V 741Laser in situ keratomileusis (LASIK) with superior hinge and scanning-spot excimer laser ablation to correct hyperopia and hyperopic astigmatism
T. Kohnen, G. W. K. Steinkamp and the Frankfurt study group for refractive surgery
The purpose of this study was to evaluate LASIK for hyperopia and hyperopic astigmatism.
Patients and methods: Thirty-seven consecutive LASIK operations (60 patients with an age between 21 to 60 years) were evaluated. The microkeratome Hansatome with a superior hinge (flap diameter 9.5 mm) and the scanning-spot excimer laser Keracor 217 were used. The mean preoperative spherical equivalent was +3.19 D (-0.25 to +5.88 D), the mean sphere +4.27 D, the mean astigmatism -2.16 D. Ophthalmological examinations were performed preoperatively, after 1 and 7 days and after 1 and 4 months. Safety, predictability, efficacy and stability of the refractive results were evaluated using the Datagraph software program (version 1.11).
Results: In 9% of the cases 2 lines of best-corrected visual acuity (BCVA) were lost, in 23% 1 line, in 0% 2 lines of BCVA were gained. More than 90% of the treated eyes were postoperatively in the range of ± 1.0 D. The uncorrected visual acuity 1 months postoperatively were in 77% of the eyes = 0.5 (20/40). A good stability of the refractive results were found between 1 and 4 months.
Conclusions: LASIK with large ablation diamter using the combination of the Hansatome microkeratome and the excimer laser Keracor 217 is effective for the correction of hyperopia and and hyperopic astigmatism.
Universitäts-Augenklinik, Theodor-Stern-Kai 7, D-60590 Frankfurt