论文部分内容阅读
Purpose To evaluate the changes in oc ular aberrations in-duced by corneal flap creation.Design Prospective inter-ventional nonrandomized clinical t rial.Methods This study included 15patients who were schedu led for laser in situ keratomileusis.A nasal hinge flap w as created,using the Nidek MK -2000microkeratome and then replaced without performing laser ablation.The ocul ar aberrations were measured before and after flap creation using the Nidek Optical Path Difference Scanning System ARK -10000.Results The root mean square wavefro nt errors of the high-er -order optical aberrations(third -,fourth -,fifth -,and sixth -order aberrations)were not significantly altered at 1week postsurgery compared with t he preoperative val-ues(P >0.35).Conclusions Creating a corneal fla p with the Nidek MK -2000microkeratome did not induce chan-ges in higher-order optical aberrations as measured with the Nidek Optical Path Difference Scanning System ARK -10000during the early postoperativ e period.
Purpose To evaluate the changes in oc ular aberrations in-duced by corneal flap creation. Design Prospective inter -ventional nonrandomized clinical t rial. Methods This study included 15 patients who were schedu led for laser in situ keratomileusis. A nasal hinge flap w as created, using the Nidek MK-2000 microkeratome and then replaced without performing laser ablation. The ocul ar aberrations were measured before and after flap creation using the Nidek Optical Path Difference Scanning System ARK -10000. Results The root mean square wavefro nt errors of the high-er -order optical aberrations (third -, fourth -, fifth -, and sixth -order aberrations) were not significantly altered at 1week postsurgery compared with t he preoperative val-ues (P> 0.35) .Conclusions Creating a corneal fla p with the Nidek MK-2000 microkeratome did not induce chan-ges in higher-order optical aberrations as measured with the Nidek Optical Path Difference Scanning System ARK -10000during the early postoperation period.