What are optical spectacles? Optical spectacles are spectacles specially designed to correct myopia, hyperopia or astigmatism in patients with refractive errors. Eliminate visual fatigue, protect and correct eye vision problems. According to the optical principle of lenses, they can be divided into four types: lenses, prisms, contact lenses and intraocular lenses. Through these lenses, we can not only clearly see the outside world, but also further control or treat the refraction in the eyes. Next, let's understand the characteristics of optical glasses.
Optical glasses are generally used for correcting visual acuity. For optical lenses, lenses are generally spherical. According to the convergence point of parallel light, they can be divided into convex and concave spherical lenses. Convex spherical lenses are used for correcting hyperopia or presbyopia, while concave spherical lenses are used for correcting myopia.
For a prism, it is usually composed of two non-parallel and angular lenses. Because of the characteristics of moving the object image to the tip, it is often used to treat some ocular muscle diseases.
Contact lenses are also called contact lenses, which are optical lenses attached directly to the surface of the eye. They can be divided into hard contact lenses and soft contact lenses. The former is usually made of glass, mainly used to correct refractive errors and other eye diseases.
Compared with the above three kinds of optical glasses, intraocular lens is more dangerous, because it is through the role of surgery. Implanting a lens with corrected refractive errors into the lens capsule is a common form of treatment for myopia, hyperopia and astigmatism.
Optical glasses are simply a kind of glasses used to correct the diopter of the eyes. Their appearance solves many life problems of myopia, hyperopia, presbyopia and astigmatism, and provides a series of most convenient, effective and comfortable living environment for people.
What is optical glasses? There are many kinds of optical glasses. In addition to ordinary frame glasses for myopia and contact lenses for cornea, there are also various protective glasses, cosmetic glasses and assistant devices for correcting mild myopia, all of which belong to optical glasses, and all of the lenses are ultra-thin perspective lenses.
started by sagemoda on 22 Aug 19
Optical glasses are generally used for correcting visual acuity. For optical lenses, lenses are generally spherical. According to the convergence point of parallel light, they can be divided into convex and concave spherical lenses. Convex spherical lenses are used for correcting hyperopia or presbyopia, while concave spherical lenses are used for correcting myopia.
For a prism, it is usually composed of two non-parallel and angular lenses. Because of the characteristics of moving the object image to the tip, it is often used to treat some ocular muscle diseases.
Contact lenses are also called contact lenses, which are optical lenses attached directly to the surface of the eye. They can be divided into hard contact lenses and soft contact lenses. The former is usually made of glass, mainly used to correct refractive errors and other eye diseases.
Compared with the above three kinds of optical glasses, intraocular lens is more dangerous, because it is through the role of surgery. Implanting a lens with corrected refractive errors into the lens capsule is a common form of treatment for myopia, hyperopia and astigmatism.
Optical glasses are simply a kind of glasses used to correct the diopter of the eyes. Their appearance solves many life problems of myopia, hyperopia, presbyopia and astigmatism, and provides a series of most convenient, effective and comfortable living environment for people.
What is optical glasses? There are many kinds of optical glasses. In addition to ordinary frame glasses for myopia and contact lenses for cornea, there are also various protective glasses, cosmetic glasses and assistant devices for correcting mild myopia, all of which belong to optical glasses, and all of the lenses are ultra-thin perspective lenses.
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