One-year results of excimer laser in situ keratomileusis for hyperopia

Purpose

To evaluate the visual and refractive results of hyperopic LASIK.

Setting

Clínica Baviera Instituto Oftalmológico Europeo, Madrid, Spain

Methods

This retrospective consecutive noncomparative observational study evaluated hyperopic LASIK results over 1 year. Outcomes included uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), cycloplegic refraction, and corneal topography. Surgery was performed using an MEL 80-G excimer laser. Results were analyzed by preoperative spherical equivalent (SE) (Group 1: ≤+3.50 diopters [D]; Group 2: ≥+3.60 D).

Results

The mean UDVA improved from 0.50 ± 0.3 (SD) to 0.90 ± 0.2 in Group 1 and from 0.50 ± 0.3 to 0.80 ± 0.2 in Group 2 and the mean CDVA, from 0.86 ± 0.2 to 0.93 ± 0.1 and from 0.80 ± 0.2 to 0.90 ± 0.2, respectively. The mean cycloplegic SE improved from +2. 5± 0.8 to +0.1 ± 0.5 in Group 1 and from +4.5 ± 0.6 to +0.4 ± 0.6 in Group 2; 70.9% of eyes and 63.3% of eyes, respectively, were within ±0.50 D of emmetropia. Postoperatively, 92.8% of eyes in Group 1 and 87.8% in Group 2 maintained or gained 1 or more lines of CDVA; 1.7% and 4.0%, respectively, lost 2 or more lines. The safety index was 1.1 in both groups and the efficacy index, 1.01 in Group 1 and 0.98 in Group 2. The enhancement rate was 20.0% and 18.4%, respectively.

Conclusion

Excimer laser LASIK was safe and effective for treating hyperopia up to +6.25 D with no further loss of CDVA lines after enhancement.