OPD-Scan Ⅱ检测正常眼和圆锥角膜眼的角膜像差（英文）

Corneal aberrations in normal and keratoconic eyes using an OPD-Scan Ⅱ

目的:评估正常眼和圆锥角膜眼的角膜高阶像差(HOAs)。方法:使用OPD-Scan Ⅱ波前像差分析仪,评估80例80眼圆锥角膜(KC)患者和91例正常眼角膜表面参数。对两组受试者的Zernike系数第三阶到第六阶,原始彗差均方根(RMS),彗差和总高阶像差进行比较分析。结果:圆锥角膜眼和正常眼间测得的像差具有显著差异(P<0.001),相较于正常眼,圆锥角膜患者像差参数显著较高(P<0.001)。结论:通过OPD-Scan Ⅱ测量角膜波前像差在圆锥角膜眼中显著高于正常眼。

AIM:To evaluate higher order aberrations(HOAs)of the corneal surface in normal and keratoconic eyes.METHODS:Using an OPD-ScanⅡwavefront analyzer,aberrometric parameters of the corneal surface in one eye of 80 patients with keratoconus(KC)and 91 participants with normal eyes were evaluated.The Zernike coefficients from third-to sixth-order as well as root mean square(RMS)of primary coma,coma-like aberrations,and total HOA were calculated and compared between both groups.RESULTS:Statistically significant differences were found in all aberrometric parameters between the measurements of the KC and normal participants(P<0.001).All of the aberrometric parameters were significantly higher in the KC patients compared to the normal group(P<0.001).CONCLUSION:Corneal wavefront measurements by means of OPD-ScanⅡwere significantly higher in keratoconic corneas than normal corneas.