NCT00886119已完成不适用
Lotrafilcon B Multifocal Evaluations - Comparison to a Traditional Multifocal in Higher Spectacle Adds
CIBA VISION0 个研究点目标入组 48 人开始时间: 2009年4月1日最近更新:
适应症
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 发起方
- 入组人数
- 48
- 主要终点
- Corrected Distance Binocular Visual Measurement in Normal Illumination Reported as Binocular Distance Visual Acuity
研究概览
简要总结
The purpose of the trial is to compare the performance of two multifocal contact lens systems/products in established presbyopic subjects.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Crossover
- 主要目的
- Treatment
- 盲法
- Single (Participant)
入排标准
- 年龄范围
- 35 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •Be at least 35 years of age.
- •Best-corrected visual acuity of at least 20/40 in each eye.
- •Spectacle add from +1.50D and +2.50D (inclusive).
- •Able to be fit in available study sphere powers (Plano to -4.00D).
- •Currently wearing soft contact lenses at least 5 days a week.
- •Other protocol inclusion /
排除标准
- •Exclusion Criteria:
- •Requires concurrent ocular medication.
- •Eye injury or surgery within twelve weeks immediately prior to enrollment.
- •Currently enrolled in an ophthalmic clinical trial.
- •Evidence of systemic or ocular abnormality, infection or disease likely to affect successful wear of contact lenses or use of their accessory solutions.
- •Previous refractive surgery.
- •Astigmatism > 1.00D.
- •Currently wearing Proclear Multifocal, Frequency 55 Multifocal or Biomedics EP contact lenses.
- •Other protocol inclusion / exclusion criteria may apply.
结局指标
主要结局
Corrected Distance Binocular Visual Measurement in Normal Illumination Reported as Binocular Distance Visual Acuity
时间窗: After 1 week of wear
Tested while reading charts distant to the subject with both eyes together in normal lighting. This outcome is measured in logMAR units (logarithm of the minimum angle of resolution). A logMAR acuity of 0.0 equates to 20/20 Snellen acuity and is considered normal. Positive logMAR values indicate poorer vision and negative values denote better visual acuity.
次要结局
未报告次要终点
研究者
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