by Hugh Bassett | Dec 10, 2025 | News
A RAAB in progress. Photograph: Aravind Eye Hospitals The Rapid Assessment of Avoidable Blindness (RAAB) has reached one million participants surveyed since 2000. RAAB is the main tool used for estimates of sight loss worldwide. It is a well-established...
by Hugh Bassett | Mar 4, 2025
Rapid Assessment of Avoidable Blindness Research The Rapid Assessment of Avoidable Blindness (RAAB) is a rapid survey methodology that has been used to complete over 380 surveys of vision impairment and blindness in more than 80 countries since 2000. RAAB assesses the...
by Hugh Bassett | Feb 13, 2021
Development of the 7th Generation of the Rapid Assessment of Avoidable Blindness (RAAB7) RAAB is a rapid survey methodology that has been used to complete over 300 surveys of vision impairment and blindness to date. RAAB7 is a multi-year project together with Peek...
by Hugh Bassett | Oct 26, 2020
The RAAB Diabetic Retinopathy Module It is well established that the prevalence of diabetes is rapidly increasing worldwide. However, there is little information on the prevalence of diabetic retinopathy (DR) in different parts of the world and particularly in low and...
by Hugh Bassett | Oct 26, 2020
Using RAAB to generate national prevalence estimates The first version of RAAB was developed in India in 1994 to provide management data for eye care at the district level, with populations ranging from 1 to 4 million people (average 2 million). In the nineties, India...
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