Retrospective Study of the Health Benefits of Ultra-Violet Filtering Contact Lenses
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 41
- 主要终点
- Macular Pigment Optical Density (MPOD) after 5 years of contact lens wear
研究概览
简要总结
The purpose of this study is to examine the long term effect of ultra-violet filtering contact lenses on macular pigment density (MPOD) and accommodative function.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Retrospective
入排标准
- 年龄范围
- 18 Years 至 43 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 否
入选标准
- •The subject is an adapted soft contact lens wearer of at least 5 years duration of either an UV filtering contact lens or a non-UV filtering contact lens
- •The subject must report wearing their contact lenses, on average, for a minimum of 5 days each week.
- •The subject must have best corrected visual acuity of 6/7.5 or better in each eye.
- •The subject must appear able and willing to adhere to the instructions set forth in this clinical protocol.
- •The subject must read and sign the statement of informed consent
- •The subject must be between 18 and 43 years of age
排除标准
- •On medication known to affect accommodation
- •Active ocular surface pathology
- •Had eye surgery
- •Significant ocular tissue anomaly
- •Any medical condition that may be prejudicial to the study
结局指标
主要结局
Macular Pigment Optical Density (MPOD) after 5 years of contact lens wear
时间窗: Approximately 40 minutes
The MPOD will be assessed at a single visit will be compared between wearers of contact lenses with UV protection and those wearers of lenses without UV protection, based on their 5 year wear history.
Amplitude of Accommodation after 5 years of contact lens wear
时间窗: Approximately 40 minutes
Measured with autorefractor at a single visit and will be compared between wearers of contact lenses with UV protection and those wearers of lenses without UV protection, based on their 5 year wear history.
次要结局
未报告次要终点