基于傅里叶的哈特曼-夏克像差仪和基于泽尼克的切恩宁像差仪在准分子原位角膜磨镶术前后所测量的眼像差比较。
Comparison of ocular aberrations measured by a Fourier-based Hartmann-Shack and Zernike-based Tscherning aberrometer before and after laser in situ keratomileusis.
作者信息
Sáles Christopher S, Manche Edward E
机构信息
From the Byers Eye Institute, Stanford University School of Medicine, Palo Alto, California, USA.
From the Byers Eye Institute, Stanford University School of Medicine, Palo Alto, California, USA.
出版信息
J Cataract Refract Surg. 2015 Sep;41(9):1820-5. doi: 10.1016/j.jcrs.2015.09.014.
PURPOSE
To assess agreement between a Hartmann-Shack aberrometer (Wavescan) and a Tscherning aberrometer (Wavelight Allegro Analyzer) and their respective agreement with manifest refraction before and after laser in situ keratomileusis (LASIK).
SETTING
Stanford Eye Laser Center, California, USA.
DESIGN
Prospective comparative observational study.
METHODS
Multiple readings were obtained both aberrometers preoperatively and 12 months after wavefront-guided LASIK. Sphere, cylinder, spherical equivalent (SE), defocus Z(2,0), astigmatism Z(2,2), spherical aberration Z(4,0), coma Z(3,1), trefoil Z(3,3), and total higher-order aberrations (HOAs) were compared using intraclass correlation coefficients (ICCs) (perfect agreement = 1; disagreement = 0).
RESULTS
In the 100 study eyes, preoperative agreement was good to excellent between the aberrometers for the parameters of defocus, astigmatism, and spherical aberration (ICC: 0.8, 0.9, and 0.7, respectively) but was poor for coma, trefoil, and total HOAs (ICC: 0.6, -0.2, and 0.4, respectively). At 12 months, ICCs worsened for all parameters (ICC: defocus = 0.6; astigmatism = 0.2; spherical aberration = 0.6; coma = 0.4; trefoil = -0.3; total HOAs = 0.4). Preoperative agreement of sphere, cylinder, and SE was good to excellent between the manifest refraction and both aberrometers (ICC Hartmann-Shack: 0.98, 0.95, and 0.97, respectively; ICC Tscherning: 0.97, 0.92, and 0.98, respectively). However, agreement was poor to fair between the manifest refraction and both aberrometers at 12 months (ICC Hartmann-Shack: 0.4, 0.1, and 0.4, respectively; ICC Tscherning: 0.03, 0.02, and 0.2, respectively).
CONCLUSIONS
Although some HOAs measured with both aberrometers agreed preoperatively, such agreement might not persist after LASIK. Spherocylinder measurements with both aberrometers seemed to agree closely with the manifest refraction before LASIK, but not at 12 months.
FINANCIAL DISCLOSURE
Dr. Manche has equity in Calhoun Vision, Inc., Krypton Vision, Seros Medical, LLC, and Veralas and is a consultant to Best Doctors, Gerson Lehrman Group.
目的
评估哈特曼-夏克像差仪（Wavescan）与切恩宁像差仪（威视 Allegro 分析仪）之间的一致性，以及它们在准分子原位角膜磨镶术（LASIK）前后与显然验光的各自一致性。
地点
美国加利福尼亚州斯坦福眼科激光中心。
设计
前瞻性比较观察性研究。
方法
在术前以及波前引导的 LASIK 术后 12 个月，使用两台像差仪进行多次测量。比较球镜、柱镜、等效球镜（SE）、离焦 Z(2,0)、散光 Z(2,2)、球差 Z(4,0)、彗差 Z(3,1)、三叶草像差 Z(3,3)和总高阶像差（HOAs），采用组内相关系数（ICC）（完全一致 = 1；不一致 = 0）。
结果
在 100 只研究眼中，术前两台像差仪在离焦、散光和球差参数方面的一致性良好至优秀（ICC 分别为 0.8、0.9 和 0.7），但在彗差、三叶草像差和总 HOAs 方面一致性较差（ICC 分别为 0.6、 -0.2 和 0.4）。在术后 12 个月，所有参数的 ICC 均变差（ICC：离焦 = 0.6；散光 = 0.2；球差 = 0.6；彗差 = 0.4；三叶草像差 = -0.3；总 HOAs = 0.4）。术前球镜、柱镜和 SE 在显然验光与两台像差仪之间的一致性良好至优秀（哈特曼-夏克 ICC 分别为 0.98、0.95 和 0.97；切恩宁 ICC 分别为 0.97、0.92 和 0.98）。然而，术后 12 个月显然验光与两台像差仪之间的一致性较差至一般（哈特曼-夏克 ICC 分别为 0.4、0.1 和 0.4；切恩宁 ICC 分别为 0.03、0.02 和 0.2）。
结论
虽然两台像差仪测量的一些高阶像差术前一致，但这种一致性在 LASIK 术后可能无法持续。两台像差仪的球柱镜测量在 LASIK 术前似乎与显然验光密切一致，但术后 12 个月并非如此。
财务披露
曼奇医生在卡尔霍恩视觉公司、氪视觉公司、血清医疗有限责任公司和 Veralas 拥有股权，并且是最佳医生公司、格erson Lehrman 集团的顾问。
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