双襻式与四襻式人工晶状体在高度近视眼内稳定性的比较

doi:10.3760/cma.j.cn115909-20191115-00308

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Abstract Objective: To compare the stability of two-haptic and four-haptic intraocular lenses (IOL) in high myopic eyes. Methods: In this retrospective case-control study, 148 high myopic patients who received uneventful phacoemulsification with the implantation of a two-haptic IOL (Tecnis ZCB00, AMO) or four-haptic IOL (MC X11 ASP, HumanOptics) during October 2016 to June 2017 at the Eye & ENT Hospital of Fudan University were selected. Of these, 54 were in the two-haptic IOL group, and 94 in the four-haptic IOL group. Follow-up was planned for six months after surgery, including routine postoperative examinations. An OPD-Scan III aberrometer was used to evaluate the decentration and tilt of the IOL, higher-order aberrations, and modulation transfer function. Comparisons of IOL decentration and tilt, and visual qualities were conducted between the two groups. An independent-sample t-test, Mann-Whitney U-test, χ2 test, and Spearman correlation test were used in statistical analyses. Results: No statistically significant difference in terms of age, gender, or best-corrected visual acuity was seen between the two groups. However, significant differences were seen between the decentration of the two-haptic IOL group and the four-haptic IOL group when they were divided into subgroups of axial lengths between 26 mm and <28 mm, and between 28 mm and <30 mm [0.26(0.15, 0.33)mm vs. 0.18(0.10, 0.24)mm, Z=-2.81, P=0.005; (0.42±0.28)mm vs. (0.18±0.07)mm, t=2.96, P=0.01]. Meanwhile, significant correlations were found between decentration and axial length in both the two-haptic IOL group (r=0.304, P=0.027) and four-haptic IOL group (r=0.366, P<0.001). Under conditions of a pupil size of 7 mm, better ocular and intraocular higher-order aberrations and coma were seen in the four-haptic IOL group (all P<0.05). Conclusions: For high myopic eyes, the four-haptic IOL seems to be better than the two-haptic IOL in terms of long-term IOL stability and visual quality, especially in low-light conditions.

Key words： intraocular lens haptic design high myopia decentration visual quality

Received: 15 November 2019

Fund:National Natural Science Foundation of China (81670835)

Corresponding Authors: Xiangjia Zhu, Department of Ophthalmology, Eye & ENT Hospital of Fudan University, Key Laboratory of Myopia of National Health Commission of the People's Republic of China; Shanghai Key Laboratory of Visual Impairment and Restoration, Shanghai 200031, China (Email: zhuxiangjia1982@126. com)

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https://www.cjoovs.com/EN/10.3760/cma.j.cn115909-20191115-00308 OR https://www.cjoovs.com/EN/Y2020/V22/I8/561

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