title: Effect of hospitalization on intraocular pressure in patients with normal-tension glaucoma.
abstract: OBJECTIVE
  To investigate the effect of hospitalization on intraocular pressure (IOP) in patients with normal-tension glaucoma (NTG).
  
  
  METHODS
  The study was conducted in 52 patients with a definite diagnosis of NTG. The correlation between IOP measured from 9.00 a.m. to 12.00 p.m. on an outpatient basis within 3 months each prior to and after hospitalization (ambulatory IOP) and IOP measured during the same time period after admission (inpatient IOP) was investigated in NTG patients.
  
  
  RESULTS
  Inpatient IOP (13.9 +/- 2.4 mm Hg) was significantly lower than ambulatory IOP (15.2 +/- 2.1 mm Hg), with a difference of 1.3 +/- 2.0 mm Hg (p < 0.01). The difference between inpatient IOP and ambulatory IOP was negatively correlated with inpatient IOP (r = 0.58, p < 0.01).
  
  
  CONCLUSIONS
  These results revealed that hospitalization decreased IOP in NTG patients, with the decrease being particularly pronounced in cases of low ambulatory IOP. Interpretation of inpatient IOP should be carefully included in glaucoma treatment.
authors.affiliation: Department of Ophthalmology, University of Yamanashi Faculty of Medicine, Tamaho, Japan. kenjik@res.yamanashi-med.ac.jp
authors.forename: Kenji
authors.initials: K
authors.lastname: Kashiwagi
authors.forename: Kyoko
authors.initials: K
authors.lastname: Kohno
authors.forename: Shigeo
authors.initials: S
authors.lastname: Tsukahara
mesh_terms: D000368:Aged; D002940:Circadian Rhythm; D005260:Female; D005901:Glaucoma / Q000503:physiopathology* / Q000628:therapy*; D006760:Hospitalization; D006801:Humans; D007297:Inpatients; D007429:Intraocular Pressure; D008297:Male; D008875:Middle Aged; D015999:Multivariate Analysis; D010045:Outpatients