In today's world, the number of people with low vision is growing every day. In order not to see the world blurred, people have to turn to doctors - to choose the right glasses for vision. An optometrist will help assess visual acuity, talk about the main features of using this correction method and write a prescription that you can already contact the optician with.
The selection of points right in the store is now a reality
Even if you don’t like going to district clinics, this is not a problem. Modern storerooms offer not only a wide selection of glasses, but also services for their selection. The staff of many opticians has the necessary equipment for assessing visual acuity, eye condition, measuring the distance between the pupils, with the help of which a qualified optometrist working there will help you choose glasses for vision. Your task will only be to choose your favorite frame.
Frame selection: unknown subtleties
If you plan to
wear glasses constantly, then do not take the first frame that comes across. It will depend on her whether you buy stylish glasses for vision or purchase a model, like a neighbor’s grandmother. Try on several options, choose the one that suits you best. Pay attention to whether it is convenient for you in the selected model. Ideally, you should not feel the frame on the bridge of the nose at all, and the ears of the glasses should not press. The nose pads that many models are equipped with must be easily adjustable and installed so that the glasses do not warp or fall off. Imagine: if, for example, you have myopia, then you will have to spend about 16 hours wearing glasses every day, the slightest discomfort by the end of the day will cause wild fatigue and irritability. In addition, do not forget that the frame must be reliable: it is better to pay a little more expensive, but choose a more durable material. Indeed, glasses for vision can not be protected from falls, from falling into children's hands, or simply from the fact that someone can accidentally lean on them with their hands or even sit down on them.
Choosing the best lenses
Having decided on the frame, it is necessary to proceed to the selection of lenses in glasses for vision. Many believe that this should be done by an optometrist. But the doctor only selects the required number of diopters, determines the necessary distance between the centers of the lenses, but the material from which they will be made will have to be chosen independently. In modern optics you will be offered classic glass and plastic glasses.
Advantages and disadvantages of various lenses
Nowadays, most people opt for ordinary glasses, because they do not grow turbid and can hold ultraviolet light. In addition, ordinary glasses can make photochromic, and they will darken in the sun, performing at the same time the role of sunglasses. Glasses are also covered with special anti-glare and polarization compounds, so special glasses have appeared for working at a computer and driving a car. But glasses for sight, male or female, with glass lenses have disadvantages. So, the glass is quite fragile: one unsuccessful fall on the floor and you have to go to the optics for new glasses. Also, glass lenses are quite heavy and it will not be possible to avoid traces on the bridge of the nose with constant wearing of glasses. Plastic (polycarbonate) lenses are 2 times lighter than glass, they are quite difficult to break, but it can be scratched. In addition, people suffering from astigmatism can only use polycarbonate, because it is possible to make dioptric lenses of double curvature from it.