When people reach a certain age, their eyes will become blurry. It is beneficial to wear reading glasses in time at this time. The most important thing about reading glasses is to choose the lenses. Of course, the frames are also very important. Because when choosing frames, you must match the pupil distance and choose the right material. For example, the frames should avoid skin allergies. Let's learn how to choose reading glasses. How to choose reading glasses 1. Meet the pupil distance, then talk about appearance: When choosing a frame, many people care about whether the frame is beautiful. But before that, you need to pay more attention to whether the size of the selected frame matches your pupil distance. At this point, you still have to go to a professional eyewear store to consult an optometrist and let them give you appropriate advice so as not to affect the quality and comfort of wearing due to the appearance of the frame. 2. Choose the right material: There are many materials for eyeglass frames, including alloys, plates, titanium, horns, precious metals and so on. Generally speaking, alloy frames are economical and affordable; plate frames are fashionable and beautiful, and can be matched with any style; nickel silver has beautiful color, ductility, fatigue resistance, corrosion resistance, and deep drawing performance. The frame is lightweight, corrosion-resistant and not easy to fade; it has become very popular in recent years. How to choose lenses Generally speaking, eyeglass lenses can be divided into two categories, namely glass lenses and optical resin lenses. The main raw material of glass lenses is optical glass. Under the same degree, the refractive index is higher than that of resin. Glass lenses are thinner and more fragile than resin lenses. It is more scratch-resistant than lenses made of other materials, but it is also heavier. Resin lenses are made of secretions from a variety of plants. Resin lenses are generally much lighter than glass lenses and have better impact resistance than glass lenses, but their surface hardness is lower and they are more easily scratched. Resin lenses and coated lenses are relatively soft, so you should be careful not to let the mirror surface come into direct contact with hard objects. When scrubbing, it is best to first clean them with clean water (or mix with a small amount of detergent), and then use a special test cloth or high-quality cotton paper to absorb the water droplets on the lenses. In addition, coated lenses should be used with caution in places with poor environmental conditions to avoid getting dirt on them that is difficult to clean. |
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