[Laser refractive surgery for moderate or high myopic astigmatism--1 year outcome].

PURPOSE: To evaluate the medium term postoperative clinical outcomes in eyes with medium and high myopic astigmatism that had excimer laser refractive surgery (LASIK and PRK).

SETTING

Oftaprof Clinic, Iasi.

MATERIAL AND

METHODS

This prospective interventional study comprised 74 eyes with myopic astigmatism 2D who had excimer laser refractive surgery. Aspheric treatments with a wavefront-optimized ablation profile were performed using the Wavelight Allegretto Eye-Q excimer laser system. The follow-up period was 12 months.

RESULTS

Uncorrected distance visual acuity(UD VA) improved from 0,08 +/- 0,09 (SD) to 0,74 +/- 0,16 (SD) 3 months postoperatively and maintained at 0,75 +/- 0,16 (SD) 12 months postoperatively; all eyes achieved UDVA 0,5 or better and 71% of them achieved UDVA 1 or better 12 months postoperatively. REFRACTIVE

RESULTS

The mean cylinder and the mean spheric equivalent have significantly decreased after laser refractive surgery (p=0,001); 98% of eyes were within +/- 1D of the attempted astigmatic correction, and 76% were within +/- 0,5D. Only one eye lost one line of corrected distance visual acuity (CDVA), 14 eyes gained one line of CDVA and 6 eyes gained 2 or more lines of CDVA. Intraoperative complications were: limbal vessels haemorrhage during flap creation (6 eyes), flap slightly descentered inferiorly (2 eyes). Postoperative complications were: diffuse lamelar keratitis (3 eyes after LASIK) and moderate epithelial haze (4 eyes after PRK).

CONCLUSIONS

PRK and LASIK have safety, efficacy and predictibility of correcting moderate to high myopic astigmatism using Wavelight Allegretto Eye-Q excimer laser system.