contacts

Are you in the market for some new contacts? Are you looking for quality contacts by Biomedics? Check us out. We have a comprehensive selection of contacts by all the major manufacturers including Biomedics. - Look here

In the early days of hard Lenses, many wearers found themselves uttering this alarm, then dropping to their hands and knees to search for the wayward piece of plastic. Of course, the lens always seemed to get lost in a room with wall-to-wall shag carpeting and guests parading about in high heels. Nowadays, the command for a whole room to freeze is hardly ever heard. The advent of soft Lenses, which cling to the eye''s surface, made this scenario less and less likely. The flexibility of soft lenses also made them easier to get used to and more comfortable to wear. New and anticipated improvements in lens materials promise to further increase the comfort and safety of contacts. Other innovations in lens design and materials could make Lenses available to a wider range of people with less-than-perfect vision.

Another phenomenon associated primarily with hard Lenses is "spectacle blur." When a hard lens is placed on the cornea, the surface topography of the eye is altered, so the patient may have visual disturbances with glasses immediately after removing the lens. Spectacle blur, contacts in general, is cleared in about 30 minutes, but use of more oxygen-permeable lenses minimizes the problem. Advantages of hard Lenses include favorable specific gravity (1.18-1.20) and refractive contacts index (1.49-1.50), excellent visual acuity, durability, ability to withstand weak alkalis or weak acids, and no sensitivity reactions when placed on the cornea. Hard lenses are also relatively resistant to the absorption of disinfectants, surfactant cleaners and environment pollutants; they are easy to handle during insertion and removal. Disadvantages of hard lenses include a longer adaptation time, poor oxygen permeation and ocular discomfort.

An added benefit is that soft lenses aren''t as likely as rigid lenses to pop out or capture foreign material like dust underneath. Extra-thin soft lenses are available for very sensitive people. While the contacts ability to hold water increases oxygen permeability of soft lenses, it increases their fragility as well. Rigid lenses generally give clearer vision. They can be marked to show which lens is for which eye. They don''t rip or tear, so they''re easy to handle. Also, rigid lenses don''t absorb chemicals, unlike soft lenses, which are like sponges. They''ll suck up any residues on your hands--soap, lotion, whatever. Both soft and rigid lenses offer bifocal correction. In some models, each lens corrects for near and distance vision. In others, one lens is for near vision, and the other is for distance. Middle-aged people who have good distance vision but need help for reading can get a monovision reading lens for one eye.

Are you in the market for some new contacts? Are you looking for quality contacts by Biomedics? Check us out. We have a comprehensive selection of contacts by all the major manufacturers including Biomedics.