About this trial
Blindness and visual impairment severely impact the visual health and life quality of people, particularly the 2.566 million senior citizens aged at 65 and above in Shanghai. The main reason is uncorrected refractive error, of which, 62.1% can be solved through refractive correction. For this reason, the uncorrected refractive errors of 154,000 senior citizens in Shanghai can be taken as a priority among the public health issues to prevent blindness. Now, with the aim to reduce the prevalence rate of blindness and visual impairment, it is planned to establish a public health service mechanism in terms of refractive error screening and correction for the elderly by relying on Shanghai's three-level (city-district-community) eye diseases prevention network, using proper refractive correction technology, and moving related services forward to communities in order to screen, identity, and correct blindness and visual impairment caused by refractive errors as early as possible.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
shanghai residents aged ≥18 years old
Disqualifiers
cognitive and/or mobility disorders; non-shanghai residents; younger than 18 years old.
Trial design
Sequential
Treatments tested in this trial
spectacles
Devicedispending spectacles for uncorrected refractive error
Treatment groups
Trial outcomes
Primary outcomes
best-corrected visual acuity (BCVA)
the prevalence of blindness and visual impairment
cataract surgery rate
cataract surgery rate of Shanghai older people
cataract surgery coverage rate
cataract surgery coverage rate of Shanghai cataract patients
visual impairment caused by high myopia
observing the rate of visual impairment caused by high myopia
Sponsors and contacts
Click on the lead sponsor to view all of their trials.
Shanghai Eye Disease Prevention and Treatment Center
Lead sponsor
Brien Holden Vision
Collaborator