Barner S S
Albrecht Von Graefes Arch Klin Exp Ophthalmol. 1977 Feb 23;201(3):213-20. doi: 10.1007/BF02385178.
The aim of all ocular surgery is to preserve or restore optimal visual function. Reduction of excessive postoperative astigmatism after keratoplasty, cataract extraction, or other anterior segment operations has been obtained in clinical surgery by corneal wedge resection. The purpose of this experimental investigation was to quantify and evaluate the results of different microsurgical techniques in crescentic resection of a corneal wedge. Twenty-five rabbits were operated and the induced changes of corneal curvature measured by keratometry. The immediate and long-term results are presented. The effect of wedge resection was a steepening of the meridian perpendicular to the resection and a flattening of the meridian parallel to the resection. The astigmatism induced was less pronounced than the changes obtained in human surgery. There were no postoperative ocular complications and all corneas remained clear. It is suggested that the operation be performed in all cases of severe corneal astigmatism uncorrected by lenses.
所有眼科手术的目的都是为了保留或恢复最佳视觉功能。在临床手术中，通过角膜楔形切除术可减少角膜移植、白内障摘除或其他眼前节手术后过度的术后散光。本实验研究的目的是量化和评估不同显微手术技术在角膜楔形新月形切除术中的效果。对25只兔子进行了手术，并通过角膜曲率计测量诱导的角膜曲率变化。给出了即时和长期结果。楔形切除的效果是使垂直于切除线的子午线变陡，平行于切除线的子午线变平。诱导的散光不如人类手术中获得的变化明显。术后无眼部并发症，所有角膜均保持清晰。建议在所有无法通过镜片矫正的严重角膜散光病例中进行该手术。
