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近年来采用角膜前放射状切开治疗近视眼在国内外已有不少学者开展了这一手术,本文通过兔眼的实验观察,了解角膜放射状切开后不同时期角膜组织的改变,正确评价这一手术的前途。材料和方法选用白色家兔20只,每只体重约2～3公斤,检查无眼病及眼部畸形后确定为实验对象。术前硫喷妥钠0.08克静脉麻醉。角膜切开刀以掰成锐角的保险刀片代替,用止血钳夹持刀片,使尖端外露约0.3毫米。均于左眼角膜前表面施行放射状切开8条,切口避开瞳孔区(直径4毫米),周边可达角膜缘。手术时以固定镊夹持9点处球结膜,用已置好长度的刀片呈放射状切开角膜全层的三分之二。为避免因切开条数增加使眼压下
In recent years, the use of corneal radial incision for the treatment of myopia at home and abroad, many scholars have carried out this operation, this article through the experimental observation of rabbit eyes, corneal radial corneal tissue at different times to understand changes in the correct assessment of this The future of surgery. MATERIALS AND METHODS: Twenty white rabbits were selected, each weighing about 2 ~ 3 kg. After examination, no eye diseases and ocular deformities were identified as experimental subjects. Preoperative thiopental 0.08 g intravenous anesthesia. Corneal incision knife to break into an acute angle instead of the insurance blade, holding the blade with a hemostat force the tip exposed about 0.3 mm. Are performed in the left corneal anterior surface of the radial incision 8, incision to avoid the pupil area (4 mm in diameter), peripheral up to the limbus. Surgical tweezers to hold the ball at 9 o’clock conjunctiva, with the length of the blade has been placed radially cut two-thirds of the cornea. In order to avoid the number of cut due to increase the pressure of the eye