Cornea, Cataract & Refractive Surgery Services, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
Cornea, Cataract & Refractive Surgery Services, Dr. Rajendra Prasad Centre for Ophthalmic Sciences, All India Institute of Medical Sciences, New Delhi, India.
J Cataract Refract Surg. 2019 Jun;45(6):798-802. doi: 10.1016/j.jcrs.2018.12.024. Epub 2019 Mar 12.
To evaluate stereopsis and visual quality after bilateral implantation of extended range of vision intraocular lenses (ERV IOLs).
R.P. Centre for Ophthalmic Sciences, AIIMS, New Delhi, India.
Prospective interventional study.
Patients underwent phacoemulsification with bilateral implantation of ERV IOLs. The primary outcome measures were stereopsis (distance and near Randot) and visual quality (ray-tracing aberrometry). The secondary outcome measures were visual acuity and patient satisfaction. Follow-up was performed on day 1 and at 1, 3, 6, and 12 months postoperatively.
The study comprised 50 patients (100 eyes). The mean age of the patients was 58.9 years ± 8.9 (SD). At 1 year, the mean distance stereopsis was 103.6 ± 49.1 seconds of arc (arcsec) and near stereopsis was 21.1 ± 2.3 arcsec. Perfect near stereopsis of 20 arcsec was present in 80% of cases, and 82% had good distance stereopsis of 100 arcsec or better. Stereopsis correlated well with the patient satisfaction score (P < .001) and average internal modulation transfer function (MTF) (P < .015). The mean Strehl ratio was 0.029 ± 0.021, MTF was 0.24 ± 0.08, total higher-order aberrations were 0.62 ± 0.41 μm, and coma was 0.25 ± 0.18 μm. The mean binocular uncorrected decimal visual acuities were 0.98 ± 0.07 (distance), 0.82 ± 0.09 (intermediate) and 0.64 ± 0.08 (near). The mean patient satisfaction score was 9.08 ± 1.1, and no case required IOL explantation because of visually disturbing phenomena or patient dissatisfaction.
Excellent stereoacuity was observed after bilateral implantation of ERV IOLs, which correlated well with patient satisfaction and quality of vision.
评估双侧扩展视程人工晶状体（ERV IOL）植入术后的立体视和视觉质量。
印度新德里全印医学科学院 R.P. 眼科中心。
前瞻性干预研究。
患者行超声乳化白内障吸除术联合双侧 ERV IOL 植入术。主要观察指标为立体视（远距和近距 Randot）和视觉质量（光线追踪像差）。次要观察指标为视力和患者满意度。术后第 1 天和 1、3、6、12 个月进行随访。
本研究共纳入 50 例（100 只眼）患者，平均年龄为 58.9±8.9 岁（标准差）。术后 1 年，平均远距立体视锐度为 103.6±49.1 秒（arcsec），近距立体视锐度为 21.1±2.3 arcsec。80%的病例存在 20 arcsec 的完美近距立体视，82%的病例具有 100 arcsec 或更好的良好远距立体视。立体视锐度与患者满意度评分（P<0.001）和平均内部调制传递函数（MTF）（P<0.015）显著相关。平均斯特列尔比为 0.029±0.021，MTF 为 0.24±0.08，总高阶像差为 0.62±0.41μm，彗差为 0.25±0.18μm。双眼未矫正十进制视力分别为 0.98±0.07（远距）、0.82±0.09（中距）和 0.64±0.08（近距）。平均患者满意度评分为 9.08±1.1，无因视觉干扰现象或患者不满意而需要取出 IOL 的病例。
双侧 ERV IOL 植入术后立体视良好，与患者满意度和视觉质量密切相关。
