Intraoperative cyclorotation and pupil centroid shift during LASIK and PRK.

Purpose: To determine the degree of cyclorotation and centroid shift in the x and y axis that occurs intraoperatively during LASIK and photorefractive keratectomy (PRK).

Methods: Intraoperative cyclorotation and centroid shift were measured in 63 eyes from 34 patients with a mean age of 34 years (range: 20 to 56 years) undergoing either LASIK or PRK. Preoperatively, an iris image of each eye was obtained with the VISX WaveScan Wavefront System (Abbott Medical Optics Inc) with iris registration.

Case of corneal melting associated with the use of topical nepafenac.

Purpose: To report a case of corneal melting associated with the use of the topical nonsteroidal anti-inflammatory agent Nepafenac.

Methods: Case report and literature review.

Results: A 62-year-old woman with a complicated ocular history developed corneal melting associated with the use of Nepafenac.