Changes in the central vault after collamer lens implantation and its impact
Xu Jing*,Luo Yan,Lin Yannan,Li Ying
Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Science & Peking Union Medical College, Beijing 100730, China
Objective To investigate changes in the central vault one year after collamer lens (PPC-ICL) implantation surgery and its impact factors. Methods This retrospective study included 134 eyes of 69 patients. Mean spherical equivalent (SE) was -12.28±3.80 diopters (D) (range: -5.00 to -20.50 D) for those who underwent PPC-ICL implantation. In addition to a complete ophthalmologic examination, the central vault was measured with Topcon OCT and evaluated during the follow-up period (1 month to 1 year, postoperatively). Data were analyzed using repeated measures ANOVA, multiple linear regression analysis. Results Within the first year, the mean central vault dropped from 576±247 µm (range 112 to 1 131 µm) to 512±238 µm (range 159 to 1 168 µm). This decrease was significant by 65±85 µm (range -210 to 135 µm) (F=7.11, P<0.01) within this period. Regression fomula showed 1 month and 1 year postoperation vault was negative related with SE, but positive related with diopter and overall length of the PPL-ICL (R2=0.389, 0.434, F=17.15, 21.15, P<0.01). White-to-white (WTW) diameter and the overall length of the PPC-ICL (R2=0.500, F=7.99, P<0.05) were factors that were significantly associated with a decrease in the vault between 1 year and 1 month postoperation. Conclusion A significant reduction in the central vault occurred from 1 month to 1 year, postoperatively. The decrease in the vault was more pronounced in eyes with a larger WTW and a smaller overall diameter.
徐婧,罗岩,林燕楠,李莹. 有晶状体眼后房型人工晶状体植入术后拱高的变化及相关影响因素[J]. 中华眼视光学与视觉科学杂志, 2016, 18(12): 714-718.
Xu Jing*,Luo Yan,Lin Yannan,Li Ying. Changes in the central vault after collamer lens implantation and its impact. Chinese Journal of Optometry Ophthalmology and Visual science, 2016, 18(12): 714-718. DOI: DOI:10.3760/cma.j.issn.1674-845X.2016.12.003
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