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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT01704729
Other study ID # ZOC-WEAR-1
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date September 2012
Est. completion date April 1, 2016

Study information

Verified date March 2021
Source Sun Yat-sen University
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Phase I: Focus groups on different designs of adjustable glasses and standard glasses (August-September 2012) Phase II: Two-month randomized trial comparing four groups: (September 2012 - August 2013)


Description:

Phase I: Focus groups on different designs of adjustable glasses and standard glasses (August-September 2012) Phase II: Two-month randomized trial comparing four groups: self-refraction with adjustable glasses, receiving custom standard glasses; subjective refraction by an expert refractionist after cycloplegic automated refraction and receiving custom standard glasses; subjective refraction by a rural refractionist after cycloplegic automated refraction, receiving custom standard glasses; and subjective refraction by an expert refractionist after cycloplegic automated refraction receiving ready made glasses (September 2012 - August 2013)


Recruitment information / eligibility

Status Completed
Enrollment 2300
Est. completion date April 1, 2016
Est. primary completion date April 1, 2016
Accepts healthy volunteers No
Gender All
Age group 12 Years to 17 Years
Eligibility Inclusion Criteria: phase1: - aged 12-17 years - with <= -1.00D of myopic refractive error in each eye phase2: - 12-15 years old children from two locations in Guangdong Province - with uncorrected vision </= 6/12 in at least one eye thought to be due to refractive error (that is, correctable to at least 6/7.5 with cycloplegic subjective refraction by an optometrist) Exclusion Criteria: - those corrected VA can not up to 6/7.5 with cycloplegic subjective refraction by an optometrist - those with significant strabismus or vision abnormality (keratopathy, cataract, vitreous macular diseases ), or with vision deficiency ( amblyopia ) children are to be excluded. - Children developing acquired vision problems other than myopia

Study Design


Related Conditions & MeSH terms


Intervention

Procedure:
group1
Non-cycloplegic self-refraction +conventional glasses
group2
Cycloplegic subjective refraction by experienced optometrist +conventional glasses
group3
Cycloplegic subjective refraction by Rural Refractionist Program + conventional glasses
group4
Cycloplegic subjective refraction by an experienced optometrist +ready-made glasses

Locations

Country Name City State
China Zhongshan Ophthalmic Center Guangzhou Guangdong

Sponsors (1)

Lead Sponsor Collaborator
Sun Yat-sen University

Country where clinical trial is conducted

China, 

Outcome

Type Measure Description Time frame Safety issue
Other Breakage, damage and loss of spectacles 2 months
Primary Visual acuity with and without study refractive correction 2 months
Secondary Self-reported and Supplemental visual functioning 2 months
Secondary frequency of glasses-wear and the reason why the frequency is low 2 months
Secondary Accuracy of spectacles given to children 2 months
Secondary Value attached to the glasses and satisfaction to the glasses 2 months
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