This comparison reports vision stability outcomes in long-term PMMA lens wearers using two refitting techniques, suggesting effective refitting methods.
Two techniques for fitting long‐term polymethyl methylcrylate (PMMA) lens wearers with a gas‐permeable hard lens are compared. These are: complete cessation of all lens wear for the period necessary to achieve stability in the patient's refraction and corneal curvature, and immediate refitting with a Polycon lens. Eleven patients who had worn hard contact lenses for at least 3 years and had wearing times of at least 8 hr per day were refitted with each technique. Refitting with Polycon lenses slowed but did not otherwise inhibit the recuperative changes taking place in the cornea after PMMA lens removal; vision was better and more stable with this group.
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Bennett et al. (1983) studied this question.
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