Productivity Study of Presbyopia Improvement in Textile Workers
研究概览
详细说明
Sustainable development is considered to be a major development strategy to meet rapid economic and social development in China. China is one of the biggest manufacturing hubs in the world. With the rapid development of economy, the health of manufacturing workers is closely related to productivity. In some low-income developing countries, studies have focused on improving the health of manufacturing workers to improve productivity .Most of the studies focused on improving the nutritional intake of workers has a significant effect on improving work efficiency and productivity .
As the global aging is becoming an critical issue for both health and economics, the health of the working population over the age of 45 is of greater concern in low - and middle-income developing countries. China has a workforce of 980 million people (aged 15 to 60). Urban workers and blue-collar workers account for nearly 310 million. With the aging population increased, presbyopia is becoming more and more serious, and it also affects the labor group that needs to work in close proximity. Studies have proved that refractive correction for tea pickers with old vision can effectively improve the yield of tea pickers and increase personal income.Because Guangdong area textile industry is developed, textile worker population is large. Most front-line textile workers need to work in close proximity for a long time, and the problem of aging productivity is increasingly obvious. At present, no relevant studies have explored whether presbyopia affects the work efficiency of textile workers who work in close proximity.
In this study, a randomized controlled clinical study will be conducted on front-line textile workers with presbyopia to explore whether refractive correction can improve labor income and relieve symptoms of visual fatigue for textile workers aged 40 years or above who work in the front-line.
研究类型
注册 (预期的)
阶段
- 不适用
联系人和位置
学习联系方式
- 姓名:Yuting LI, Master
- 电话号码:+86-020-87334687
- 邮箱:liyuting@gzzoc.com
研究联系人备份
- 姓名:Qianyun Chen, Master
- 电话号码:+86-020-66610720
- 邮箱:chenqianyun@gzzoc.com
学习地点
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Guangdong
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Foshan、Guangdong、中国、510000
- Gaoming, Foshan, Guangdong
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接触:
- Yuting LI, Master
- 电话号码:+86-020-87334687
- 邮箱:ytdorothy@163.com
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接触:
- Qianyun Chen, bachelor
- 电话号码:+86-020-87334687
- 邮箱:torunchen@163.com
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参与标准
资格标准
适合学习的年龄
接受健康志愿者
有资格学习的性别
描述
Inclusion Criteria:
- Employee of E-square for 6 months;
- Aged >= 40 years;
- Quantifiable near visual task workers;
- Habitual near visual acuity of >= 0.8M (<=6/12) at 40cm in both eyes, correctable to <=0.5M (>=6/7.5);
- Near correction spherical equivalent refractive error >= +0.50D or astigmatism <-1.00D;
- Asthenopia symptoms reported ( Asthenopia questionnaire score >= 16) Ability to give informed consent
Exclusion Criteria:
- Ocular surgery done in the past 3 months;
- Eye disease detected on baseline eye exam
- Current ownership of near correction capable of improving near visual acuity to <= 0.8M (>= 6/12) in either eye
- Unlikely to complete follow-up due to unsatisfactory work performance, plans to move out of the area, etc.
学习计划
研究是如何设计的?
设计细节
- 主要用途:预防
- 分配:随机化
- 介入模型:并行分配
- 屏蔽:无(打开标签)
武器和干预
参与者组/臂 |
干预/治疗 |
---|---|
实验性的:Presbyopic Glasses/ Intervention Group
Immediate provision of a free pair of spherical presbyopic glasses to correct the worker's vision for optimal working distance as measured before intervention.
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Immediate provision of a free pair of spherical presbyopic glasses to correct the worker's vision for optimal picking distance, astigmatism is corrected.
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无干预:Control Group
Will be deferred to receive spectacles as above, after the 4 weeks evaluation period.
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研究衡量的是什么?
主要结果指标
结果测量 |
措施说明 |
大体时间 |
---|---|---|
The rate of income change of textile workers
大体时间:4 weeks
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The rate of income change over baseline.
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4 weeks
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次要结果测量
结果测量 |
措施说明 |
大体时间 |
---|---|---|
The quality of vision function
大体时间:4 weeks
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Secondary outcome will be the quality of vision function in both groups.National Eye Institute Visual Function Questionnaire-25 (NEI-VFQ-25 ) questionnaire will be used to measure the quality of vision function.For the NEI-VFQ-25, a composite score (25 items) and near activities sub score (two items) were created on 0-100 scales.
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4 weeks
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Percentage of glasses wear in intervention group, as well as the purchase and use of glasses in control group.
大体时间:4 weeks
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Independent compliance observation of wear of the study spectacles in the intervention group, self-reported purchase and use of glasses in the control group will be recorded.
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4 weeks
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合作者和调查者
调查人员
- 研究主任:Yangfa Zeng, Master、Zhongshan Ophthalmic Center, Sun Yat-sen University
研究记录日期
研究主要日期
学习开始 (预期的)
初级完成 (预期的)
研究完成 (预期的)
研究注册日期
首次提交
首先提交符合 QC 标准的
首次发布 (实际的)
研究记录更新
最后更新发布 (实际的)
上次提交的符合 QC 标准的更新
最后验证
更多信息
与本研究相关的术语
计划个人参与者数据 (IPD)
计划共享个人参与者数据 (IPD)?
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