Chinese Optics Letters, 2005, 3 (11): 11655, Published Online: Jun. 6, 2006
Research of cornea section's shape ablated by 193-nm ArF laser spots
140.2180 excimer lasers 170.1020 ablation of tissue 200.0200 optical computing 240.6670 surface photochemistry
Abstract
The ablation theory of cornea and biology effect by 193-nm ArF excimer laser are introduced. The ablation tracks model is put forward to make laser spots scan around cornea by many steps and many areas to change cornea curvature. The corneal average ablation curve is calculated by software so as to explain the feasibility of the ablation tracks model. By analyzing the actual ablation shapes of many arbitrary cornea sections, the optimal ablation method for deciding the random position of every laser spot in every ablation track is obtained. Experiments combining the ablation model with the device testify the energy stability of laser spots and the accuracy of rectifying anisometropia.
Zhiqiang Zhu, Yinshan Yu, Guoqing Deng. Research of cornea section's shape ablated by 193-nm ArF laser spots[J]. Chinese Optics Letters, 2005, 3(11): 11655.