title: [Comparative analyses between clinical refraction and automatic refraction obtained through a wave front sensor].
abstract: OBJECTIVE
  To evaluate and compare refractive errors obtained through clinical subjective and automatized wavefront refraction analyses in eyes under cycloplegia.
  
  
  METHODS
  Prospective study of 147 patients, 279 eyes, undergoing preoperative examination for refractive surgery. Clinical subjective refraction was performed first followed by wavefront refraction. Results on astigmatism obtained from refraction were decomposed in power vectors for statistical analyses. Data were first analyzed in one eye and then in both eyes.
  
  
  RESULTS
  The mean difference between clinical subjective refraction and automatized wavefront refraction on cycloplegic eyes was of -0.19 SD combined with -0.06 CD in the 15 degrees axis for data in one eye, and -0.17 SD combined with -0.05 CD in the 3 masculine axis for data in both eyes of the same patient.
  
  
  CONCLUSIONS
  In the present study clinical subjective refraction and automatized wavefront refraction under cycloplegia had similar numerical values.
authors: Universidade Federal de São Paulo, São Paulo, SP, Brasil. wfreitas@uol.com.br
authors: Wilson
authors: W
authors: de Freitas
authors: Luiz Alberto Soares
authors: LA
authors: Melo Júnior
authors: Paulo
authors: P
authors: Schor
authors: Mauro
authors: M
authors: Campos
mesh_terms: D000328:Adult; D001251:Astigmatism / Q000175:diagnosis; D001331:Automation; D003519:Cyclopentolate / Q000008:administration & dosage; D003941:Diagnostic Techniques, Ophthalmological / Q000295:instrumentation*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D009184:Mydriatics / Q000008:administration & dosage; D011446:Prospective Studies; D012029:Refraction, Ocular; D012030:Refractive Errors / Q000175:diagnosis*
chemical_list: D009184:Mydriatics; D003519:Cyclopentolate