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August 1998

Evaluating Refractive SurgeryWhat Is the Appropriate Baseline?

Arch Ophthalmol. 1998;116(8):1104-1105. doi:10.1001/archopht.116.8.1104

MARTÍNEZ ET AL1 should be commended for attempting to analyze potential visual complaints associated with photorefractive keratectomy (PRK). Their study is well performed and the article concise and clearly written. The reader, however, (as for all studies) needs to determine whether the study design is appropriate and if the conclusions are clinically relevant. In this article, Martínez et al compare the optical aberration of the anterior corneal surface after PRK with a 5-mm optical zone with 3- and 7-mm pupil sizes to the preoperative cornea. There are many problems with the study design that may limit the clinical applicability.

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