Evaluation of posterior chamber implantable collamer lens with a central hole for myopic correction
10.19405/j.cnki.issn1000-1492.2017.06.031
- VernacularTitle:中央孔型有晶状体眼后房型人工晶体矫正高度近视的临床研究
- Author:
Lei TANG
;
Rongfeng LIAO
- Keywords:
myopia;
astigmatism;
ICL;
TICL
- From:
Acta Universitatis Medicinalis Anhui
2017;52(6):915-920
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the effectiveness,safety,predictability and stability of a new posterior chamber implantable collamer lens with central hole to correct myopia.Methods 111 eyes of 58 patients were evaluated,including uncorrected (UCVA) and best corrected (BCVA) visual acuities,spherical equivalent(SE),cylindrical equivalent(CE),contrast sensitivity,intraocular pressure evaluated preoperatively.75 eyes of 41 patients were implanted with ICL V4c(ICL group) while 36 eyes of 21 patients were implanted with Toric ICL V4c(TICL group).Postoperative observation and adverse events were evaluated over 3 months follow-up.Results 3 months after surgery,the mean UCVA in ICL group was 1.0 or better in 58.67%.The UCVA of 61 eyes (95.31%) was more than BCVA before operation.The mean SE was (-0.26±1.16) D,66.67% of 50 eyes were within ±0.50 D.The safety and efficacy indices were 1.37 and 1.31,respectively.The mean UCVA in TICL group was 1.0 or better in 86.11%.The UCVA of 32 eyes (96.97%) was more than BCVA before operation.The mean SE was (0.08±0.84) D,63.89% of 23 eyes were within ±0.50 D.And the mean CE was (-0.34±0.54) D,66.67% of 24 eyes were within±0.50D.The safety and efficacy indices were 1.32 and 1.30,respectively.The postoperative contrast sensitivity values in two groups were found significantly higher than those of the preoperative eyes.The IOP remained stable over time.Conclusion Implantation of the posterior chamber ICL with a central hole is effective,safe,predictable,and stable for the correction of high myopia.
