Visual Impairment
Conditions
Brief summary
This study is a community trial that aims to establish and evaluate an mHealth screening and promotional tool for improving eye health in Iran. Sampling frame is a region in Tehran province with around 1 million sub-urban and rural inhabitants. investigators have obtained the list of health centers and their underserved population from the health authorities. In this region, health services are delivered through rural health houses, urban health posts and overhead health centers (221 units in total). investigators choose 27 units using cluster random sampling method with a probability proportional to size strategy, then investigators randomly assign them into three arms (explained below). The interventions will be at community level with the community as the unit of randomization. Arm 1- Training of the Primary Health Care (PHC) workers + PHC workers will be empowered with the mHealth tool to monitor, screen and promote community members Arm 2- PHC system will be strengthened with health promotion and screening programmes (same content as the mHealth tool) and PHC workers will deliver eye health messages and screening tests by the conventional facilities. Arm 3: Control group: only observation and registering of routine care
Interventions
DIAGNOSTIC_TESTScreening program including 2 consecutive tests
visual acuity test by Snellen chart, fundus imaging by fundus photography (Visucam Pro NM; Carl Zeiss Meditec AG, Germany)
DIAGNOSTIC_TESTScreening program with mobile health
Peek Acuity and Peek Retina installed on smart phones (Samsung Galaxy S8)
Sponsors
Shahid Beheshti University of Medical Sciences
Study design
Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
NONE
Eligibility
Sex/Gender
ALL
Age
50 Years to No maximum
Healthy volunteers
Yes
Inclusion criteria
* Inclusion criteria were living in one of the non-institutionalized urban or rural residential areas in one of the survey area, being resident in the same address for at least 6 months during the year before the enrolment, age 50 and over and Iranian nationality.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Eye care utilization: being visited/treated by an eye care professional | 6-12 months | Questionnaire based on closed questions |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Visual acuity | At baseline | Peek Acuity Software installed on smart phones (Samsung Galaxy S8, based on Logarithm Minimum Angle of Resolution, LogMAR). Visual acuity will be presented in range (minimum to maximum). Higher value of visual acuity represents the worsened outcome. |
| fundus imaging | At baseline | Peek Retina Software installed on smart phones (Samsung Galaxy S8; based on Logarithm Minimum Angle of Resolution, LogMAR). Higher value of visual acuity represents the worsened outcome. |
| Based on Logarithm Minimum Angle of Resolution, LogMAR. Visual acuity will be presented in range (minimum to maximum). Higher value of visual acuity represents the worsened outcome. | At baseline | visual acuity test by Snellen chart |
| fundus imaging by fundus photography (Visucam Pro NM; Carl Zeiss Meditec AG, Germany) | At baseline | fundus photography (Visucam Pro NM; Carl Zeiss Meditec AG, Germany) |
Countries
Iran
Outcome results
None listed