Subjective Evaluation Of The Patient-Reported Outcomes And Contrast Sensitivity Following Laser In Situ Keratomileusis (Lasik) Performed Using A Novel Aspheric Ablation Profile For The Correction Of Myopia And Myopic Astigmatism.

To evaluate patient-reported outcomes and contrast sensitivity in patients undergoing laser in situ keratomileusis (LASIK) for the correction of myopia and myopic astigmatism using the latest laser ablation algorithm (Proscan 1.28 SW) of Technolas Teneo 317 Model 2 excimer laser. 

Ten clinical sites in the US. 

In this prospective, multicenter study, 168 subjects aged ≥ 22 years underwent LASIK performed with the Technolas Teneo 317 Model 2 (version 1.28 US SW) excimer laser for the correction of myopia and myopic astigmatism. No nomogram adjustments were made, and the patient’s manifest refraction was entered into the laser for treatment. The Patient-Reported Outcomes were assessed using the Patient-Reported Outcomes with LASIK (PROWL) questionnaire. The PROWL questionnaire was self-administered to all subjects preoperatively as well as at 9 months postoperatively, and the responses were compared. Other outcome measures were the assessment of contrast sensitivity under mesopic conditions with and without glare. 

Compared to preop, a higher proportion of patients, at 9 months, reported “no difficulty” driving at night (83% vs 99%, p<0.001) or in difficult conditions (87% vs 99%, p<0.001) and performing outdoor activities (81% vs 100%, p<0.001). Similarly, a pre versus postop comparison showed that a higher proportion of patients reported no starbursts/haloes (76% vs 86%, p=0.040), glare (76% vs 80%, p=0.451), distorted vision (92% vs 95%, p=0.302), and blurry vision (82% vs 91%, p=0.013). Postoperatively, 98% of patients were satisfied with their vision. The mean postoperative contrast sensitivity was similar to/better than the preoperative levels, with significant improvement at 6 and 12 cpds (without glare), and at 3, 6, and 12 cpds (with glare). 

LASIK with Technolas Teneo 317 Model 2 excimer laser for the correction of myopia and myopic astigmatism resulted in high satisfaction rates. The incidence of dysphotopsia reduced postoperatively. Contrast sensitivity following LASIK either remained similar or improved postoperatively.