eye glasses and contact lenseses and green contact cat and contact are devices that correct refractive errors in vision. lenses lenses are mounted in frames lenses worn on the face, sitting mostly on the ears and nose, so that the lenses are positioned in front of the eyes. contact sfx appear to be worn in direct contact with the cornea, but they actually float theatrical on a layer of tears that separates them from the cornea.purposethe purpose of lenseses and contact is to correct or improve green the vision of people with nearsightedness (myopia), farsightedness (hyperopia), presbyopia, and astigmatism.precautions people allergic to certain plastics should not wear contact or lenses frames or lenses manufactured from that type of plastic. people allergic to nickel should not wear flexon frames. people at risk of being in accidents that might shatter glass lenses should wear plastic lenses, preferably polycarbonate.

eye glasses and contact lenseses and green contact cat and contact are devices that correct refractive errors in vision. lenses lenses are mounted in frames lenses worn on the face, sitting mostly on the ears and nose, so that the lenses are positioned in front of the eyes. contact sfx appear to be worn in direct contact with the cornea, but they actually float theatrical on a layer of tears that separates them from the cornea.purposethe purpose of lenseses and contact is to correct or improve green the vision of people with nearsightedness (myopia), farsightedness (hyperopia), presbyopia, and astigmatism.precautions people allergic to certain plastics should not wear contact or lenses frames or lenses manufactured from that type of plastic. people allergic to nickel should not wear flexon frames. people at risk of being in accidents that might shatter glass lenses should wear plastic lenses, preferably polycarbonate.