Lee Do-Hyung, Shin Soo-Cheol, Joo Choun-Ki
Department of Ophthalmology, Ilsan Paik Hospital, Inje University, Koyang, Kyunggyi-do, South Korea.
J Cataract Refract Surg. 2002 May;28(5):843-6. doi: 10.1016/s0886-3350(01)01174-9.
To evaluate the effect of a capsular tension ring (CTR) on the tilting and decentration of intraocular lenses (IOLs) after cataract surgery.
Department of Ophthalmology, Ilsan Paik Hospital, Inje University, Kyunggyi-do, Korea.
Cataract surgery was performed in both eyes of 20 patients ranging in age from 57 to 75 years. The 40 eyes were divided into 2 groups based on whether a CTR (Lucid Korea) was implanted. Each patient received a CTR in 1 eye only. All IOLs (AcrySof MA60BM, Alcon) were implanted in the capsular bag after a continuous curvilinear capsulorhexis smaller than the IOL optic was created and phacoemulsification performed. The extent of IOL tilting and decentration was measured with the EAS-1000 anterior eye segment analysis system 7, 30, and 60 days after surgery.
The extent of IOL decentration was statistically significantly less in eyes with both an IOL and CTR than in those with an IOL only. The mean decentration in the CTR-IOL group was 0.38 mm +/- 0.16 (SD) at 7 days, 0.43 +/- 0.15 mm at 30 days, and 0.42 +/- 0.17 mm at 60 days. The mean values in the IOL-only group were 0.49 +/- 0.11 mm, 0.53 +/- 0.14 mm, and 0.57 +/- 0.16 mm, respectively. The amount of IOL tilting was also significantly less in the CTR-IOL group. The mean tilting in the CTR-IOL group was 2.22 +/- 0.46 degrees at 7 days, 2.36 +/- 0.50 degrees at 30 days, and 2.47 +/- 0.40 degrees at 60 days. The mean values in the IOL-only group were 3.14 +/- 0.65 degrees, 2.91 +/- 0.67 degrees, and 3.06 +/- 0.56 degrees, respectively.
These results indicate that the CTR reduces undesirable postsurgical IOL movement for at least 60 days.
评估囊袋张力环（CTR）对白内障手术后人工晶状体（IOL）倾斜和偏心的影响。
韩国京畿道仁川圣母医院庆熙大学眼科。
对20例年龄在57至75岁之间的患者的双眼进行白内障手术。根据是否植入CTR（韩国Lucid公司）将40只眼分为2组。每位患者仅在一只眼中植入CTR。在制作小于IOL光学部的连续环形撕囊并进行超声乳化后，将所有IOL（爱尔康AcrySof MA60BM）植入囊袋内。在术后7天、30天和60天，使用EAS - 1000眼前节分析系统测量IOL倾斜和偏心的程度。
植入IOL和CTR的眼内IOL偏心程度在统计学上显著低于仅植入IOL的眼。CTR - IOL组在7天时的平均偏心度为0.38 mm±0.16（标准差），30天时为0.43±0.15 mm，60天时为0.42±0.17 mm。仅植入IOL组的平均值分别为0.49±0.11 mm、0.53±0.14 mm和0.57±0.16 mm。CTR - IOL组的IOL倾斜量也显著较小。CTR - IOL组在7天时的平均倾斜度为2.22±0.46度，30天时为2.36±0.50度，60天时为2.47±0.40度。仅植入IOL组的平均值分别为3.14±0.65度、2.91±0.67度和3.06±0.56度。
这些结果表明，CTR可减少术后至少60天内IOL的不良移动。
