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Measuring the accessibility of eye care in a country via density and distribution of eye health infrastructure was included in the Lancet Global Health Commission on Global Eye Health as one of seven ‘core’ eye health indicators. Footnote described an option to develop this further with GIS analysis.
First key objective of original study was intended to be a SSA-wide geocoded inventory of eye health care facilities (based on existing dataset ) with second objective of using AccesMod to estimate travel time to two different levels of eye care services. Likely research output was paper with regional-level summary of physical access and recommendation to report/monitor physical accessibility of services as part of improving eye health within UHC.
New approach is to first trial the analysis required using three countries (Kenya, Rwanda and Malawi) where data has already been submitted as an exploratory phase and, if possible, write a paper proposing standardised geographical indicators of physical access to eye care, modelled on a publication by Ebener et al..
National and subnational, e.g., purposively completed to align to RAAB7 survey sampling areas.
- Proportion of all-age population within XX travel time (hrs) to access any eye health clinician
- Proportion of population 50 years and older within XX travel time (hrs) to cataract surgical services
- Proportion of referral linkages between primary (non-cataract) and secondary (cataract) services below XX hours travel time
The input data required to measure the three proposed indicators include (1) the geographical coordinates (latitude, longitude) of [eye] health facilities, (2) spatial distribution of [all-age and 50+ populations] (target populations) in raster format, (3) road and hydrographic networks, (4) digital elevation model, (5) land cover, (6) administrative boundaries, and (7) estimated travel speed on and off the road network (travel scenarios)
Having step 1 data in three countries, we now require assistance with steps 2-7.
This specific project is not directly funded within RAAB7, there are no fixed deliverables. In October 2021, we aim to launch a new RAAB7 website showcasing survey data. By end of 2022, we hope to integrate facility mapping (+/- geographic indicators summary) onto spatial representation of survey areas.