Social & Preventive Medicine To facilitate the screening of visual-acuity, WHO defines blindness as counting fingers at a distance of: September 2006 and September 2010 A 1 meter B 3 meters C 6 meters D 9 meters 💡 Explanation To facilitate the screening of visual-acuity, WHO defines blindness as counting fingers at a distance of: September 2006 and September 2010 ✓ Correct Answer: B. 3 meters