【摘要】 目的　研究不同内径的前房维持器 ( anterior chamber maintainer,ACM)在兔眼实验性连续环形撕前囊 ( continuous curvilinear anterior capsulorhexis,CCC)中所创前房深度 ( anterior cham ber depth,ACD)及眼压 ( intraocular pressure,IOP)的变化 ,探讨ACM内径大小及灌注瓶高度 ( bottle height,BH )对 ACD及 IOP的影响。方法　将 2 0只兔 40眼随机分为 4组 ,每组 10眼 ,均在 ACM维持前房下接受 CCC。 4个实验组所用ACM内径分别是 0 .4、0 .5、0 .6、0 .7mm。 BH由 2 0 cm阶梯式升至 10 0 cm,每 10 cm为一个提升高度。对术前及每个 BH,应用 A超测定 ACD,应用 Schiotz眼压计测定 IOP。结果　内径为 0 .7、0 .6、0 .5 m m的 ACM在 BH分别为 5 0、6 0、70 cm时使 ACD较术前显著性加深 ,所提供 IOP较术前增高。结论　内径较大的 ACM形成前房及提高 IOP迅速 ,所需 BH相对较低。对于兔眼的 CCC,内径为 0 .7、0 .6、0 .5 mm的 ACM均可提供理想的 ACD及IOP,适宜的 BH分别是 5 0、6 0、70 cm。更多还原

【Abstract】 ObjectiveTo measure the anterior chamber depth (ACD) and the intraocular pressure (IOP) created by the anterior chamber maintainers (ACM) with different internal diameters and different bottle height (BH).MethodsForty eyes of 20 rabbits were randomly divided into four groups, each group including 10 eyes. Each eye accepted continuous curvilinear anterior capsulorhexis (CCC) with the anterior chamber maintained by the ACM. Each eye of each group used the same ACM. The internal diameters of these groups were: 0.4, 0.5, 0.6 and 0.7mm. ACD and IOP were measured for every 10cm elevation between 20 and 100 cm BH.ResultsThe ACM with 0.7, 0.6 and 0.5mm internal diameter could significantly deepen the ACD when the BH was 50, 60 and 70 cm respectively and IOP were higher than that of preoperation.ConclusionAn ACM with bigger internal diameter can create the ACD and IOP faster than a smaller one while the lower BH is required. For the CCC of rabbit eyes, the ACM with 0.7, 0.6 and 0.5mm internal diameter can provide ideal ACD and IOP. The proper BH is 50, 60 and 70cm respectively.更多还原