Are there any taboos in wearing sunglasses?
The following people should pay extra attention when using sunglasses:
Glaucoma patients: When wearing sunglasses, the amount of visible light entering the eye decreases, and the pupil will naturally dilate. This change in the pupil has no effect on healthy people but for glaucoma patients, it has increased the obstruction of aqueous humor circulation in the eye. And is easy to induce acute glaucoma attacks, like red eyes, eye pain, headache, nausea, vomiting, sharp decline in vision, and other symptoms. Therefore, sunglasses are not recommended for people with or suspected glaucoma.
Color blindness patients: Wearing sunglasses did not have a big impact on people with achromatopsia. But some people with dichromatic vision lack the ability to distinguish only a few colors, and when they wear sunglasses, they can't distinguish colors even more. Still, people with night blindness and neuroretinitis do not suit to wear sunglasses.
Do not wear sunglasses indoors.
Because sunglasses put your eyes in relatively dim light, your pupils will subconsciously dilate and your vision will be affected. In order to see more clearly, people naturally make efforts to watch the object, for a long time, the eye adjustment is excessive, easy to produce visual fatigue and photophobia, and other symptoms.
How to choose sunglasses lenses?
When a certain type of lens absorbs other wavelengths of light and only passes through a certain wavelength of light, it will appear a certain color. And when we see the world through these colored lenses, it's like taking a picture with a filter. Therefore, different colored lenses mean different things to the user. From a professional point of view, tan and gray lenses are the first choice. These two colors filter well, color perception is good, and can better distinguish a variety of colors.
The tawny lenses are soft in tone, which makes the eyes less tired. In the case of air pollution and fog, these sunglasses can increase the contrast of light and shade, having a good effect. Grey lenses are mild and natural because they can be balanced to any chromatographic absorption. Viewing the scene will only become dark, and there will be no obvious color difference. It can show more real natural feelings, suitable for most people. Dark green lenses can increase the green light reaching the eyes so that the wearer has a cool and comfortable feeling, suitable for people who are easy to have eye fatigue. But sometimes the color of the scene is changed by passing through green lenses. Yellow, red, pink, and light blue should be chosen with caution because they are more decorative than practical, which can affect the human eye's ability to distinguish surrounding colors to a certain extent.
What should I pay attention to when using sunglasses?
It is not advisable to wear sunglasses outdoors for a long time. Take them off indoors. Driving friends encounter a big temperature difference between inside and outside the car. When windows and glasses fog up, you should bring the car to a safe stop and dry your sunglasses carefully. We should avoid contact with perfume, insecticide, and other chemicals when wearing the polarized lens, so as not to cause damage to the lens. During driving, wear polarized sunglasses. Do not put the polarizer on the control platform to avoid distortion of the polarizer caused by high temperature. Sunglasses are more than just fashion accessories to show off your personality. They're also a great way to protect your eyes. If you choose the wrong sunglasses, you will lose the effect of sunglasses. Or it will produce dizziness, eyes, and other symptoms like swelling. Sometimes it can produce a slow response to distinguish color and Illusion of color discrimination and unequal walking vision symptoms, causing traffic accidents and so on.
The choice is undue, light can produce giddy, eye acid bilge to wait for not to get used to the symptom such as heavy criterion, still can produce reaction sometimes slow, distinguish color illusion and walk to see content unequal symptom and cause traffic accident to wait. Pay attention to design when choosing sunglasses so a while. Do not ignore its immanent quality.