Effect of Spherical Aberration on the Optical Quality After Implantation of Two Different Aspherical Intraocular Lenses
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 60
- 主要终点
- Modulation transfer function (MTF) at 3 months after surgery
研究概览
简要总结
Purpose: To compare the effect of spherical aberration on optical quality in eyes with two different aspherical intraocular lenses Methods: In this prospective, randomized clinical trial 120 eyes of 60 patients underwent phacoemulsification. In patient's eyes an aberration-free aspherical IOL (Aspira-aA; Human Optics) or an aberration-correcting aspherical IOL (Tecnis ZCB00; Abott Medical Optics) were randomly implanted. Three months after surgery visual acuity, contrast sensitivity, wavefront measurements with iTrace as well as tilt and decentration measurements with Visante anterior segment OCT were performed.
研究设计
- 研究类型
- Observational
- 观察模型
- Cohort
- 时间视角
- Prospective
入排标准
- 年龄范围
- 50 Years 至 85 Years（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Bilateral age-related cataract
- •Potential postoperative visual acuity of 1.0 Snellen
- •No relevant ocular pathology other than cataract
- •Written informed consent to surgery and participation in the study
排除标准
- •Amblyopia, diabetic retinopathy, uveitis or other relevant ophthalmic diseases
- •Optical media disturbances due to: corneal and vitreal opacity, PEX
- •Preceding ocular trauma or ocular surgery within 6 months
- •Inability to cooperate
- •Pregnancy (a pregnancy test will be performed preoperatively in women of reproductive age)
结局指标
主要结局
Modulation transfer function (MTF) at 3 months after surgery
时间窗: 3 months
次要结局
未报告次要终点
研究者
Michael Lasta
Principal investigator
Hospital Hietzing