunglasses with diopter.
3. What should you consider first when choosing sunglasses?
Sunglasses should be selected according to their functions. According to their functions, sunglasses can be divided into polarizing mirror, sunshade mirror and sports mirror.
Polarizing lenses: Drivers and fishing enthusiasts recommend polarizing lenses, which eliminate glare from all directions and make objects look sharper.
Obscuration mirror: Obscuration mirror can selectively filter harmful blue light and ultraviolet light, while making other visible light as much as possible through the lens, suitable for macular degeneration, diabetic eye disease, excimer postoperative patients wear.
Sports mirror: Sports mirror frames are specially made, suitable for skiing, mountaineering crowd.
Before wearing sunglasses, the general population is advised to consult a professional ophthalmologist and choose sunglasses with UV protection labels to avoid unnecessary injuries.
4 What color sunglasses suit you best?
The lenses come in a variety of colors. Considering eye health, medium shades of gray and brown are the best. The selection of lens color should be based on the principle that the color of the surrounding environment is not distorted, the edge of the object is clear, and the signal light of different colors can be effectively recognized.
Gray lens can absorb any color spectrum evenly, wearing glasses will only darken the scene without obvious color difference; Tawny lenses filter out large amounts of blue light, improve visual contrast and clarity, and work well in polluted or foggy situations.
The color of the mirror worn by the driver should not be too dark, otherwise the visual signal will be delayed to the brain, resulting in the distortion of the sense of speed, so that the driver makes a wrong judgment, it is recommended to wear a pair of brown sunglasses.
