Postural effects on intraocular pressure and ocular perfusion pressure in patients with non-arteritic anterior ischemic optic neuropathy.

ABSTRACT:

Background

To investigate postural effects on intraocular pressure (IOP) and ocular perfusion pressure (OPP) in patients with non-arteritic ischemic optic neuropathy (NAION).

Methods

IOP and blood pressure (BP) were measured in 20 patients with unilateral NAION 10 min after changing to each of the following positions sequentially: sitting, supine, right lateral decubitus position (LDP), supine, left LDP, and supine. IOP was measured using a rebound tonometer and OPP was calculated using formulas based on mean BP. The dependent LDP (DLDP) was defined as the position when the eye of interest (affected or unaffected eye) was placed on the dependent side in the LDP.

Results

IOPs were significantly higher (P = 0.020) and OPPs were significantly lower (P = 0.041) in the aff

SUBMITTER: Yang JM 

PROVIDER: S-EPMC5397825 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature