Effect of the axial position of posterior chamber phakic intraocular lens on the early postoperative vault changes
10.3969/j.issn.1672-8467.2025.01.011
- VernacularTitle:有晶状体眼后房型人工晶状体放置轴向对术后早期拱高变化的影响
- Author:
Yi-lin XU
1
;
Qian JIAN
;
Xun CHEN
;
Yin-jie JIANG
;
Ling-ling NIU
;
Xiao-ying WANG
Author Information
1. 复旦大学附属眼耳鼻喉科医院眼科 上海 200031
- Publication Type:Journal Article
- Keywords:
implantable collamer lens(ICL);
vault;
axial position of intraocular lens;
scheimpflug tomography;
anterior segment optical coherence tomography
- From:
Fudan University Journal of Medical Sciences
2025;52(1):83-90
- CountryChina
- Language:Chinese
-
Abstract:
Objective To observe the early changes of vault after implantation of posterior chamber phakic intraocular lens implantable collamer lens(ICL),and investigate the effect of different implantation axes on the early vault changes.Methods A prospective,parallel cohort study was performed,enrolling a total of 124 eyes of who underwent ICL(V4c)implantation in the refractive clinic.The changes of vault were observed by scheimpflug tomography(Pentacam)and anterior segment optical coherence tomography(CASIA2)at 1 day,1 week and 1 month after surgery.Results The ICL vault declined significantly by approximately(108.2±82.4)μm 1 week after surgery with the proportion of 16.6%±12.1%compared with the values 1 day after surgery(P<0.001),and then remained stable.Within 1 month after surgery,excluding the difference in vault baseline at 1 day after surgery,the proportion of vault decline in the middle vault group(250-749 μm)and the high vault group(≥750 μm)was similar,and there was no statistically significant difference.We analyzed the relationship between ICL axial directions and vault and found that the vault decline of the horizontal ICL group stabilized quickly at 1 week after surgery,and the vault decline of the vertical ICL group was more significant within 1 month after surgery(P<0.05).Conclusion The vault of the ICL shows a downward trend in the early stage after implantation.The middle vault group and ICL in the horizontal position stabilizes faster,and the downward trend of the high vault group or ICL in the vertical position is more obvious.
