NCT01321424已完成不适用
Investigator Sponsored, Pilot Study to Assess the Diurnal Variation in Tear Osmolarity as a Predictor of Dry Eye Disease Etiology
适应症
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 60
- 试验地点
- 2
- 主要终点
- The measured difference in Tear Osmolarity during the course of the day to support clinical diagnosis and differentiate between aqueous-deficiency and meibomian gland disease.
研究概览
简要总结
The purpose of this study is to measure the change in Tear Osmolarity during the course of the day to support clinical diagnosis of aqueous deficiency or meibomian gland disease and differentiate between the two forms of dry eye.
详细描述
The premise of this study is that dry eye disease, specifically tear osmolarity, changes during the course of the day based on the etiology of the dry eye and that aqueous-deficiency dry eye will worsen during the course of the day while meibomian gland deficiency will stabilize or possibly even improve during the course of the day.
研究设计
- 研究类型
- Observational
- 观察模型
- Case Control
- 时间视角
- Cross Sectional
入排标准
- 年龄范围
- 18 Years 至 —（Adult, Older Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Healthy males and females ≥ 18 years old
- •Negative urine pregnancy results for females of childbearing potential
- •Able to read and sign an informed consent form and show willingness to comply with the study protocol visits and procedures
- •Has 20/40 BCVA or better in at least one eye
- •Does not currently wear contact lenses
- •For Aqueous-Deficiency Group:
- •Has symptoms of Dry Eye
- •Schirmer testing ≤ 10 mm
- •Tear Break Up Time ≤ 8 seconds
- •Conjunctival staining ≥ 1+
- •Meibomian gland inspissations ≤ 1+
- •No lid thickening, lid erythema, or thickened, turbid meibomian gland secretions
- •For Meibomian Gland Disease Group:
- •Has symptoms of Dry Eye
- •Schirmer testing ≥ 10 mm
- •Tear Break Up Time ≤ 8 seconds
- •Conjunctival staining ≥ 1+
- •Meibomian gland inspissations ≥ 2+
- •For Normal Group:
- •Has no symptoms of Dry Eye
- •Schirmer testing > 10 mm
- •Tear Break Up Time > 8 seconds
- •No or trace Conjunctival staining
- •No Meibomian gland inspissations
排除标准
- •Any topical medication within the last three months, except for artificial tears
- •Unable to discontinue use of artificial tears during the course of the day for Visit 2
- •Any Systemic disease, which in the opinion of the Investigator, may affect ocular health or confound study results
- •Any active ocular disease other than Dry Eye Disease, Meibomian Gland Disease or Sjogren's Syndrome, which in the opinion of the Investigator, may affect ocular health or confound study results
- •Clinically significant lid or conjunctival abnormalities, neovascularization, corneal scars or corneal opacities
- •Clinically significant limbal or bulbar injection, or corneal staining not due to DES
- •Has worn hard or rigid gas permeable contact lenses within 1 year
- •Has worn soft contact lenses within 1 week
- •Has had eye surgery or an eye injury within 6 months
- •Positive urine pregnancy results for females of childbearing potential
- •Any changes in current medication within 30 days of Visit 2 or anticipated change during course of study, which in the opinion of the Investigator may confound study results
结局指标
主要结局
The measured difference in Tear Osmolarity during the course of the day to support clinical diagnosis and differentiate between aqueous-deficiency and meibomian gland disease.
时间窗: 1 Day (AM and PM Diurnal)
次要结局
- Ocular Improvement(31 Days)
研究者
研究点 (2)
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