摘要
目的使用Pentacam三维眼前节分析诊断系统记录白内障超声乳化术后患者前房容积(anterior chamber volume,ACV)、前房深度(anterior chamber depth,ACD)及人工晶状体位置,探讨它们的变化和屈光漂移的关系。方法在术前,术后第1天、1周、2周、1个月,使用Pentacam系统测量40例(40眼)白内障患者的ACV、ACD等,同时使用自动验光仪记录它们的角膜地形图及屈光状态。使用非参数检验方法,对收集的数据进行统计分析。结果验光显示患者白内障术后2周屈光度为(-1.13±1.00)D、术后1个月为(-1.34±1.20)D、术后3个月为(-1.23±1.10)D,近视度均比术后第1天显著增加(均为P<0.05)。Pentacam系统检查显示,白内障术后2周患者ACD为(3.12±0.23)mm、ACV为(131.00±45.57)mm^3,术后1个月ACD为(2.37±0.22)mm、ACV为(129.00±41.33)mm^3,术后3个月ACD为(2.70±0.33)mm、ACV为(131.00±43.27)mm^3,均比术后第1天显著减少(均为P<0.05)。患者术后屈光度变化和ACD变化呈正相关(r_(1周)=0.76,r_(2周)=0.78,r_(1个月)=0.79,r_(3个月)=0.75,均为P<0.05)。但是,患者术后屈光度变化、ACD变化和术前ACD的相关性均无统计学意义((r=-0.42、-0.56,均为P>0.05)。结论白内障手术患者,术后存在屈光飘移的可能,影响术后视功能。人工晶状体植入术后早期的屈光飘移与ACD的变化密切相关。
Objective To measure the anterior chamber volume（ACV）,anterior chamber depth（ACD） and position of intraocular lens in the cataract patients after phacoemulsification by Pentacam system,and analyze the correlation between anterior segment changes and refractive shift. Methods AC V,ACD,and K m（corneal curvature） were measured in 40 cataract patients（40 eyes） before phacoemulsification and 1 day,1 week,2 weeks,1 month,3 months after phacoemulsification by Pentacam system. The corneal topography and refraction were recorded by automatic optometry instrument. The data were statistically analyzed by non-parametric test. Results After medical optometry,it was showed that the average refraction was（- 1. 13 ± 1. 00） D at 2 weeks after surgery,（- 1. 34 ± 1. 20） D at 1 month after surgery and（- 1. 23 ± 1. 10） D at 3months after surgery. There were statistically significant differences between them and the first day after surgery in the average refraction（all P 〈 0. 05）. Pentacam system showed that the average ACD was（3. 12 ± 0. 23） mm,the average AC V was（131. 00 ± 45. 57） mm^3 at 2 weeks after surgery,（2. 37 ± 0. 22） mm,（129 ± 41. 33） mm3 at 1 month after surgery,and（2. 70 ± 0. 33） mm,（131. 00 ±43. 27） mm^3 at 3 month after surgery. There was statistically significant difference between them and the first day after surgery in the ACD and AC V（all P 〈 0. 05）. The positive correlation was found between the changes of refractive power and changes of ACD（r_（1 week）= 0. 76,r_（2 weeks）= 0. 78,r_（1 month）= 0. 79,r_（3 months）= 0. 75,all P 〈 0. 05）,but there was no statistically significant difference in the correlation between the changes of refractive power,changes of ACD after surgery and ACD before surgery（r =- 0.42,- 0. 56,all P 〉 0. 05）. Conclusion The phenomenon of refractive drift may exists in the cataract patients after intraocular lens implantation,will affects the visual function,which is closely related with the changes of ACD.
出处
《眼科新进展》
CAS
北大核心
2016年第3期268-270,共3页
Recent Advances in Ophthalmology
