title: [Comparative study between diurnal intraocular pressure curve and the association of ambulatory intraocular pressure curve with the water-drinking test in open angle glaucoma, normal tension glaucoma and normal eyes].
abstract: OBJECTIVE
  To evaluate and correlate the peaks and the fluctuation of intraocular pressure seen in the association of the ambulatory intraocular pressure curve with the water-drinking test versus the peaks and the fluctuation seen in the daily intraocular pressure curve.
  
  
  METHODS
  The sample was as follows: 77 eyes belonging to 77 patients who were divided into three groups composed of 31 eyes belonging to 31 patients with primary open-angle glaucoma, 26 eyes belonging to 26 patients with normal tension glaucoma and 20 normal eyes belonging to 20 individuals.
  
  
  RESULTS
  A significant correlation could be observed between the pressure peaks collected from the daily intraocular pressure curve and the pressure peaks seen in the ambulatory intraocular pressure curve, on the water-drinking test, as well as in the association of the ambulatory intraocular pressure curve with the water-drinking test. The procedure which showed the highest rate of correlation between the pressure peaks and the peaks of the daily intraocular pressure curve was the ambulatory intraocular pressure curve (r2= 0.81). However, no statistically significant difference was found between the pressure peaks and the correlation coefficients observed in the other methods. The correlation between the fluctuation of intraocular pressure obtained in the association of the ambulatory intraocular pressure curve with the water-drinking test and the fluctuation of the pressure seen in the daily intraocular pressure curve showed a slight association (r2= 0.21).
  
  
  CONCLUSIONS
  The association between ambulatory intraocular pressure curve and water-drinking test was not efficient to estimate peaks and the fluctuation of daily intraocular pressure curve. The ambulatory intraocular pressure curve and the water-drinking test must be analyzed separately. When predicting the peak and the fluctuation of the daily intraocular pressure curve, the ambulatory intraocular pressure curve was the most efficient procedure.
authors.affiliation: Universidade Gama Filho, Brasil. serhme@terra.com.br
authors.forename: Sergio Henrique Sampaio
authors.initials: SH
authors.lastname: Meirelles
authors.forename: Riuitiro
authors.initials: R
authors.lastname: Yamane
authors.forename: Riani Morelo
authors.initials: RM
authors.lastname: Alvares
authors.forename: Priscilla Barbuto
authors.initials: PB
authors.lastname: Botelho
authors.forename: Fábio Barreto
authors.initials: FB
authors.lastname: Morais
authors.forename: Pedro Bertino
authors.initials: PB
authors.lastname: Moreira
authors.forename: Adalmir Morterá
authors.initials: AM
authors.lastname: Dantas
authors.forename: Haroldo Vieira
authors.initials: HV
authors.lastname: de Moraes Júnior
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D003941:Diagnostic Techniques, Ophthalmological; D018450:Disease Progression; D004326:Drinking; D005260:Female; D005902:Glaucoma, Open-Angle / Q000175:diagnosis* / Q000503:physiopathology; D006801:Humans; D007429:Intraocular Pressure / Q000502:physiology*; D008297:Male; D008875:Middle Aged; D015203:Reproducibility of Results; D013997:Time Factors; D014065:Tonometry, Ocular; D014867:Water
chemical_list: D014867:Water