Eye glasses refer to lenses that have frames for maintaining them on the eyes. They are also called spectacles or simply as glasses. They are worn by people of different ages for various reasons. Modern technology has allowed incorporation of different designs in them allowing a single device to serve several purposes. In San Antonio eye glasses are designed and made by experts in eye care and vision problems. This makes products in the area to be of good quality.
The use for which these articles are meant is used to categorize them. Main categories are safety, 3D, corrective, sunglasses, and fashion articles. Refractive errors in individuals suffering from vision impairment use corrective lenses to correct the defects. The products eliminate effects caused by eye conditions such as myopia, hypermetropia, astigmatism, and presbyopia. This is achieved through bending light rays that pass through the glass. Optometrists or ophthalmologists make the prescriptions for all designs of glasses. Lensmeter is the device used in verification of the accuracy of prescriptions.
Safety glasses are special products specifically meant for preventing injuries and contamination caused to the eyes. They keep liquid and solid substances away from the sensitive organs in different working settings. Plastic used to make their lenses is shatter-resistant. Goggles are sometimes used as replacements for welding helmets when helmets cause discomfort or inconvenience. Goggles like those ones contain dark lenses. The lightweight nature and flexibility of nylon-framed products make them applicable by athletes during training and competitions.
Bright light and UV radiation can be harmful to eyes hence wearing sunglasses is sometimes necessary. Such products incorporate lenses that are photosensitive. Their color changes from clear to dark in bright UV light. This way, the lens is able to block off excess light from passing through it to the eyes. Horizontally polarized beams are also removed by modern products because they have light polarization capability.
Today, glasses are articles for hiding eyes or serving a style or fashion. They are worn by various celebrities and artists to identify and separate the individual from movie characters acted by them. People with impaired vision also use them for purposes of cosmetic
Technology has made it possible for lenses to be made from high-tech plastics as opposed to glasses as was traditionally the case. High-tech plastics have several advantages over glass. Some of the advantages include being light, durable, thinner, scratch-resistant, not easily breakable, and ability to be treated. The lenses are therefore classified into various classes such as trivex, photochromic, aspheric, polarized, polycarbonate, and high index plastic lenses.
Each class of lens is used to make products for use in different conditions and environments. Polycarbonate lens is impact resistant making it useful for use by athletes and children. Trivex lens has similar properties as polycarbonate but it is thinner, lighter, and provides better vision correction. The plastic it is made from is also relatively newer.
High index plastic lens is designed to suit strong prescriptions. Their curvatures are made of differing degrees. The nature of curvature distinguishes it from traditional lenses which are normally spherical. Usable surface in aspheric lens is larger because of the nature and shape of the surface.
The use for which these articles are meant is used to categorize them. Main categories are safety, 3D, corrective, sunglasses, and fashion articles. Refractive errors in individuals suffering from vision impairment use corrective lenses to correct the defects. The products eliminate effects caused by eye conditions such as myopia, hypermetropia, astigmatism, and presbyopia. This is achieved through bending light rays that pass through the glass. Optometrists or ophthalmologists make the prescriptions for all designs of glasses. Lensmeter is the device used in verification of the accuracy of prescriptions.
Safety glasses are special products specifically meant for preventing injuries and contamination caused to the eyes. They keep liquid and solid substances away from the sensitive organs in different working settings. Plastic used to make their lenses is shatter-resistant. Goggles are sometimes used as replacements for welding helmets when helmets cause discomfort or inconvenience. Goggles like those ones contain dark lenses. The lightweight nature and flexibility of nylon-framed products make them applicable by athletes during training and competitions.
Bright light and UV radiation can be harmful to eyes hence wearing sunglasses is sometimes necessary. Such products incorporate lenses that are photosensitive. Their color changes from clear to dark in bright UV light. This way, the lens is able to block off excess light from passing through it to the eyes. Horizontally polarized beams are also removed by modern products because they have light polarization capability.
Today, glasses are articles for hiding eyes or serving a style or fashion. They are worn by various celebrities and artists to identify and separate the individual from movie characters acted by them. People with impaired vision also use them for purposes of cosmetic
Technology has made it possible for lenses to be made from high-tech plastics as opposed to glasses as was traditionally the case. High-tech plastics have several advantages over glass. Some of the advantages include being light, durable, thinner, scratch-resistant, not easily breakable, and ability to be treated. The lenses are therefore classified into various classes such as trivex, photochromic, aspheric, polarized, polycarbonate, and high index plastic lenses.
Each class of lens is used to make products for use in different conditions and environments. Polycarbonate lens is impact resistant making it useful for use by athletes and children. Trivex lens has similar properties as polycarbonate but it is thinner, lighter, and provides better vision correction. The plastic it is made from is also relatively newer.
High index plastic lens is designed to suit strong prescriptions. Their curvatures are made of differing degrees. The nature of curvature distinguishes it from traditional lenses which are normally spherical. Usable surface in aspheric lens is larger because of the nature and shape of the surface.
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You can get a review of the benefits of wearing San Antonio eye glasses and more information about an experienced ophthalmologist at http://www.ophthalmologysa.com now.
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