Journal of Clinical and Experimental Ophthalmology
Open Access
ISSN: 2155-9570
ISSN: 2155-9570
Jaroslav Tintěra
Czech Republic
Research Article
Changes in the Visual Cortex in Patients with Normotensive Glaucoma
Author(s): Jan Lešták, Jaroslav Tintěra, Lukáš Ettler, Elena Nutterová and Pavel RozsívalJan Lešták, Jaroslav Tintěra, Lukáš Ettler, Elena Nutterová and Pavel Rozsíval
Objective: To show whether there is a correlation between visual field changes in normotensive glaucoma and changes in functional magnetic resonance of the visual cortex.Methods and subjects: The authors examined eight normotensive glaucoma patients (stage initial to medium) by means of functional magnetic resonance imaging (fMRI). Measurements were performed on a Philips Achieva 3T TX MR system using the BOLD method. For visual stimulation, a black and white checkerboard with an alternating negativity frequency of 2 Hz was used. Each measurement consisted of a block scheme with 5 intervals of an active phase lasting 30s followed by 5 resting intervals of equal duration. The measured data were processed on SPM software.A comprehensive ophthalmological examination was supplemented by an examination of the visual field by means of a fast thr.. View More»
DOI:
10.4172/2155-9570.S4-008