Glasses knowledge！！！！
The composition and types of glasses:
Glasses are composed of lenses and frames, which are used to improve vision, protect eyes or serve as decoration. ?1
There are many types of glasses, including myopia glasses, hyperopia glasses, reading glasses, astigmatism glasses, etc. There are also special glasses for viewing 3D stereoscopic images or virtual real images.
Glass manufacturing technology:
Lens materials include plastic, metal, resin, etc.
Lens can be customized according to personal vision conditions, such as myopia, hyperopia, astigmatism, etc. ?2
Glass fitting skills and precautions:
When fitting glasses, you should choose a reputable brand, such as Zeiss, Essilor, and Mingyue. ?3
The degree of the frame should be considered when choosing the frame. When the degree is high, choose a small frame to make the lens thinner.
The optometry steps are indispensable, including machine optometry, precision adjustment, and trial adaptation.
Glass maintenance and use:
When cleaning glasses, you should first rinse them with running water, then use a paper towel to absorb the water, and avoid using alcohol or other cleaning agents that may damage the lenses. ?4
Glass cloth is not used to wipe glasses, but to wrap the lenses to prevent scratches. ?5
Avoid leaving glasses in high temperature environments, such as in cars and saunas on hot days, to prevent lens film from bursting.
Other related knowledge:
Glasses should be put on and taken off with both hands to avoid one-handed operation that may cause the temples to expand outward or the frames to deform.
Eating sweets and drinking too much carbonated drinks may increase myopia.
People with high myopia should avoid intense exercise to reduce the risk of retinal detachment.
