Ethambutol is associated with: (A) Red-green colour blindness, (B) Red-blue colour blindness, (C) Blue-green colour blindness, (D) Yellow-green colour blindness
Answer is A. Ethambutol may cause ‘optic neuritis’ (ocular toxicity): 463 National Health Programmes, Policies and Legislations in IndiaReview of Preventive and Social Medicine
It may lead to ‘red-green color blindness’
Patients may thus develop ‘blue vision’
Thus it is contraindicated in children < 6 years age, as they may not be able to report any deterioration of color vision.