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NOT YET RECRUITING
NCT04172935
NA
Productivity Study of Presbyopia Improvement in Textile Workers
Sponsor: Zhongshan Ophthalmic Center, Sun Yat-sen University
View on ClinicalTrials.gov
Summary
To establish, using a randomized, controlled design, the impact of near vision correction on the productivity of presbyopic textile workers in China, as measured by the change of monthly income.
Key Details
Gender
All
Age Range
40 Years - Any
Study Type
INTERVENTIONAL
Enrollment
136
Start Date
2019-12-13
Completion Date
2049-12-31
Last Updated
2019-12-11
Healthy Volunteers
Yes
Conditions
Interventions
DEVICE
Presbyopic Glasses/ Intervention Group
Immediate provision of a free pair of spherical presbyopic glasses to correct the worker's vision for optimal picking distance, astigmatism is corrected.
Locations (1)
Gaoming, Foshan, Guangdong
Foshan, Guangdong, China