Colliac J P, Shammas H J, Bart D J
Institute Arthur Vernes, Paris, France.
Am J Ophthalmol. 1994 Mar 15;117(3):369-80. doi: 10.1016/s0002-9394(14)73148-4.
Photorefractive keratectomy corrects myopia with or without astigmatism by decreasing the refractive power of the central cornea. The Colliac matrix formula determines the anterior corneal radius of curvature expected to achieve emmetropia. We used the formula as an algorithm for the computer-controlled delivery of the laser beam. The formula was evaluated by using theoretical and clinical cases. We examined the relationship between the correction induced by photorefractive keratectomy, the diameter of ablation zone, and the thickness of the ablated corneal lenticule on the optical axis. Comparison between attempted and achieved keratometric readings showed the accuracy of the formula to be in the order of +/- 0.75 diopter.
准分子激光原位角膜磨镶术通过降低中央角膜的屈光力来矫正近视，无论是否伴有散光。科利亚克矩阵公式可确定预期达到正视所需的角膜前表面曲率半径。我们将该公式用作计算机控制激光束传输的算法。通过理论和临床病例对该公式进行了评估。我们研究了准分子激光原位角膜磨镶术所诱导的矫正、消融区直径以及光轴上消融角膜透镜厚度之间的关系。尝试的角膜曲率计读数与实际获得的读数之间的比较表明，该公式的准确性约为±0.75屈光度。
