An interventional study of spectacles in Blindness,Visual Impairment, Refractive Error, Cataract, High Myopia, Aging, sponsored by Shanghai Eye Disease Prevention and Treatment Center. Recruiting at 1 site in China. Open to participants aged 18 Years to 100 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2022-05-24.
Sponsored by Shanghai Eye Disease Prevention and Treatment Center · Not applicable, Interventional, and Screening
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.
144 studies on the registry are indexed under Blindness; 33 are open to participants now.
This study's planned enrollment of 1,000,000 is above the median of 37 across 101 interventional studies indexed under Blindness.
Browse Blindness studies →Shanghai Eye Disease Prevention and Treatment Center is the lead sponsor of 66 studies on the registry; 30 are open to participants now.
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Exclusion Criteria:
Device: spectacles
dispending spectacles for uncorrected refractive error
best-corrected visual acuity (BCVA)
the prevalence of blindness and visual impairment
Time frame: 5 years
cataract surgery rate
cataract surgery rate of Shanghai older people
Time frame: 5 years
cataract surgery coverage rate
cataract surgery coverage rate of Shanghai cataract patients
Time frame: 5 years
visual impairment caused by high myopia
observing the rate of visual impairment caused by high myopia
Time frame: 5 years
Plan to share: Undecided
No publications or documents are linked to this record.
Ran from Jan 2016 to primary completion in Nov 2019, 46 months.
Of 36 interventional studies with no phase under Blindness, half reached primary completion within 57 months of starting (the median), counting those still running; a quarter within 19. This study's 46 months is below that.
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Shanghai Eye Disease Prevention and Treatment Center