Evaluation of the CooperVision, Inc. Invigor A and Invigor B Silicone Hydrogel Daily Wear Contact Lenses When Used for Frequent Replacement for Up to One (1) Month of Daily Wear
试验速览
- 阶段
- 不适用
- 状态
- 已完成
- 入组人数
- 88
- 试验地点
- 12
- 主要终点
- Number of Eyes With Epithelial Edema - Slit Lamp Findings
研究概览
简要总结
The aim of the study is to evaluate if the performance of Invigor A is substantially equivalent to Invigor B contact lenses when used in a one month recommended replacement, daily wear modality.
详细描述
This study is a multi-centered, daily wear, monthly replacement, bilateral, randomized in a ratio of two to one (2:1) Test to Control, lens blocked (subjects remain in the same lens brand throughout the study), licensed investigator and subject masked, concurrent controlled study with a study duration of approximately three months evaluating performance equivalence of Invigor A (test) over Invigor B (control) contact lenses.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Treatment
- 盲法
- Double (Participant, Investigator)
盲法说明
The subject will know the name of the lens however they will not be aware of which lens is investigational and which lens has been previously cleared. The licensed investigator has not been informed which lens is the investigational lens.
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
- •Be at least 18 years of age as of the date of evaluation for the study
- •Read the informed consent document
- •Been given an explanation of the informed consent document
- •indicated understanding of the informed consent document
- •Signed the informed consent document
- •Be willing and able to adhere to the instructions provided by the investigational site and be willing to keep all specified appointments.
- •Be an adapted, frequent replacement, current full - time silicone hydrogel or soft contact lens wearer. An adapted full- time wearer is defined as wearing contact lenses at least 5 days per week for at least 8 hours per day for at least one month prior to participation in the study.
- •Possess or obtain prior to dispensing, wearable and visually functional (20/40 or better) eyeglasses.
- •Be in good general health, based on his/her knowledge.
排除标准
- •Wearing lenses in a monovision modality and is unwilling to be fit with distance lenses in both eyes for the duration of the study. Note: Subjects may not wear lenses in a monovision modality at any time during the study as it will interfere with the visual acuity analysis.
- •Poor personal hygiene.
- •Any active participation in another clinical trial during this trial or within 30 days prior to this study.
- •To the best of the subject's knowledge, she is currently pregnant, is lactating or is planning a pregnancy within the next 3 months.
- •A member, relative or household member of the investigator(s) or of the investigational office staff.
- •A known sensitivity to the ingredients used in the multi-purpose solution approved for use in the study and is unable or unwilling to use the alternate care system.
- •Had previous refractive surgery; or current or previous orthokeratology treatment.
- •Aphakic or pseudophakic.
- •Ocular or systemic disease such as, but not limited to: anterior uveitis or iritis (past or present), glaucoma, Sjögren's syndrome, lupus erythematosus, scleroderma, keratoconus or uncontrolled diabetes.
- •The need for topical ocular medications or any systemic medication which might interfere with contact lens wear or require the lenses to be removed during the day.
- •A known history of corneal hypoesthesia (reduced corneal sensitivity), corneal ulcer, corneal infiltrates, iritis, bacterial or fungal infections.
- •A history of papillary conjunctivitis that has interfered with contact lens wear.
结局指标
主要结局
Number of Eyes With Epithelial Edema - Slit Lamp Findings
时间窗: One Month
Epithelial edema on slit lamp grading scale 0 - 4 (0- No microcysts; normal transparency, 1 Trace - 1 to 20 microcysts; barely discernible local epithelial haziness, 2 Mild - 21 to 50 microcysts; faint but definite localized or generalized haziness, 3 Moderate - 51 to 100 microcysts; significant localized or generalized haziness, 4 Severe - \>100 microcysts; definite widespread epithelial cloudiness giving a dull glass appearance to the cornea, or numerous coalescing bullae)
Number of Eyes With Corneal Vascularization - Slit Lamp Findings
时间窗: One Month
Corneal Vascularization on slit lamp grading scale 0-4 (0 None: No vessel penetration, 1 Trace: \<1.00 mm vessel penetration, 2 Mild: \>1.00 mm to \<1.50 mm vessel penetration, 3 Moderate: \>1.50 mm to \<2.00 mm vessel penetration, 4 Severe: Vessel penetration \>2.00 mm) Depth: a. - Epithelial b. - Anterior Stromal c. - Mid/Posterior Stromal Location: N - Nasal T - Temporal I - Inferior S - Superior
Number of Eyes With Stromal Edema - Slit Lamp Findings
时间窗: One Month
Stromal edema on slit lamp grading scale 0-4 (0 None - No edema, 1 Trace - Just detectable clouding, 2 Mild - faint corneal striae, 3 Moderate - Pronounced corneal striae, 4 severe - folds in Descemet's membrane and ≥4 pronounced striae
Number of Eyes With Corneal Staining - Slit Lamp Findings
时间窗: One Month
Corneal Staining with fluorescent on slit lamp findings - Present / Absent
Number of Eyes With Limbal Hyperemia - Slit Lamp Findings
时间窗: One Month
Limbal Hyperemia on slit lamp grading scale 0-4 (0 None: No hyperemia, 1 Trace: Slight limbal hyperemia (mild segmented), 2 Mild: Mild limbal hyperemia (mild circumcorneal), 3 Moderate: Significant limbal hyperemia (marked segmented), 4 Severe: Severe limbal hyperemia (marked circumcorneal).
Number of Eyes With Bulbar Hyperemia - Slit Lamp Findings
时间窗: One Month
Bulbar Hyperemia on slit lamp grading scale 0-4 (0 None: No hyperemia, 1 Trace: Slight regional hyperemia, 2 Mild: Diffuse hyperemia, 3 Moderate: Marked regional or diffuse hyperemia, 4 Severe: Diffuse episcleral or scleral hyperemia)
Number of Eyes With Corneal Infiltrates - Slit Lamp Findings
时间窗: One Month
Number of Eyes With Corneal Infiltrates on slit lamp findings - Present / Absent
Number of Eyes With Palpebral Conjunctival Observations - Slit Lamp Findings
时间窗: Baseline
Number of Eyes With Palpebral Conjunctival Observations on slit lamp findings - Present / Absent
Number of Eyes With Palpebral Conjunctiva - Slit Lamp Findings
时间窗: One Month
Palpebral Conjunctival Observations on slit lamp findings - Present / Absent
Number of Eyes With Other Findings - Conjunctival Infection, Epidemic Keratoconjunctivitis, Corneal Ulcers, Iritis, Lens Adhesions and Recurrent Erosion - Slit Lamp Findings
时间窗: One Month
Clinical entities such as conjunctival infection, epidemic keratoconjunctivitis, corneal ulcers, iritis, lens adhesions and recurrent erosion on Slit lamp grading scale of 0-4 (0 None 1 Trace, 2 Mild, 3 Moderate, 4 Severe)
次要结局
- Number of Eyes With Visual Acuity for an Effective Visual Distance of 20 Feet(One Month)