Corneal wavefront aberrations and subjective quality of vision after small incision lenticule extraction

Siedlecki, Jakob; Schmelter, Valerie; Schworm, Benedikt; Mayer, Wolfgang J.; Priglinger, Siegfried G.; Dirisamer, Martin und Luft, Nikolaus (2020): Corneal wavefront aberrations and subjective quality of vision after small incision lenticule extraction. In: Acta Ophthalmologica, Bd. 98, Nr. 7, E907-E913

Abstract

Purpose: To analyse in depth the associations between objectively measured corneal higher-order aberrations (HOAs) and subjectively perceived visual quality after small incision lenticule extraction (SMILE) as quantified with the standardized and clinically validated quality of vision (QOV) questionnaire. Methods This cross-sectional study included patients after bilateral simultaneous SMILE for the treatment of myopia and/or myopic astigmatism with plano target refraction. Scheimpflug imaging (Pentacam HR;Oculus Optikgerate GmbH, Wetzlar, Germany) was used to objectively quantify corneal HOAs. The standardized and validated QOV questionnaire was employed to gauge patients' subjectively perceived visual quality regarding frequency, severity and bothering effect of visual disturbances. Results: A total of 394 eyes of 197 patients with a mean age of 32.4 +/- 7.7 years and a mean postoperative follow-up of 24.3 +/- 14.1 months were included. SMILE induced a statistically significant (p < 0.001) increase in spherical aberration (0.074 +/- 0.131 mu m), coma (0.142 +/- 0.179 mu m), trefoil (0.018 +/- 0.067 mu m) as well as in total HOAs (0.191 +/- 0.176 mu m). Surgically induced and postoperative levels of HOA showed no correlation with the three QOV scores representative of overall visual symptom frequency, severity and bothering effect (all R-2 values <= 0.016). In addition, the associations between specific visual symptoms (e.g. starburst) and singular HOA terms (e.g. haloes) were very weak (all Rho values <= 0.164). Conclusions: Small incision lenticule extraction induced significant amounts of corneal HOAs that, however, showed no clear relationships to patient-reported QOV or specific long-term visual symptoms.

• Dokumententyp: Zeitschriftenartikel
• Fakultät: Medizin
• Themengebiete: 600 Technik, Medizin, angewandte Wissenschaften > 610 Medizin und Gesundheit
• ISSN: 1755-375X
• Sprache: Englisch