각막 고위수차가 안구 내 스트레이라이트에 미치는 영향

Effect of Corneal Higher-Order Aberrations on the Intraocular Straylight

Purpose: To investigate the relation between corneal higher-order aberrations and intraocular straylight. Methods: Fifty eyes with an ZCB00 (Abbott Medical Optics, Santa Ana, CA, USA) were prospectively evaluated. Ocular higher-order aberrations were measured for a 4-mm pupil using Pentacam？？ (Oculus Inc., Dutenhofen, Germany). Best corrected visual acuity (BCVA) and Straylight were measured at preoperation, postoperative 1 month, and 2 month using C-Quant straylight meter (Oculus GmbH, Wetzlar, Germany). Results: BCVA and Straylight were significantly improved after operation (p < 0.001). There were no statistically significant differences in corneal higher-order aberration root mean square, including spherical, coma, or trefoil aberration, at two months postoperative. Spearman correlation analysis revealed that total higher-order aberration (R = 0.315, p = 0.026) and spherical aberration (R = 0.297, p = 0.036) were significantly associated with straylight, but coma aberration (R = 0.239, p = 0.095), trefoil aberration (R = -0.036, p = 0.804) were not. Conclusions: Corneal higher-order aberration of the eye and straylight that influeces visual quality have a positive correlation. And measurement of straylight using C-Quant may reflect the corneal higher-order aberrations.