Objective To study the relationship between wavefront aberration and the optic tilt after ICL implantation.
Methods It was a retrospective case series, included 10 patients (20 eyes) with ICL implantation for the correction of high myopia. The lens length was calculated according to the corneal horizontal diameter measured by Orbscan II. Patients were followed preoperatively and postoperatively at 1 day, 1 week, 1 month and every month afterwards. The accurate position of the lens and their relationship with adjacent structures were observed by ultrasound biomicroscopy (UBM). ICL tilt and wavefront aberration were meassured. Observations of preoperative following and the last postoperative following were analyzed by SPSS 16.0 software package.
Results The average tilt angle of ICL was 1.33±1.19 degrees, ranged from 0.1 to 5 degrees. The root mean square(RMS)of total wavefront aberration decreased significantly (P<0.01).The RMS of higher order aberration(HOA) and third-order 3-foil C9 decreased slightly(P>0.05). Third-order coma-like aberration C8 and 3-foil aberration C6 increased slightly (P>0.05).
Conclusions There was no relationship between wavefront aberration and the optic tilt after ICL implantation. |