Original Article
Effect of ICL-V4c Implantation in Treatment of Ultra-High Myopia
Xiong Ying, Sun Xiuli, Mao Yingyan, Li Jing, Cao Kai, Zhang Jingshang, Wang Jinda, Wan Xiuhua
Published 2021-04-25
Cite as Chin J Optom Ophthalmol Vis Sci, 2021, 23(4): 292-297. DOI: 10.3760/cma.j.cn115909-20201010-00383
Abstract
Objective:To observe the safety and effectiveness of ICL-V4c implantation in the treatment of ultra-high myopia over -10 D, and to explore the relationship and rules between the improvement of vision (△LogMAR) and preoperative spherical diopter (SD).
Methods:This was a retrospective study. Eight hundred and two patients (1 380 eyes) with ultra-high myopia were treated by ICL-V4c implantation in Beijing Tongren Hospital from December 2016 to January 2020. The preoperative SD was -23.50 D≤SD≤-6.00 D (mean -11.54±3.59 D). The patients were divided into group A (-10 D<SD≤-6 D) and group B (-23.5 D≤SD≤-10 D) according to their preoperative SD. Group B was further divided into five sub groups: B1 (-13 D<SD≤-10 D), B2 (-16 D<SD≤-13 D), B3 (-19 D<SD≤-16 D), B4 (-22 D<SD≤-19 D) and B5 (-23.5 D≤SD≤-22 D). The preoperative and postoperative visual acuity at 1 week and 2 months and improvement in visual acuity and intraocular pressure of the patients were analyzed by Kruskal-Wallis test and Chi-square test.
Results:The postoperative SD and best corrected visual acuity (BCVA) of patients in group B were significantly improved (P<0.001). Both mean safety and effectivity indices were >1. There was a significant correlation between △LogMAR and group (P<0.001). △LogMAR in the B3 and B4 groups was significantly higher than that in A, B1 and B2 groups (adjusted,P<0.001). The intraocular pressure (IOP) in group B was higher than that in group A (P<0.001), and the proportion of postoperative high IOP was higher (P=0.008).
Conclusions:ICL implantation is safe and effective for patients with ultra-high myopia over -10 D, but the long-term effect needs further explorations. The improvement of BCVA in patients with -22 D≤SD≤-16 D was higher than that of patients with -16 D<SD≤-6 D.
Key words:
posterior chamber intraocular lens of phakic eye; efficacy of central hole phakic implantable contact lens V4c; super-high myopia; refractive surgery
Contributor Information
Xiong Ying
Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
Sun Xiuli
Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
Mao Yingyan
Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
Li Jing
Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
Cao Kai
Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
Zhang Jingshang
Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
Wang Jinda
Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
Wan Xiuhua
Beijing Institute of Ophthalmology, Beijing Tongren Eye Center, Beijing Key Laboratory of Ophthalmology and Visual Sciences, Beijing Tongren Hospital, Capital Medical University, Beijing 100005, China
