title: The rare ethambutol-induced optic neuropathy: A case-report and literature review.
abstract: BACKGROUND
  Ethambutol-induced optic neuropathy (EON) is a well-known complication that results from the use of ethambutol. The ocular manifestations of EON include painless loss of central vision and cecocentral scotomas in the visual field.
  
  
  METHODS
  A 75-year-old Chinese Han man suffered from this rare ocular disorder because he took ethambutol for about 8 months.
  
  
  METHODS
  He was diagnosed as EON based on series of ophthalmic examinations performed.
  
  
  METHODS
  Since he has stopped taking this drug for 3 months, we just offered some neurotrophic agents to him.
  
  
  RESULTS
  One month later, he came back for return visit. The ophthalmic examinations indicated recovery of the visual function very well.
  
  
  CONCLUSIONS
  The EON is a reversible optic neuropathy if the ocular toxicity is monitored closely among the tuberculosis patients that take ethambutol.
authors.affiliation: aDepartment of Ophthalmology, Jiaxing Traditional Chinese Medicine Hospital Affiliated to Zhejiang Chinese Medical University, Nanhu District, Jiaxing City, Zhejiang Province bDepartment of Ophthalmology, Beijing Tsinghua Changgung Hospital, Tsinghua University, Changping District, Beijing, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Song
authors.forename: Shancheng
authors.initials: S
authors.lastname: Si
mesh_terms: D000368:Aged; D000995:Antitubercular Agents / Q000009:adverse effects*; D004977:Ethambutol / Q000009:adverse effects*; D006801:Humans; D008297:Male; D009901:Optic Nerve Diseases / Q000139:chemically induced* / Q000175:diagnosis / Q000188:drug therapy; D011379:Prognosis
chemical_list: D000995:Antitubercular Agents; D004977:Ethambutol