PURPOSE: To evaluate visual, refractive, and contrast sensitivity outcomes following laser-assisted in situ keratomileusis (LASIK) using an advanced algorithm.

METHODS: This prospective study included 333 eyes of 168 patients who underwent LASIK using Proscan 1.28 SW ablation algorithm of Technolas Teneo 317 Model 2 (Bausch & Lomb). Preoperatively, all eyes had corrected distance visual acuity (CDVA) of 20/25 or better and manifest refraction spherical equivalent (MRSE) between -1.0 and -11.50 D with or without astigmatism (0.0 to -3.0 D). No nomogram adjustments were made.

RESULTS: At postoperative 9 months, UDVA and CDVA of 20/25 or better were achieved in 97.8% and 100% of eyes, respectively. Gain ≥1 line or no change in CDVA was observed in 98.7% of eyes. Mean MRSE improved from -5.67±2.52 D to -0.04±0.32 D postoperatively; 92.7% and 99.1% of eyes achieved MRSE within ±0.50 D and ±1.00 D, respectively. Residual cylinder of ≤0.50 and ≤1.00 D was achieved in 93% and 99.4% of eyes, respectively. Postoperative mesopic contrast sensitivity (with and without glare) showed significant improvement at 6 and 12 cpd.

CONCLUSION: LASIK performed using Teneo 317 laser's algorithm yielded excellent visual and refractive outcomes that remained stable through postoperative 9 months. Mesopic contrast sensitivity improved significantly.