不同放置方向对有晶状体眼后房型人工晶状体植入术后拱高变化的影响

doi:10.3760/cma.j.cn115909-20210220-00066

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Abstract Objective: To investigate the changes in lens vault after implantation of implantable collamer lenses (ICL) with different posterior chamber positions. Methods: This was a retrospective case series study. Fortyseven patients (94 eyes) who underwent ICL implantations and were followed up beyond 1 year were enrolled from Qingdao Xinshijie Eye Hospital between January 2018 and December 2019. Patients were divided into 2 groups, a horizontal group (48 eyes, 24 cases) and a vertical group (46 eyes, 23 cases), based on the posterior chamber position of the ICL. Lens vaults were measured by optical coherence tomography (OCT) at 1 week, 1 month, 3 months, 6 months and 1 year after the operation. The data were analyzed by a χ2 test, independent-samples t test and paired-samples t test. Results: There were no significant differences in the vault between the groups at any postoperative follow-up time. The vault in both groups continued to decrease until 1 year after the operation (P<0.001). From 1 week to 1 month after the operation, the vault decreased more significantly in the vertical group compared to the horizontal group (t=-2.692, P=0.008). There was no difference between the groups in the degree of decrease at any other follow-up time. Conclusions: Within 1 year after the operation, the vault continuously decreases and is unrelated to the horizontal or vertical position of the ICL. When the ICL is placed vertically, the vault decreases even more in the first month postoperative period.

Key words： vault phakic intraocular lenses optical coherence tomography

Received: 20 February 2021

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Corresponding Authors: Haiqing Bai, Department of Ophthalmology, the Affiliated Hospital of Qingdao University, Qingdao 266003, China (Email: haiqing_bai@126.com)

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https://www.cjoovs.com/EN/10.3760/cma.j.cn115909-20210220-00066 OR https://www.cjoovs.com/EN/Y2021/V23/I8/610

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