Purchase this article with an account.
M. Hatanaka, L. Sakata, R. Garcia, L. Trancoso, M. Treveza, R.M. Vessani, R. Susanna; Intraocular Pressure Variability in Sitting and Supine Position and After Water Drinking Test in Primary Open Angle Glaucoma . Invest. Ophthalmol. Vis. Sci. 2005;46(13):4828.
Download citation file:
© ARVO (1962-2015); The Authors (2016-present)
Purpose: To evaluate the intra–ocular pressure (IOP) variability by moving the body from sitting to supine position and by water drinking test (WDT) in primary open angle glaucoma (POAG) and normal subjects. Methods: Cross sectional observational analysis of 31 eyes of 31 POAG and 14 eyes of 14 normal subjects. All POAG subjects were under clinical therapy to reduce IOP. Patients were submitted to a modified diurnal tensional curve (mDTC) followed by Perkins tonometry at the sitting and supine position, and then a WDT was performed in each patient. Results: TThe mean mDTC IOP in normal and POAG subjects was 15.49 ± 3.53 mmHg and 15.56 ± 3.25 mmHg respectively (p = 0.95). When the subjects moved to the supine position, IOP increased 1.36 ± 1.34 mmHg and 2.84 ± 2.21 mmHg respectively (p=0.02). After WDT, IOP fluctuation was 2.71±0.99 mmHg in the normal group versus 4.13±2.33 mmHg in POAG patients (p=0.007). Mean IOP increase after water ingestion was higher in comparison to IOP increase after moving from sitting to supine position (p=0.02). Conclusions: POAG eyes demonstrated a significant IOP increase when assumed the supine position and after WDT. The IOP variability detected by the WDT was significantly higher than the IOP increase after moving the body from sitting to supine position.
This PDF is available to Subscribers Only