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Orthokeratology ( also known as orthok, ok, corneal reshaping, corneal refractive therapy, and vision shaping pdf treatment) is an alternative method to correct refractive errors using custom- designed rigid lenses to temporarily modify the curvature of cornea. modern ortho- k lenses consist of a pdf central base curve that is fitted. patient satisfaction was summarized. jim rohn orthokeratology ( orthok) is the practice of changing the curvature of the cornea with specially designed gas permeable ( gp) contact lenses worn while sleeping to alter the refractive state of the eye and to temporarily improve the wearer’ s unaided vision.
orthokeratology ( ortho- k) is a special rigid contact lens orthokeratology pdf worn at night to achieve myopic reduction and control. 1, 2 modern orthok technology uses breathable rigid lens material and reverse geometry desi. this review provides an overview on prescribing ortho- k, including clinical consideration on patient aspect and lens design; its clinical outcomes; and clinical efficacy and safety. 32 the lenses are worn overnight, and the most common application is to reduce daytime myopia by flattening the central cornea. orthokeratology is a treatment that uses specially designed, reverse geometry, gas- permeable contact lenses orthokeratology pdf to tempo- rarily reshape the corneal surface.
this publication is an educational tool intended to provide an overview for the use of specialized contact lenses for overnight orthokeratology ( corneal reshaping) treatment for the temporary reduction of myopia. orthokeratology ( ortho- k) is the process of deliberately reshaping the anterior cornea by utilising specialty contact lenses to temporarily and reversibly reduce refractive error after lens.
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