Comparison of the effects of different sizes of capsular tension ring on the stability of capsular bag in patients with high myopia and cataract after sur-gery
10.13389/j.cnki.rao.2024.0151
- VernacularTitle:不同尺寸囊袋张力环对高度近视合并白内障患者术后囊袋稳定性的影响
- Author:
Xiaojing LIU
1
;
Yue ZHANG
;
Yanhui XU
;
Zhimin CHEN
Author Information
1. 050017 河北省石家庄市,河北医科大学眼科学教研室;054001 河北省邢台市,河北省眼科医院,河北省眼科学重点实验室,河北省眼部疾病临床医学研究中心
- Keywords:
high myopia;
cataract;
capsular tension ring;
zonular fibers relaxation;
stability of capsular bag
- From:
Recent Advances in Ophthalmology
2024;44(10):796-801
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effect of different sizes of capsular tension ring(CTR)on the stability of the capsular bag of patients with high myopia accompanied by cataract after surgery.Methods In this prospective study,75 patients(150 eyes)with high myopia and cataract visited our hospital from January 2022 to June 2022 were selected.These patients were divided into the large-size group,small-size group and control group using the random number table,with 25 patients(50 eyes)in each group.All affected eyes underwent phacoemulsification combined with intraocular lens(IOL)implantation.CTR1311(with an open diameter of 13mm)was implanted in patients of the large-size group,CTR1210(with an open diameter of 12mm)was implanted in patients of the small-size group,and no CTR was implanted in patients of the control group.The uncorrected visual acuity(UCVA),best corrected visual acuity(BCVA),intraocular pressure(IOP),corneal endothelial cell density(ECD),effective lens position(ELP),mean absolute refractive error,an-terior capsular area and complications of patients in the three groups were compared before,1 month,3 months,6 months and 1 year after the surgery.Results One year after the surgery,the UCVA and BCVA of patients in the three groups im-proved than those before surgery(all P＜0.05),and the IOP and corneal ECD had no significant difference from those be-fore surgery(all P＞0.05).At different times after the surgery,the IOL tilt in patients who underwent CTR implantation was significantly lower than that of patients in the control group(all P＜0.05),and the IOL tilt in the small-size group was higher than that in the large-size group(all P＜0.05);the IOL eccentricity in patients of the three groups had no significant difference(all P＞0.05).At 6 months after the surgery,the postoperative IOL eccentricity and tilt of patients with an axial length＞30 mm in the large-size group were smaller than those of patients in the small-size group(both P＜0.05).At dif-ferent times after the surgery,the anterior capsular area of patients in the control group was significantly smaller than that of the large-size group and small-size group(all P＜0.05),and there was no significant difference in the anterior capsular area between the large-size group and small-size group(all P＞0.05).At 6 months after the surgery,the mean absolute re-fractive error of patients in the control group was greater than that of the large-size group and small-size group(both P＜0.05),and there was no significant difference in the mean absolute refractive error between the large-size group and small-size group(P＞0.05).During the 1-year follow-up,there were no severe complications in the three groups.Conclusion Phacoemulsification combined with CTR implantation is effective for patients with high myopia and cataract.The postop-erative IOL of patients who received large-size CTR implantation is more stable than that of patients who underwent small-size CTR implantation.For patients with an axial length＞30mm,large-size CTR implantation is recommended.
