From the Raghudeep Eye Hospital, Ahmedabad, Gujarat, India.
J Cataract Refract Surg. 2024 Aug 1;50(8):799-804. doi: 10.1097/j.jcrs.0000000000001458.
To compare visual outcomes and patient satisfaction after bilateral implantation of a nondiffractive extended vision intraocular lens (IOL) when targeting emmetropia vs mini-monovision.
Iladevi Cataract & IOL Research Centre, Ahmedabad, India.
Prospective, randomized controlled trial.
Patients undergoing bilateral cataract surgery with an extended vision IOL (Vivity) randomized to group I-IOL implantation with emmetropic target in both eyes or group II-IOL implantation with mini-monovision of -0.5 diopters (D) were included in this study. Outcome measures evaluated 6 months postoperatively were unaided and corrected near visual acuity (UNVA, CNVA) at 40 cm and unaided and corrected distance (UDVA, CDVA) and intermediate (UIVA, CIVA) visual acuity at 66 cm. Mesopic contrast sensitivity, binocular defocus curve, Patient-Reported Spectacle Independence Questionnaire, and satisfaction on the McAlinden questionnaire were also assessed.
70 patients enrolled in this study. 34 and 33 patients in groups I and II, respectively, completed follow-up. Binocular UNVA was significantly better in group II (0.26 ± 0.05 vs 0.22 ± 0.08 logMAR, P = .03). Reading add required in group II was significantly lower. UIVA (0.09 ± 0.06 vs 0.07 ± 0.08 logMAR, P = .15) and UDVA (0.02 ± 0.04 vs 0.02 ± 0.05 logMAR, P = .78) were not significantly different between groups. Mesopic contrast sensitivity was not significantly different between the groups. Binocular defocus curve showed significantly better mean visual acuities between -2.0 D and -3.0 D in group II. Patients in both groups had high levels of spectacle independence, with no patient reporting dysphotopsia.
Binocular UNVA was significantly better, with comparable UDVA and mesopic contrast sensitivity when targeting mini-monovision with the nondiffractive extended vision IOL as compared with targeting binocular emmetropia.
比较非衍射扩展视域人工晶状体（IOL）在双眼植入时针对正视眼与微单眼的术后视力结果和患者满意度。
印度艾哈迈达巴德 Iladevi 白内障与 IOL 研究中心。
前瞻性、随机对照试验。
本研究纳入了接受双侧白内障手术并植入扩展视域 IOL（Vivity）的患者，随机分为两组：I 组双眼植入 IOL 以实现正视目标，II 组双眼植入 IOL 以实现 -0.5 屈光度（D）的微单眼。术后 6 个月评估的结果包括：40cm 时未矫正和矫正的近视力（UNVA，CNVA）、66cm 时未矫正和矫正的远视力（UDVA，CDVA）和中间距离视力（UIVA，CIVA）。还评估了中间视觉对比度敏感度、双眼离焦曲线、患者报告的眼镜独立性问卷和 McAlinden 问卷的满意度。
本研究共纳入 70 例患者，其中 34 例和 33 例患者分别入组 I 组和 II 组并完成了随访。II 组的双眼 UNVA 显著更好（0.26±0.05 与 0.22±0.08 logMAR，P=.03）。II 组需要的阅读附加度数明显较低。UIVA（0.09±0.06 与 0.07±0.08 logMAR，P=.15）和 UDVA（0.02±0.04 与 0.02±0.05 logMAR，P=.78）在两组间无显著差异。两组间中间视觉对比度敏感度无显著差异。双眼离焦曲线显示，在 -2.0D 至 -3.0D 之间，II 组的平均视力显著更好。两组患者的眼镜独立性均较高，无患者报告出现光幻视。
与针对双眼正视目标相比，非衍射扩展视域 IOL 针对微单眼目标时，双眼 UNVA 显著更好，且远视力和中间视觉对比度敏感度相当。
