A non-surgical procedure using contact lenses to alter the shape of the cornea to effect a change in the refractive error.
Also known as ortho-K, this is a non-surgical procedure for changing the shape of the eye's cornea. The procedure involves wearing a series of GP contact lenses that progressively "mold" the surface of the cornea into a shape that provides for better vision. The procedure does not have a permanent effect. Therefore, just as orthodontic retainers keep your teeth from moving back to their original positions, "retainer" contact lenses must be worn periodically to keep the cornea from regressing back to its less desirable shape.
Also knowns as CRT. Fitting of hard contacts of differing curvature to achieve a temporary change in the shape of the cornea, temporarily correcting a refractive error. Go to Top
(ortho-k) Procedure in which a doctor fits you with special gas permeable contact lenses to reshape your cornea and correct errors like nearsightedness. Often, patients wear the lenses just at night.
Fitting of hard contacts of differing curvature to achieve a change in the prescription, although temporary. Go to Top | Close Window
Controversial nonsurgical contact lens procedure designed to eliminate nearsightedness and astigmatism. The procedure involves the programmed use of a series of rigid oxygen permeable contact lenses that are designed to gradually change the contour of the front of the cornea. The lenses are changed every two to eight weeks until the maximum desired result is achieved. Then, retainer contact lenses are worn as necessary to stabilize the shape. See Free Eye Tests.
the use of contact lenses to change the shape of the cornea in order to correct refractive error.
Orthokeratology (Ortho-K) is the use of rigid gas-permeable contact lenses, normally worn only at night, to improve vision through the reshaping of the cornea. This method can be used as an alternative to eyeglasses, refractive surgery, or for those desiring to not wear contact lenses during the day.
