|
|
(Lenses made from polycarbonate, the same type of plastic used for the space shuttle windshield, are about 50 times stronger contactscomparison than other lens materials.) Also, people at risk of receiving electric shock should avoid metal frames.People employed in certain occupations may be prohibited from wearing contact, or may be required to wear safety contactscomparison and contactscomparison eyewear over the contact. Some occupations, such as construction or auto repair, may require safety lenses and contactscomparison safety frames. Physicians and employers should be consulted for recommendations. Description Eyes are examined by optometrists (O.D.) or by ophthalmologists (M.D. or D.O.--doctor of osteopathy). Prescriptions, if necessary, are then given to patients contactscomparison for glasses. The glasses are generally made by an optician. A separate lenses-fitting exam is necessary if the patient wants contact, because an lenses prescription is not the same as a lenses prescription. The primary drawback to wearing contact, especially for children, is the requirement that they be cleaned and disinfected daily in order to prevent an infection, which could result in permanent damage to the eye. Careful choice of lenses and consistent lens care will minimize the risk of infection. Wearers of best lenses are the least prone to infection but the lenses are much less comfortable, more expensive, and can pop out of the eye more easily than lenses. Daily wear lenses put the wearer at a slightly higher risk of infection because they absorb more external contactscomparison liquids and airborne contaminants. lenses wearers should seek immediate attention if they experience eye pain, a burning sensation, red eyes, intolerable sensitivity to light, cloudy vision, or an inability to keep contactscomparison the eyes open.avoid infection, it is important for lenses wearers to exactly follow their instructions for lens insertion and removal, as well contactscomparison as cleaning. Soft lenses wearers should never use tap water to rinse their lenses or to make-up solutions. All lenses wearers should also always have a pair of glasses and a carrying case for their contacts with them, in case the contacts have to be removed due to eye irritation.contact can be a lot cheaper when you buy them through the mail than when you buy them through your eye doctor. Trouble is, some doctors are contactscomparison keeping a tight grip on lens prescriptions because they''d rather keep the profits in their practice.Rayna Brachmann, a 26-year-old legal researcher from recently switched to Biocompatible''s Proclear Compatibles lenses, which have a high water content that makes them well-suited to desert climate. But her optometrist balked when she asked if the lenses were available from another source.
|