散瞳对中心孔型V4c ICL植入术后拱高及前房深度的影响

doi:10.3760/cma.j.cn115909-20190917-00251

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Abstract Objective: To compare visual acuity and refractive status after V4c implantable collamer lens (ICL) implantation; to study the changes in vault, anterior chamber depth (ACD) and anterior chamber angle (ACA) after mydriasis; and to evaluate the safety of mydriasis after V4c ICL implantation. Methods: This was a prospective observational study. Thirty-one myopic patients (a total of 62 eyes) who had undergone V4c ICL implantation surgery from February 2018 to September 2018 at the Department of Ophthalmology in Peking University Shenzhen were chosen for this study. Uncorrected visual acuity (UCVA), best corrected visual acuity (BCVA) and refractive status were evaluated preoperatively and at 6 months postoperatively. The vault, ACD and ACA of patients undergoing V4c ICL implantation were measured by the Sirius anterior segment analysis system before and after mydriasis. Data were analyzed with a paired-samples t test. Results: At 6 months after V4c ICL implantation, the UCVA and BCVA were significantly better than preoperation (t=12.844, t=25.429, respectively, P<0.001 for both). The vaults before and after mydriasis were 465±123 μm and 515±135 μm (t=-8.704, P<0.001), respectively. In addition, the ACD and ACA at 3 and 9 o'clock after mydriasis was significantly deeper than those before mydriasis (t=-9.899, P<0.001; t=-15.306, P<0.001; t=-15.163, P<0.001). Conclusions: V4c ICL implantation is an effective surgery to correct myopia. Using mydriasis after V4c ICL implantation will increase the vault, deepen ACD and widen ACA. Thus, mydriasis is a safe procedure at 6 months after the surgery.

Key words： mydriasis V4c implantable collamer lens vault anterior chamber depth anterior chamber angle myopia

Received: 17 September 2019

Fund:Shenzhen Healthcare Research Project (20160501)

Corresponding Authors: Jinying Li, Department of Ophthalmology, Peking University Shenzhen Hospital, Shenzhen 518036, China (Email: ljyszbdyy@126.com)

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https://www.cjoovs.com/EN/10.3760/cma.j.cn115909-20190917-00251 OR https://www.cjoovs.com/EN/Y2020/V22/I7/506

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