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Arlene Gwon, MD
Newport Beach, Calif

Arch Ophthalmol. 1995;113(10):1225.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

In the article "Results of the Prospective Evaluation of Radial Keratotomy (PERK) Study 10 Years After Surgery," by Waring and the PERK Study Group,¹ it was reported that "Physicians noted the presence of at least a trace of lens opacity in 144 eyes (22%), 30 of which were peripheral opacities." This incidence of cataracts seems high for this relatively young patient population with a mean age of 44 years at the time of the 10-year examination.

Previous epidemiologic studies of younger patients who have not had radial keratotomy surgery have shown lower cataract prevalence rates. A range of 2.1% to 8.5% of patients aged 45 to 64 years in one study² and 6% of patients aged 40 to 49 years in the Chesapeake Bay watermen study³ showed evidence of cataract formation (defined as lens opacity with a visual acuity of 20/30 or worse). The rate was slightly . . . [Full Text PDF of this Article]

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