title: Beta blocker eye drops related airway obstruction.
abstract: OBJECTIVE
  To assess the awareness among chest physicians, ophthalmologists and patients about use of eye drops with particular reference to beta blockers such as timolol as an agent of aggravating breathlessness in predisposed subjects.
  
  
  METHODS
  Cross-sectional study.
  
  
  METHODS
  A survey of 20 chest physicians, 20 ophthalmologists and 200 patients suffering from obstructive airway disease was conducted in 2 hospitals and a welfare center of Karachi from August to September 1997.
  
  
  RESULTS
  The results indicate that ophthalmologists showed more awareness than chest physicians regarding use of beta blocker eye drops by patients with obstructive airways disease (p = 0.004). Patient awareness was low as well.
  
  
  CONCLUSIONS
  There is a need to update doctors and educate general public about the side effects of beta blocker eye drops in patients with obstructive airway disease.
authors.affiliation: Aga Khan University Hospita, Karachi.
authors.forename: A
authors.initials: A
authors.lastname: Malik
authors.forename: A M
authors.initials: AM
authors.lastname: Memon
mesh_terms: D000293:Adolescent; D000319:Adrenergic beta-Antagonists / Q000008:administration & dosage / Q000009:adverse effects*; D000328:Adult; D000368:Aged; D000402:Airway Obstruction / Q000139:chemically induced*; D003430:Cross-Sectional Studies; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009883:Ophthalmic Solutions; D010348:Patient Care Team; D012307:Risk Factors; D013999:Timolol / Q000008:administration & dosage / Q000009:adverse effects*
chemical_list: D000319:Adrenergic beta-Antagonists; D009883:Ophthalmic Solutions; D013999:Timolol