Clinical applications of the Shack-Hartmann aberrometer
Clinical applications of the Shack-Hartmann aberrometer
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DOI：
10.1097/00006324-199912000-00016
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发表时间：
1999-12-01
影响因子：
1.4
通讯作者：
Hong, X
中科院分区：
文献类型：
--
作者：
Thibos, LN;Hong, X
针对与光学异常眼睛相关的四类临床状况，评价了Shack-Hartmann技术测量眼睛光学像差的有效性。这些类别（具体示例）包括：泪膜异常（干眼症）、角膜疾病（圆锥角膜）、角膜屈光手术[激光辅助原位角膜磨镶术（LASIK）]和晶状体性白内障。我们表明，在每一种情况下，它是可能的，以获得至少部分地形图的患者的眼睛的屈光像差，但严重损失的数据完整性可能会发生。我们进一步表明，Shack-Hartmann像差仪在非常精细的空间尺度（< 0.4 mm）上提供了关于眼睛缺陷的额外信息，这些缺陷散射光并进一步降低视网膜图像的质量。总之，光学像差的变化的空间图和眼睛的入射光瞳上的散射表示异常眼睛的光学缺陷的改进的描述。
The efficacy of the Shack-Hartmann technique for measuring the optical aberrations of the eye was evaluated for four classes of clinical conditions associated with optically abnormal eyes. These categories (with specific examples) are: anomalies of the tear film (dry eye), corneal disease (keratoconus), corneal refractive surgery [laser-assisted in situ keratomileusis (LASIK)], and lenticular cataract. We show that in each of these cases, it is possible to obtain at least a partial topographic map of the refractive aberrations of the patient's eyes, but severe losses of data integrity can occur. We further show that the Shack-Hartmann aberrometer provides additional information about the eye's imperfections on a very fine spatial scale (< 0.4 mm) which scatter light and further degrade the quality of the retinal image. Taken together, spatial maps of the variation of optical aberrations and scatter across the eye's entrance pupil represents an improved description of the optical imperfections of the abnormal eye.