Ethambutol is associated with

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.