An observational study in Myopia and Refractive Errors, sponsored by Tianjin Eye Hospital. Completed at 1 site in China. Open to participants aged 18 Years to 50 Years. Per ClinicalTrials.gov, last updated 2023-01-13.
Sponsored by Tianjin Eye Hospital · Observational
A prospective, self-control, double-blind design was conducted in Tianjin. Two hundred participants were assigned to wear two kinds of spectacle glasses. To examine the effect of free-toroidal design and aspherical lens on the subjective visual quality among the myopic population.
A prospective, self-control, double-blind design was conducted in Tianjin. Two hundred participants were assigned to wear two kinds of spectacle glasses. To examine the effect of free-toroidal design and aspherical lens on the subjective visual quality among the myopic population. The subjective visual quality of clarity and comfort were determined using a questionnaire when first wearing the glasses and after 1week.
413 studies on the registry are indexed under Refractive Errors; 62 are open to participants now.
This study's enrollment of 200 is above the median of 150 across 107 observational studies indexed under Refractive Errors.
Browse Refractive Errors studies →Tianjin Eye Hospital is the lead sponsor of 49 studies on the registry; 15 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Healthy myopic people between 18 and 50 years of age
Exclusion Criteria:
Participants were asked to wear the new design lenses (the free-toroidal design lenses) for 1 week
The clarity score
The clarity score by a questionnaire,scores on the questionnaire range from 1 to 6, with higher scores being better
Time frame: baseline visit time
The comfort score
The comfort score by a questionnaire,scores on the questionnaire range from 1 to 6, with higher scores being better
Time frame: baseline visit time
Accuracy of foveal and peripheral visual acuity
Accuracy of foveal and peripheral visual acuity was assessed by the eye movement tracking device
Time frame: baseline visit time
Plan to share: No
This study is completed, as verified in Dec 2022. You cannot join it, but the record below documents what was studied.
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Tianjin Eye Hospital