Facts relating to the corneal flap creation with The Moria OUP-SBK microkeratome

Objective To observe the flap characteristics and the facts correlating to the thickness of the cornea flap created with One Use-Plus sub-bowman's keratomileusis.Methods Two hundred and twenty-six consecutive eyes of 113 previously non-operated patients were treated with Moria OUP-SBK microkeratome.An intended flap thickness was 100 μm.One week after surgery,the flap thickness was measured by optical coherence tomography (OCT).Single variable correlations of the flap thickness and preoperative MRSE,Corneal diameter,corneal thickness,corneal keratometric value K were determined.Results The mean flap thickness was (106.37± 3.72) μm,Mean flap thickness was (107.17± 4.28) μm in right eyes and (105.58± 2.89) μm in left eyes.The difference between right and left eyes was statistically significant (t =2.429,P ＜0.05).Corneal flap thickness was positively correlated with preoperative corneal keratometric value K (RK=0.302,PK=0.002＜0.01),but was not dependent on preoperative patient MRSE,Corneal diameter,corneal thickness.Conclusions Moria OUP-SBK microkeratome created LASIK flaps have good predictability,even thickness and are positively correlated with preoperative corneal keratometric value K. Key words: Corneal flap;  The sub-bowman's keratomileusis;  Related factors;  Keratomileusis