Social & Preventive Medicine Disability certificate is given for poor vision if visual acuity is 4/60, in tune of visual impairment as a percentage A 1 B 0.75 C 0.3 D 0.4 💡 Explanation Disability certificate is given for poor vision if visual acuity is 4/60, in tune of visual impairment as a percentage ✓ Correct Answer: B. 0.75