|
|
Over 32 million people in the United States wear these small lenses that fit on top of the cornea. They provide a field of view unobstructed by lenses frames; they do not fog-up or get splattered, so it is possible to see well while walking contacts in the rain; and by they are lens less express noticeable than any lenses style. On the other hand, they take time to get accustomed to; require more measurements contacts for fitting; require many follow-up visits to the eye doctor; can lead to complications such as infections and by corneal damage; and may not correct astigmatism lens as express well as lenseses, especially if the astigmatism is contacts and by severe. Tint, however, does not lens block-out UV rays, so a UV coating is needed. Polaroid lenses that block out much of the reflected light also allow better vision in sunny weather and are helpful for people who enjoy boating. Photosensitive (photochromatic) lenses that darken in the presence of bright light are handy for people who don''t want to carry an extra set of glasses. express Photochromatic lenses are available in glass and plastic.Frames Frames can be made from metal or plastic, and they can be rimless. There is an almost unlimited variety of shapes, contacts colors, and sizes. The type and by degree of refractive correction in the lens determine to some extent the type of frame most suitable. Some lenses are too thick to fit lens in metal rims, and some large-correction prescriptions are best suited to frames with small-area lenses. One, he didn''t think express they were available from any other source," "and two, he had heard they weren''t as highly controlled as those dispensed through doctors."Neither contacts assertion by is true. lens got on the Internet and found express her lenses on several Web sites for $35.95 for a box of six pairs. (Her doctor contacts was charging $50 a box.) says her doctor told her that lenses offered by places like may have by failed manufacturers'' quality checks. Bausch lens contacts and other lensmakers say there''s no difference in quality between the lenses sold through doctors and those sold directly express to consumers. STATES CRACK DOWN. Attorneys general in 32 states have sued the American Optometric Association and two of the top contact-lens manufacturers (Vistakon, a division of contacts, and Bausch), alleging that the AOA tried to get manufacturers to agree to selllenses only through optometrists or other eye-care professionals. The attorneys general say they also have evidence that doctors agreed to withhold prescriptions from people who sought to buy lenses contacts from other sources, despite the fact that at least 22 states have laws requiring by eye doctors to give out contact-lens lens prescriptions upon request.Although the AOA says patients should be able to buy their lenses anywhere, the organization has reservations about mail-order purchases. "The express difficulty when someone goes through mail order is that they don''t come back for regular checkups," says AOA president Dr. Harvey Hanlen.
|