Comparison of corneal and total ocular aberrations before and after myopic LASIK.

Purpose: To assess the compensation of total ocular and corneal wavefront aberrations after conventional myopic LASIK.

Methods: This study comprised 57 eyes of 57 patients. Total and corneal aberrations were measured preoperatively and 3 months postoperatively using the OPD-Scan (NIDEK Co Ltd) aberrometer.

Corneal hysteresis, resistance factor, topography, and pachymetry after corneal lamellar flap.

Purpose: To measure prospectively the early changes in corneal hysteresis, topography, and pachymetry after the creation of a stromal flap cut without laser photoablation.

Methods: A 37-year-old man was referred for a bioptic procedure to correct for compound myopic astigmatism in the left eye. A 159-microm-thick 8x8.