Title: A comparison of visual function after Epi-LASIK and LASIK procedures on the anterior cornea
Abstract: Objective To compare basic image quality between Epi-LASIK patients and LASIK patients after surgery. Methods To retrospectively compare vision, residual refractive error, contrast sensitivity, and tear break-up time (BUT) 3 months after surgery. Four hundred eyes with equivalent preoperative corneal thickness and refractive error were recruited to undergo either Epi-LASIK (group A, 198 eyes) or LASIK(group B, 202 eyes). Results At 3 months postoperatively, the vision in group A was:93.94%≥0.6,89.90%≥0.8,62.12%≥1.0 and in group B was:95.54%≥0.6,94.06%≥0.8,67.82%≥1.0. The percent exceeding or reaching preoperative BCVA in group A was 45.96%, or 42.93%, and in group B was 35.15%, or 53.96%. Residual refractive error for group A was (-0.12±0.51)D and for group B was (-0.06±0.37)D, P0.05. Contrast sensitivity for group B was more obvious than for group A (P0.05). BUT for group A was (8.28±7.68)s and for group B was (7.38± 4.30)s, P=0.043. Conclusion Epi-LASIK is easier to master and image quality after surgery is better than that for LASIK. This is a promising operation. Long-term stability and the curative effect need to be followed up and observed.
Publication Year: 2007
Publication Date: 2007-01-01
Language: en
Type: article
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