A district health officer is planning a population-based survey to estimate the prevalence of blindness in a rural district. He wants to use the WHO-recommended rapid assessment methodology that is specifically designed for quick estimation of the prevalence of blindness and its causes in populations aged 50 years and above. This methodology is:
- A Rapid Assessment of Avoidable Blindness (RAAB) ✓
- B Rapid Assessment of Refractive Errors (RARE)
- C Rapid Assessment of Visual Impairment (RAVI)
- D Rapid Assessment of Cataract Surgical Services (RACSS)
Correct answer: A. Rapid Assessment of Avoidable Blindness (RAAB)
Explanation
RAAB is the WHO-recommended rapid assessment tool specifically designed for estimating the prevalence and causes of blindness in populations aged 50 years and above. RARE focuses on refractive errors, while RACSS evaluates cataract surgical services rather than prevalence. RAVI is not a standard WHO methodology. RAAB surveys are widely used in India for district-level blindness estimation.
Reference: Park's Textbook of Preventive and Social Medicine, 26th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.