Draeger J, Böhnke M, Grabner G, Slezak H, Lang K
Universitäts-Augenklinik, Hamburg.
Klin Monbl Augenheilkd. 1988 May;192(5):458-61. doi: 10.1055/s-2008-1050151.
In an experimental study the surface characteristics of two fundamentally different lamellar corneal dissection techniques were compared. Using porcine corneae, 9.5 mm lenticles were cut from the whole globe and evaluated by SEM. With an oscillating blade, a smooth cut surface was found in most cases with occasional irregularities. The rotating lamellar keratome had uniform cutting characteristics with a somewhat wavy surface structure, which has not so far been observed in human tissue. By increasing the speed of rotation and decreasing the rate of advance of the blade the surface structure was improved. The two cutting principles and their possible clinical applications are discussed.
在一项实验研究中，对两种根本不同的板层角膜切开技术的表面特征进行了比较。使用猪角膜，从整个眼球上切下9.5毫米的透镜体，并通过扫描电子显微镜进行评估。使用振荡刀片时，在大多数情况下发现切割表面光滑，偶尔有不规则之处。旋转板层角膜刀具有均匀的切割特性，表面结构有点呈波浪状，这在人体组织中迄今尚未观察到。通过提高旋转速度和降低刀片前进速度，表面结构得到了改善。讨论了这两种切割原理及其可能的临床应用。
