About this app

Eyeglasses are thin lenses for the eyes to normalize and sharpen eyesight (some are suspect and some are not) Now in addition to being a visual aid, glasses have also become a complementary style as well as a special tool to enjoy entertainment such as special three-dimensional glasses.

Glasses are frames that support two glass or plastic lenses that a person can use in sight to correct vision problems such as astigmatism, nearsightedness, and farsightedness. Visible correction is achieved through a special form of lens. The concave lens is curved inward and used to correct nearsightedness. While the convex lens is curved outward and is used to correct nearsightedness.

The degree of curvature and lens thickness is determined by the eye condition. An optometrist will prescribe the type of lens needed for eyeglasses after performing a series of vision tests.

Eyeglass lenses are made from a variety of materials. Each type of material has its own advantages. Therefore, when buying glasses, make sure you know which lens best fits your situation.
    Polycarbonate - Polycarbonate lenses are resistant to impact. This material is suitable for people who participate in sports activities or work in an environment where glasses are easily damaged.
    High index plastic lens - This lens is most often used by people with high-power lens prescriptions and requires thicker lenses.
    Trivex lenses - These lenses are resistant to impact, but are slightly thinner than polycarbonate lenses. This lens is more comfortable to use if you have to wear glasses in a long period of time.
    Multifocal - Some people have a combination of vision problems requiring several different recipes. In some cases, these recipes can be combined in one lens. If two recipes are combined, then the lens is called a bifocal lens. If three recipes are combined, the lens is called a trifocal lens.
You can also choose the type of lens coating to suit your needs. Coating materials can help you to see better in certain situations. Some commonly used coating materials are:
    Colored coatings - these coatings can help vision in an environment with good lighting, such as on a sunny day or when in a room with lots of lights.
    Anti-reflective - This coating is similar to a color coating, but is especially designed to block out the blinding light from a light source.
    Anti-scratch - Almost all kinds of modern glasses are scratch resistant, but you certainly want to make sure that the glasses you choose have this type of coating.

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