Karim Kh A, Mamedov N G, Kaplina A V, Kolesnikov D O
Vestn Oftalmol. 1992 May-Jun;108(3):10-4.
This work was aimed at analysis of all the aspects, pathomorphologic included, of short-pulsed YAG laser exposure of the lens. Experiments were carried out with 79 rabbit eyes. After laser exposure the eyes were enucleated in 1-24 h and in 7-10 days. Thirty-one eyes were subjected to YAG laser ++capsule puncture. Fragmentation of intracapsular structures was carried out in 23 eyes. Combined operations were performed on 25 eyes. Every series comprised two groups, differing by the energy of laser exposure: 3-5 mJ. Histologic analysis has lead the authors to the following conclusions. The pattern and severity of pathomorphologic changes were directly related to the energy and time of laser exposure and site of the focal plane of irradiation. The major destructive shifts after YAG laser fragmentation of the cortical layer and capsulotomy are focussed at the site of exposure and involve the adjacent sections of the lens. Laser exposure of 3-5 mJ may be used to open the anterior capsule of the lens and to facilitate the cataract mass discharge in extracapsular cataract extraction. Use of combined method helps enhance induration and fragmentation of the cortical layers of the lens, rules out surgical discission of the anterior capsule of the lens, and facilitates removal of the nucleus and wash out of the lens mass.
这项工作旨在分析短脉冲YAG激光照射晶状体的所有方面，包括病理形态学方面。用79只兔眼进行了实验。激光照射后，在1 - 24小时和7 - 10天摘除眼球。31只眼进行了YAG激光 + + 囊膜穿刺。23只眼进行了囊内结构破碎。25只眼进行了联合手术。每个系列包括两组，根据激光照射能量不同而有所区别：3 - 5毫焦。组织学分析使作者得出以下结论。病理形态学变化的模式和严重程度与激光照射的能量、时间以及照射焦平面的位置直接相关。YAG激光破碎皮质层和囊切开术后的主要破坏性变化集中在暴露部位，并累及晶状体的相邻部分。3 - 5毫焦的激光照射可用于打开晶状体前囊，并有助于在囊外白内障摘除术中排出白内障物质。联合方法的使用有助于增强晶状体皮质层的硬化和破碎，避免晶状体前囊的手术切开，并便于摘除晶状体核和冲洗出晶状体物质。
