As shown in Table 1, some 71 countries have conducted a population survey since 2004 (when the RAAB survey methodology was introduced) that identifies the prevalence and causes of blindness and visual impairment. Some of these studies were at a national level and others more localised; the full details can be found here. The majority of the studies are RAAB surveys and are listed on the RAAB repository. Some countries have conducted several studies.
The map ‘slideshow’ below includes a global map of the countries that have prevalence study data available. A good number of low- and middle-income countries have been surveyed and this may be attributed to donor support for data collection in the poorer countries. By contrast, very little data is available for High-Income countries and those in the Central Europe, Eastern Europe and Central Asia Super Region.
Updated on 12th Oct 2017
Recently, tools have been developed to assess the capacity of national eye health systems. Such assessments are invaluable for identifying the strengths and weaknesses of the system and to help prioritise future plans. 32 countries were identified as having completed either an Eye Health Systems Assessment or the more recently available WHO Eye Care Service Assessment. Again, these are shown in the map ‘slideshow’ above.
of 197 countries have conducted a Population Survey since 2004
of 197 countries have a National Prevention of Blindness Committee
of 197 countries have a National Eye Health Co-ordinator
of 197 countries have completed an Eye Health Systems Assessment or WHO Eye Care Service Assessment
of 197 countries have a current National Eye Health Plan
Co-ordinators & Committees
One hundred and six countries were identified as having a national eye health co-ordinator responsible for the prevention of blindness and visual impairment, while 64 countries have a national prevention of blindness committee and 60 countries were identified as having a current national plan for eye health; these are all represented in the map ‘slideshow’ above. Given there are 197 countries, these may be considered relatively low percentages. However, it should not be assumed that the remaining countries are a ‘No’ in terms of these three indicators – as in many cases we were not able to gather the information from the country. Despite this limitation in our data, it is true to say that many countries do not have the planning mechanisms in place to adequately address and prioritise the issue of better eye health and the elimination of avoidable blindness and visual impairment that the GAP calls for.
Many countries do not have the planning mechanisms in place to adequately address and prioritise the issue of better eye health and the elimination of avoidable blindness and visual impairment that the GAP calls for
The data analysis in this online version of the IAPB Vision Atlas represents the most recent available data as of October 2017. Data will be analysed regularly and updated here at regular intervals.
We have also avoided trying to ‘over analyse’ the available data given the limitations of some of the data received. We welcome input to make our data better.