声速调整法测量硅油填充眼人工晶状体度数的准确性研究

目的评价声速调整法测量硅油填充眼人工晶状体度数的精确性。设计回顾性比较性病例系列。研究对象硅油填充眼并发白内障患者89例(99眼)。方法根据硅油填充眼眼轴测量方法的不同,包括调整超声波传导速度直接测量硅油填充眼眼轴、超声测量硅油填充前眼轴和对侧眼眼轴,将患眼分为直接法组(37眼)、预留法组(32眼)和参照法组(30眼)。各组术前均利用ALCON超声诊断仪(探头频率10 MHz)进行人工晶状体度数测算,公式均选用SRKⅡ。手术方式均为硅油取出联合透明角膜切口白内障超声乳化及折叠人工晶状体植入术。术后随访3~8个月,分析比较最后一次随访时各组验光结果,并与预计屈光度进行比较。主要指标患眼术后屈光度。结果术后完全达到预计屈光度的眼数分别为:直接法组25眼(67.66%),预留法组10眼(31.33%),参照法组8眼(26.71%)。经卡方检验,直接法组比其他两组术后完全达到预计屈光度者明显高(P=0.009,0.003)。结论通过比较三种方法的术后屈光度达到术前预留屈光度的比例,表明声速调整法测量硅油填充眼人工晶状体度数的方法较为准确。

The accuracy of measuring the refractive power of intraocular lens in silicone oil tamponade eyes by adjusting ultrosonic speed

Objective To investigate the accuracy of measuring the refractive power of intraocular lens in silicone oil tamponade eyes by adjusting ultrosonic speed.Design Retrospective comparative case series.Participants Eighty-nine patients(99 eyes) with sili-cone oil tamponade.Methods The eyes were divided into three groups by different ways of intraocular lens refractive power calcula-tion.There were 37 eyes in the group of the direct method;32 eyes in the group of prospective method;30 eyes in the group of com-pa...