Contact Lenses Care

SHARP VISION

As many see it, the main advantage of hard lenses is that when fitted properly they provide the sharpest visual acuity for all the refractive errors—even better than spectacles can. It’s not uncommon for those who have nearsightedness, farsightedness, presbyopia, and most degrees of astigmatism to report 20/10 vision—that’s better than “normal”! Your prescription can be accurately ground into the front surface of a hard lens, and its smooth, firm, domelike undersurface, combined with the tears trapped beneath, forms a perfect refracting surface for the eye. A conventional soft lens, on the other hand, conforms to the shape of the cornea much like a tablecloth drapes over a table and so cannot completely correct astigmatism originating in the cornea. There are special new soft and gas- permeable lenses capable of correcting a relatively high degree of astigmatism, but hard conventional lenses are still the best for consistently correcting the higher amounts of astigmatism; besides, not everyone can deal with the soft lenses‘ disadvantages. Read the rest of this entry »

Spare or Replacement Lens. Whether you have insurance or not, you’ll have to pay for extra lenses. I advise my patients to buy a spare pair of lenses to keep handy for instant replacement.

Accessories and Solutions.Nothing lasts forever, and sooner or later you’ll need a new supply.

Polishing and Cleaning.Hard lenses can have scratches and accumulations removed by polishing to prolong their useful life. This can only be provided by a laboratory and should be performed twice a year. Unfortunately no similar procedure exists for thoroughly cleaning soft lenses, which must be maintained as well as possible by the wearer on a regular basis. Read the rest of this entry »