Journal of Clinical and Experimental Ophthalmology
Open Access
ISSN: 2155-9570
ISSN: 2155-9570
Zuzana Svatá
JL Clinic,
V Hůrkách 1296/10, Prague
Czech Republic
Research Article
Changes in the Visual Cortex in Patients with High-Tension Glaucoma
Author(s): Jan Lešták, Jaroslav Tintěra, Martin Kynčl, Zuzana Svatá, Jirí Obenberger and Andrea SaifrtováJan Lešták, Jaroslav Tintěra, Martin Kynčl, Zuzana Svatá, Jirí Obenberger and Andrea Saifrtová
Objective: To verify whether there is a correlation between visual field changes in high-tension glaucoma and changes in functional magnetic resonance of the visual cortex.Methods and patients: The authors examined nine patients with high-tension glaucoma in different stages by functional magnetic resonance (fMRI). The measurements were carried out on the Philips Achieva 3T TX MR system using the BOLD method. Optical stimulation was provided by a black and white checkerboard alternated with its negative image with a frequency of 2 Hz. Each measurement consisted of a sequence of five 30-second active phase periods and five resting periods of the same length. The obtained data were processed using SPM8 software.The complex ophthalmological examination was supplemented by the visual field in the rapid threshold program mode. .. View More»
DOI:
10.4172/2155-9570.S4-002