The scourge of ethambutol-related toxic optic neuropathy in the Philippines

ABSTRACT

@#It has been more than five years since the Philippine Journal of Ophthalmology devoted an entire issue on neuro-ophthalmology, a subspecialty that is still considered minor in terms of research and clinical practice, with less than 10 active practitioners locally.1 That issue highlighted several neuro-ophthalmology papers submitted by local and international authors, as well as an editorial on optic neuritis and ethambutolrelated toxic optic neuropathy (ETON). The following years saw members of the Neuro-ophthalmology Club of the Philippines (NOCP) focus on ETON in particular, a local “scourge” that is fraught with unique issues and controversies