Presbyopia lenses are better resin or glass
Source: Leader Vision | Date of issue: 2020-12-08 16:06:58 | Views: 13686
As people get older, their eyesight begins to decline slowly and they tend to age. If you have presbyopia, you need to wear reading glasses, otherwise it will affect all normal daily life, and myopia will become deeper and deeper. Wearing old glasses …
As people get older, their eyesight begins to decline slowly and they tend to age. If you have presbyopia, you need to wear reading glasses, otherwise it will affect all normal daily life, and myopia will become deeper and deeper. Wearing old glasses is the same as general myopia, but many elderly people are not very skilled in choosing materials for myopia glasses. What material should I use for reading glasses?
Reading glasses are mainly used to supplement the vision of middle-aged and elderly electronic optics products. Taking into account the inner age of the wearer, the spectacle frames are generally made of metal materials, most of which are made of beryllium bronze, which is aerospace materials. They are twice as good as ordinary metal materials in terms of corrosion resistance, abrasion resistance, and impact resistance. 35%.
The buffer block of the glasses frame can be made of materials with good layering, no allergic symptoms to the skin, and reasonable avoidance of falling. Silicone rubber can be selected for nose pads, which incorporates the basic principles of integrated manual service engineering.
The material of the old lens is recommended to be epoxy resin, which can reasonably consider ultraviolet, infrared, and glare. For middle-aged and elderly people, the adjustment and resistance of the eyes are weak. Only by filtering out harmful glare and protecting eyesight can eye diseases such as age-related cataracts and macular degeneration be prevented.
In addition, the degree of myopia of presbyopia is different from that of the eyes, and there is no need to wear glasses with too high myopia. Compared with glasses made of other materials, resin lenses have better anti-glare ability such as refractive index, transmittance, and UV blocking.
Reading glasses are usually solved by adding a film, or the design of aspherical lenses is lighter and thinner than ordinary spherical lenses, with blurred vision and wide vision, ensuring that patients have no obstacles to reading articles and working.
Regardless of which material you choose, when correctly measuring the diopter, you must first determine the degree of hyperopia, and measure the degree of nearsightedness of the reading glasses according to age, workplace and life patterns to prevent dizziness, headache, dizziness, vertigo and other discomforts during the entire wearing process. . In addition, when buying old glasses, please choose reliable glasses for myopia.
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