Productivity Study of Presbyopia Improvement in Textile Workers

Status Not yet recruiting

Clinical Trial 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.

Clinical Trial Description

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. ;

Study Design

Related Conditions & MeSH terms

Presbyopia

Clinical Trial Details

NCT number	NCT04172935
Study type	Interventional
Source	Zhongshan Ophthalmic Center, Sun Yat-sen University
Contact	Yuting LI, Master
Phone	+86-020-87334687
Email	liyuting@gzzoc.com
Status	Not yet recruiting
Phase	N/A
Start date	December 13, 2019
Completion date	December 31, 2049

View Details

See also
Status	Clinical Trial	Phase
Completed	`NCT05326607` - Pilot Clinical Investigation of Adaptative Eyeglasses for the Correction of Presbyopia	N/A
Recruiting	`NCT06060041` - IC-8 Apthera IOL New Enrollment Post Approval Study
Completed	`NCT05495971` - Extended Depth of Focus Contact Lenses for Presbyopia	N/A
Completed	`NCT05464732` - Vivity IOL: Emmetropia Compared to Monovision.	N/A
Recruiting	`NCT06045299` - Evaluation of the Efficacy and Safety of LNZ101 and LNZ100 for the Presbyopia	Phase 3
Active, not recruiting	`NCT04151550` - Safety & Efficacy of the Laser Scleral Microporation Procedure (Philippines)	N/A
Not yet recruiting	`NCT05506553` - Comparison of Aspheric Toric Intraocular Lenses for Micro-monovision	N/A
Completed	`NCT02554396` - Evaluation of the Efficacy and Safety of PRX-100 in the Treatment of Early to Moderate Presbyopia	Phase 2
Completed	`NCT02214797` - Dispensing Study to Assess Visual Performance of Prototype Contact Lenses	N/A
Completed	`NCT02235831` - DAILIES® AquaComfort Plus® Multifocal (MF) - Comparative Assessment of Visual Performance	N/A
Enrolling by invitation	`NCT01443585` - Clinical Evaluation of a Progressive Addition Lens (PAL)	N/A
Completed	`NCT01591499` - Clinical Evaluation of Biofinity Multifocal Compared With Air Optix Aqua Multifocal and With PureVision Multifocal	N/A
Completed	`NCT04983589` - A Study to Assess Safety and Efficacy in Participants Age 40 to 55 With Presbyopia (Old Eye) Who Receive AGN-190584 in Both Eyes Twice Daily	Phase 3
Completed	`NCT02740010` - The Visual Performances of a Progressive Multifocal Intraocular Lens With Extended Depth of Focus
Recruiting	`NCT05796453` - Post Market Clinical Follow-up (PMCF) Study of Clareon Vivity & Clareon PanOptix	N/A
Completed	`NCT02516306` - A Study to Evaluate the Safety and Efficacy of EV06 Ophthalmic Solution in Improving Vision in Subjects With Presbyopia	Phase 1/Phase 2
Completed	`NCT05359380` - The Impact of Light Conditions on the Efficacy of Multifocal Intraocular Lens Implantation in Activities of Daily Living
Not yet recruiting	`NCT04522427` - Study of Presbyopia-correcting Intraocular Lenses in Eyes With Previous Corneal Refractive Surgery	N/A
Completed	`NCT03688425` - Comparison of Clinical Outcomes POD L GF vs POD F GF in Asian Eyes	N/A
Recruiting	`NCT06053463` - Evaluation of Soft Multifocal Lenses in Presbyopic Previous Contact Lens Wearers	N/A

Clinical trials are conducted in a series of steps, called phases - each phase is designed to answer a separate research question.

Phase 1: Researchers test a new drug or treatment in a small group of people for the first time to evaluate its safety, determine a safe dosage range, and identify side effects.
Phase 2: The drug or treatment is given to a larger group of people to see if it is effective and to further evaluate its safety.
Phase 3: The drug or treatment is given to large groups of people to confirm its effectiveness, monitor side effects, compare it to commonly used treatments, and collect information that will allow the drug or treatment to be used safely.
Phase 4: Studies are done after the drug or treatment has been marketed to gather information on the drug's effect in various populations and any side effects associated with long-term use.