title: Changes in intraocular pressure due to cycloplegia.
abstract: OBJECTIVE
  We studied intraocular pressure (IOP) in a group of healthy myopic subjects before and after administration of chlorhydrate cyclopentolate 1%.
  
  
  METHODS
  We measured the IOP before administration and at 15, 30, 45, 60, and 300 minutes and 24 hours after administration.
  
  
  RESULTS
  The rise in IOP at 15 and 300 minutes was not significant (P > 0.05), while the rise at 30, 45, and 60 minutes was significant (P < 0.05). The increase reached its maximum at 45 minutes. At 300 minutes, the increase was almost completely overcome and was not significant. At 24 hours, the pressure had returned to initial values.
  
  
  CONCLUSIONS
  Cyclopentolate represents a valuable aid in performing retinoscopy in healthy subjects who have an anterior chamber with adequate depth and an open angle.
authors.affiliation: Department of Optics, Faculty of Sciences, University of Granada, Spain.
authors.forename: J
authors.initials: J
authors.lastname: Velasco Cabrera
authors.forename: P
authors.initials: P
authors.lastname: Eiroa Mozos
authors.forename: J
authors.initials: J
authors.lastname: Garcia Sanchez
authors.forename: F
authors.initials: F
authors.lastname: Bermudez Rodriguez
mesh_terms: D000293:Adolescent; D000328:Adult; D003519:Cyclopentolate / Q000494:pharmacology*; D005260:Female; D006801:Humans; D007429:Intraocular Pressure / Q000187:drug effects*; D008297:Male; D009184:Mydriatics / Q000494:pharmacology*; D009216:Myopia / Q000503:physiopathology*; D013997:Time Factors; D014065:Tonometry, Ocular
chemical_list: D009184:Mydriatics; D003519:Cyclopentolate