13STUDY OF THE EFFECTIVENESS OF CK ONE-STEP LENSES A Study of the Effectiveness of CK One-Step Lenses for Correcting Myopia

Myopia (nearsightedness) may be corrected by using non-surgical and surgical tech-niques. Orthokeratology, the practice of wearing rigid contact lenses during waking hours, has been used to reduce myopia with minimal success. Recent advances in corneal mapping and contact lens technology have greatly improved lens fitting techniques. In the present study Precision Ocular Technology’s CK “One-Step ” lens-es were used to mold the corneas of 17 myopic patients. The subjects wore the lenses while sleeping in an effort to decrease their need for corrective lenses during waking hours. Each subject’s eyes were checked on days 1, 7, 30, and 60 after lens fitting for visual acuity, refractive error, corneal topography, and intraocular pressure (glaucoma test). Post-fit measurements were compared to initial values. Patients were surveyed after 60 days to assess comfort and satisfaction with the procedure. Fourteen patients completed the study through day 30 and had significant corneal flattening and significantly decreased myopia and increased visual acuity. The patients that dropped out of the study were all adults and were advised that the pro-cedure may be less effective for correction of myopia in adults. The remaining patients expressed only mild discomfort in wearing the lenses and reported satisfac-tion with the procedure