The Effects of Blue of Blue Light-blocking Glasses Versus Standard Lenses on Contrast Sensitivity & Visual Fatigue in Myopic & Non-Myopic Adults
试验速览
- 阶段
- 不适用
- 状态
- 进行中（未招募）
- 入组人数
- 64
- 试验地点
- 1
- 主要终点
- Contrast Sensitivity
研究概览
简要总结
This study investigates the effects of blue light-blocking glasses compared to standard lenses on contrast sensitivity and visual fatigue in myopic and non-myopic adults. With the growing use of digital screens, blue light exposure has raised concerns due to potential eye strain, sleep disruption, and visual fatigue.
详细描述
While blue light-blocking lenses are marketed to address these issues, evidence of their efficacy, particularly for different refractive errors like myopia, remains inconclusive. Using a randomized controlled design, this study will assess both groups across specific visual tasks to measure contrast sensitivity and visual fatigue. Outcomes are evaluated using validated tools, including the Computer Vision Syndrome Questionnaire (CVS-Q) and Visual Fatigue Questionnaire (VFQ), with measurements taken at baseline, 2 weeks, and 4 weeks. Findings are expected to clarify the potential advantages of blue light-blocking glasses over standard lenses, aiding in evidence-based recommendations for adults with varying visual needs.
研究设计
- 研究类型
- Interventional
- 分配方式
- Randomized
- 干预模型
- Parallel
- 主要目的
- Health Services Research
- 盲法
- None
入排标准
- 年龄范围
- 18 Years 至 50 Years（Adult）
- 性别
- All
- 接受健康志愿者
- 是
入选标准
- •Adults aged 18-50 years.
- •Both myopic (with any degree of myopia) and non-myopic adults.
- •Participants who use computer screens for at least four hours per day.
- •Individuals currently using corrective lenses or willing to wear study-provided glasses during the experiment.
- •Individuals willing to complete the study protocol, which includes attending follow-up examinations and filling out visual fatigue questionnaires.
排除标准
- •A history of any serious vision-related condition (such as glaucoma, cataracts, or retinal problems).
- •Individuals who have already undergone refractive surgery (e.g., LASIK) or other types of eye surgery.
- •Systemic conditions affecting vision include diabetes, neurological problems, and any other ailment that may impair visual ability.
- •Taking drugs that are known to impair vision or produce visual tiredness (for example, certain antihistamines and antidepressants).
- •Pregnant women's visual performance may be affected by hormonal changes.
- •People with uncorrected vision difficulties cannot use the prescription lenses during study time.
- •Participants who are allergic or sensitive to lens materials.
研究组 & 干预措施
interventional group
干预措施: Blue Light-Blocking Glasses (Intervention Group) (Combination Product)
Control Group
干预措施: Standard Lenses (Control Group) (Diagnostic Test)
结局指标
主要结局
Contrast Sensitivity
时间窗: 12 Months
Measured using the Pelli-Robson chart to assess changes in visual acuity and sensitivity to contrast under different lens conditions.
Visual Fatigue
时间窗: 12 months
The Visual Fatigue Questionnaire (VFQ) was assessed to evaluate subjective experiences of eye strain and fatigue during visual tasks. Computer Vision Syndrome: Evaluated with the Computer Vision Syndrome Questionnaire (CVS-Q) to quantify symptoms associated with prolonged screen use, including dryness, discomfort, and eye strain."
次要结局
未报告次要终点
研究者
Muhammad Naveed Babur
Principal Investigator
Superior University