Abstract
Objective To observe the safety and efficacy of sub-Bowman's keratomileusis (SBK) using mechanical microkeratome for correcting myopia. Methods Flaps for the SBK treatments were created using Moria microkeratome in 64 eyes of 62 patients. The follow-up time was 3 months. The refractive and visual results, and complication were observed. The flap thickness was assessed with anterior segment optical coherence tomography and data was analysed with statistical method. Results The mean central corneal flap thickness was(101.87±4.12)μm at 3 month after aurgery.There was no statistically significant difference between 1 mm and 2 mm contralateral point (P>0.05). There was no other complications except intraoperative corneal limbal bleeding in 4 eyes and corneal flap microfolds in 1 eye.Postoperatively, all eyes reached preoperative best corrected distance visual acuity.The mean spherical equivalent was (-0.12±0.45)D(range from -0.50D to + 1.00D). Conclusion Sub-Bowman's keratomileusis with mechanical microkeratome is safe, predictable, and stable. Key words: Refractive surgery; Sub-Bowman's keratomileusis; Efficacy
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