Relationship between postural change of the intraocular pressure and XXXX in primary @entity1538 .

@entity1 @entity227 @entity1538
PURPOSE: To determine the relationship between the postural changes of the intraocular pressure and the @entity227 in @entity1 with primary @entity1538 . METHODS: Eleven normal subjects and 11 @entity1 with primary @entity1538 were studied. Intraocular pressure was measured in both the sitting and the supine positions. Visual fields were measured with automated perimetry. RESULTS: When @entity1 moved from a sitting to supine position, the intraocular pressure increased by an average of 3.1 +/- 0.4 mm Hg (mean +/- SEM) in normal subjects and 4.0 +/- 0.2 mm Hg in @entity1 with primary @entity1538 . There was a significant difference between the normal subjects and @entity1 with primary @entity1538 (P = 0.049). Intraocular pressure increased by 4.4 +/- 0.3 mm Hg (P = 0.02) in the worse eye for mean deviation and 3.6 +/- 0.3 mm Hg (P = 0.38) in the better eye for mean deviation. There was no significant difference in intraocular pressure in the sitting position between both groups. CONCLUSIONS: The greatest difference in intraocular pressure between the sitting and supine positions was observed in the worse eye of @entity1 with primary @entity1538 . This result suggests that damage to the optic nerve in primary @entity1538 might occur when @entity1 are asleep in the supine position.
