Basic research for wavefront-guided refractive surgery : The evaluation of effects of aberrations and scatterings on the optical function of the eye

暂时性角膜扩张是导致术后并发症的原因之一，其机制与眼内压显著升高有关。波前像差分析表明，核性白内障晶状体的三叶像差和球差的共同增加是导致三重构型的原因，组织工程化上皮细胞片层移植可有效预防准分子激光角膜切削术后角膜haze的发生，Hartmann-Shack像差仪测量的泪膜破裂时间可作为一种实用的泪膜破裂时间测量方法。

As one of the cause of post-operative complications, the mechanism of transient keratectasia in association with a marked intraocular pressure (IOP) elevation was shown.Monocular triplopia was reported by middle-aged patients with mild nuclear cataract and high myopia. Wavefront analyses suggested that the triple configuration was caused by the combined increase of the trefoil and spherical aberration in lenses with nuclear cataract.The transplantation of tissue-engineered epithelial cell sheets can successfully prevent the development of corneal haze after excimer laser keratectomy.The tear break-up time measured by Hartmann-Shack aberrometer may be used as a practical measure of tear break-up.