title: [The role of frequency doubling perimetry in the diagnosis of glaucoma: screening in employees of a public hospital in an urban area of São Paulo].
abstract: OBJECTIVE
  To study the prevalence of glaucoma in employees of a public hospital in São Paulo and to analyze the role of frequency doubling perimetry along with non-contact tonometry and direct ophthalmoscopy, in the screening for glaucoma.
  
  
  METHODS
  612 employees of the Central Hospital of the "Santa Casa de São Paulo" were evaluated from October 15 to 20, 2000; 438 were women and 174 men, with mean age of 45.05+/-7.7 years (range, 35 to 81 years); 437 were white, 104 mulatto, 43 black and 28 Asian. All examinations were done by 10 eye specialists with experience in glaucoma. All employees had both eyes examined, by means of frequency doubling perimetry (FDT), ophthalmoscopy (FO), and non-contact tonometry (TNC).
  
  
  RESULTS
  159 (25.98%) subjects presented with at least one abnormal testing; 5 (3.14%) had high IOP (TNC+); 13 (8.17%) presented suspicious disk (FO+); 110 (69.18%) presented abnormal FDT (FDP+); 8 (5.03%) TNC+ and FO+; 10 (6.28%) had TNC+ and FDT+; 9 (5.66%) presented FO+ and FDT+; 4 (2.51%) had TNC+, FO+ and FDT+; 12 (1.96%) individuals were diagnosed with glaucoma, four of whom (0.65%), with normal pressure glaucoma.
  
  
  CONCLUSIONS
  Frequency doubling perimetry was found to be an important step in the screening for glaucoma in the study. Of the 12 individuals that had the diagnosis of glaucoma, 5 (41.6%) would not have been diagnosed if they had not undergone frequency doubling perimetry.
authors.affiliation: Departamento de Oftalmologia, Faculdade de Ciências Médicas, Santa Casa de São Paulo.
authors.forename: Geraldo Vicente de
authors.initials: GV
authors.lastname: Almeida
authors.forename: Carmo
authors.initials: C
authors.lastname: Mandia Júnior
authors.forename: Maurício Della
authors.initials: MD
authors.lastname: Paolera
authors.forename: Niro
authors.initials: N
authors.lastname: Kasahara
authors.forename: Cristiano
authors.initials: C
authors.lastname: Caixeta-Umbelino
authors.forename: Paula Boturão de
authors.initials: PB
authors.lastname: Almeida
authors.forename: Ricardo Nunes
authors.initials: RN
authors.lastname: Eliezer
authors.forename: Renato Klingelfus
authors.initials: RK
authors.lastname: Pinheiro
authors.forename: Francisco Soares
authors.initials: FS
authors.lastname: Seixas
authors.forename: Mauricio
authors.initials: M
authors.lastname: Flank
authors.forename: Eduardo
authors.initials: E
authors.lastname: Villaça Filho
authors.forename: Ralph
authors.initials: R
authors.lastname: Cohen
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001938:Brazil / Q000453:epidemiology; D005260:Female; D005901:Glaucoma / Q000175:diagnosis* / Q000453:epidemiology; D006779:Hospitals, Public; D006801:Humans; D008297:Male; D008403:Mass Screening / Q000379:methods*; D008875:Middle Aged; D009887:Ophthalmoscopy; D010564:Personnel, Hospital; D015995:Prevalence; D012680:Sensitivity and Specificity; D014065:Tonometry, Ocular; D014505:Urban Population; D058609:Visual Field Tests / Q000379:methods*