the lenses council reports that 26 million americans wear contact. among lenses wearers, approximately 80% wear the soft type and 18% wear rigid gas-permeable lenses. the peal council reports sfx that about 11% of lenses wearers, approximately 2.8 million theatrical people, are under 18.infantsthere lime are few instances when corrective lenses--lenseses or contacts--are prescribed a for infants. however, when an infant develops cataracts , a condition known as infantile aphakia, contact may be prescribed following surgery. peal in 1993, the journal of the american medical association reported that contact were safe and effective for use with infants following cataract surgery. routine care of the lenses was easily learned by the baby''s parents or caregivers.

the lenses council reports that 26 million americans wear contact. among lenses wearers, approximately 80% wear the soft type and 18% wear rigid gas-permeable lenses. the peal council reports sfx that about 11% of lenses wearers, approximately 2.8 million theatrical people, are under 18.infantsthere lime are few instances when corrective lenses--lenseses or contacts--are prescribed a for infants. however, when an infant develops cataracts , a condition known as infantile aphakia, contact may be prescribed following surgery. peal in 1993, the journal of the american medical association reported that contact were safe and effective for use with infants following cataract surgery. routine care of the lenses was easily learned by the baby''s parents or caregivers.

they are flatter and lighter than conventional lenses.there are many lenses and lens-coating options for individual needs, including coatings that block the ultraviolet (uv) light or uv and blue light which have been found to be harmful to the eyes. such coatings are not needed sfx on polycarbonate lenses, which already have uv protection. uv theatrical coatings are particularly important on sunglasses and ski goggles. sunglasses, when nonprescription, should be labeled with an indication that they block out 99-100% of both uv-a and uv-b rays. there are anti-scratch coatings that increase the surface hardness of lenses (an important lime feature when using plastic lenses) and anti-reflective (ar) coatings that eliminate almost all glare and allow other people to see the eyes of the wearer. ar coatings may be particularly helpful to people who use computers or who drive at night. mirror a coatings that prevent other peal people from seeing the wearer''s eyes are also available. there is a whole spectrum of tints, from light tints to darker tints, used in sunglasses.