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《实用眼科杂志》1992年11期所刊出的《角膜放射状切开术治疗近视10480眼疗效观察》一文,我们读后有以下异议与作者商榷。一、原文在无微调金钢钻刀并以“角膜后弹性层为解剖学上的界限”的条件下,即在近视眼健康角膜上施行前角膜放射切开术(RK),很不可取。近视眼只是屈光异常,不同于其他眼病,必须科学的指导并具备一定的条件下才能谨慎开展。角膜是一厚度不均匀的组织,中央至周边厚度逐渐递增,且个体差异很大,根据我们所测1200只近视眼的角膜旁中央厚度在0.5—0.7mm 范围,故术前超声测厚仪作多点精密测定角膜厚度是必不可少的,不存在“切开常用0.6mm,加深用0.65—0.7mm”的规律可循。其次角膜切口瘢痕抗压力强度低,任何突发性眼球壁张力增高的因素均有导致瘢痕裂开的危险。此外,切口
“Practical Journal of Ophthalmology,” 1992 the 11 issue of “corneal radiofrequency surgery for the treatment of 10480 eyes of the efficacy of” article, we read the following objections with the author to discuss. First, the original text in the fine-tuning diamond drill and “post-corneal elastic layer for anatomical boundaries” under the conditions that the cornea in myopia on the implementation of corneal anterior corneal radiofrequency surgery (RK), is not desirable. Myopia is only refractive abnormalities, unlike other eye diseases, must be scientific guidance and have the necessary conditions to be cautious. The cornea is a non-uniform thickness of tissue, the central to the surrounding thickness gradually increased, and the individual differences are great, according to our measured 1200 myopia central corneal thickness in the range of 0.5-0.7mm, so preoperative ultrasound thickness gauge for Multi-point determination of corneal thickness is essential, there is no “cut common 0.6mm, deepen with 0.65-0.7mm” rule to follow. Second, corneal incision scar low compressive strength, any sudden increase in ocular wall tension factors have led to the risk of scar dehiscence. In addition, incision