Lenses are good

    According to the survey “Do you wear glasses or contact lenses?” 53% of respondents have good eyesight. What is surprising, because most of the common people spend a lot of time at the computer, because of work, study, and just to relax. If you are in this 53%, then this article is unlikely to be useful to you, if not, I advise you to read it.

    Some misconceptions


    Lenses may impair vision.
    This is one of the most common and dangerous misconceptions. Lenses per se cannot impair vision. Lenses only help to focus the rays of light precisely on the retina, helping to achieve the desired visual acuity. They differ from glasses in that they are located directly on the eye.
    Lenses are like glasses. Wear and wear!
    For lenses, unlike glasses, you need constant care. Moreover, there are no eternal lenses. They differ in service life, but more on that later.
    In lenses, the eyes are more susceptible to infections.
    If you use one-day lenses, it is almost impossible to infect the eye with something. Lenses of longer wear must be processed according to the instructions, then dirt will not get into them and the chance of infection will be close to zero.

    About lenses


    image
    So, you decide to buy a lens. Which to choose?
    Lenses are different. I broke them into several classifications.
    According to the material
    Rigid are made of solid materials that independently preserve curvature. They are used to correct astigmatism of a large degree.
    Soft are made of polymers, are used more often and are more convenient than hard.
    By wearing time
    One - day - the most comfortable. Dressed in the morning, removed in the evening and threw it away. No mess with solutions.
    Replacement Lenses- a compromise between price and eye comfort. The wearing period is from 1 week to 3 months. Such lenses need to be treated with a special solution. For the eyes, they are better than traditional ones. Used by most people, both in Russia and abroad.
    Traditional lenses are the most affordable. Period of wearing from six months. Also need to be treated with a solution.
    Prolonged lenses - you can even sleep in them. They are made of silicone and hydrogel, therefore they are called silicone hydrogel. However, there are pitfalls. The pleasure of sleeping in the lenses is quite expensive. Solution processing is also required.
    By appointment
    Optical - the most popular. They are used to correct vision with myopia, hyperopia, astigmatism.
    Cosmetic- for the correction of various congenital or acquired as a result of trauma eye defects.
    Decorative - they do not improve vision, they change the color of the eyes. They are divided into tinting (changing the shade of only bright eyes), changing the color of the eyes (suitable for any eyes, giving any desired color) and Crazy lenses (you can put any logo on them, for example, Habr and go into them).

    Here are some examples of Crazy lenses.
    image
    Other lenses have other characteristics that are equally important. You also need to know about them when choosing lenses.
    Moisture content - the water content in the lens. It is measured in%. The more - the more comfortable. There are low hydrophilic lenses (moisture content up to 50%) and high hydrophilic lenses (more than 50%).
    The first ones are cheaper, less likely to tear, and protein deposits accumulate in them for a long time (there is less chance of catching an infection). The second is more comfortable for the eyes, they can be worn longer (although it is recommended no more than 12-15 hours).
    Oxygen Permeability (DKL) is an indicator of oxygen permeability. The higher - the better for health.

    About pricing


    Before buying lenses, I advise you to definitely make a diagnosis.
    It can be done from 0 (for example, in a local clinic, which I really do not recommend) to 2000 rubles. The average price for Peter is 500 rubles.
    The average cost of a pair of silicone-hydrogel lenses for a month is 500 rubles, just hydrogel lenses will cost about 250 rubles. Well, the coolest, one-day ones cost about 1000-1200 rubles.
    Colored lenses can be purchased for 700-800 rubles.

    Conclusion


    Although lenses are not so popular in Russia (0.03% of the total population use lenses), as, say, in the USA (15%), everyone can afford lenses. They are not as dangerous as they are described and very easy to handle. For those who want to see better, lenses are a great solution.

    Also popular now: