Abstract
Objective To investigate the safety, predictability and effectiveness of laser in situ keratomileusis (LASIK) with laser flap created by femtosecond laser. Methods 1016 eyes of 512 patients with refractive error received LASIK with vlSX Star S4 excimer laser system and Intralase femtosecond laser. The period of follow-up ranged from 6 to 12 months. The transparency of cornea and the refractive changes after surgery were examined by slit-lamp microscope and corneal topographic device. Results At 6 months after operation,the mean residual spheroequivalent of refraction was ( - 0.25±0.75 ) D ( range - 1.00D to +1.25D). 923 eyes (90.85%) had uncorrected visual acuity of 1.0 or better, 1002 eyes (98.62%) had uncorrected visual acuity equal to or better than preoperative best corrected visual acuity. The intraoperative complication was subconjunctival hemorrhage (57 eyes, 5.61% ) , and no other complications were found.Conclusion LASIK with corneal flap created by femtosecond laser is a safe and effective procedure for the correction of refractive error. It has good predictability. Key words: femtosecond laser; corneal flap; LASIK
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