Blindness,Visual Impairment, Refractive Error, Cataract, High Myopia, Aging
Conditions
Brief summary
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.
Interventions
DEVICEspectacles
dispending spectacles for uncorrected refractive error
Sponsors
Brien Holden Vision
Shanghai Eye Disease Prevention and Treatment Center
Study design
Allocation
NON_RANDOMIZED
Intervention model
SEQUENTIAL
Primary purpose
SCREENING
Masking
SINGLE (Outcomes Assessor)
Eligibility
Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
Yes
Inclusion criteria
* shanghai residents aged ≥18 years old
Exclusion criteria
* cognitive and/or mobility disorders; non-shanghai residents; younger than 18 years old.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| best-corrected visual acuity (BCVA) | 5 years | the prevalence of blindness and visual impairment |
| cataract surgery rate | 5 years | cataract surgery rate of Shanghai older people |
| cataract surgery coverage rate | 5 years | cataract surgery coverage rate of Shanghai cataract patients |
| visual impairment caused by high myopia | 5 years | observing the rate of visual impairment caused by high myopia |
Countries
China
Contacts
Primary ContactXun Xu, MD
Outcome results
None listed