Open AccessRetrobulbar diameter of optic nerve in glaucoma
Author(s) -
Ivan Stefanović,
Ivan Marjanović,
G. Vlajković
Publication year - 2009
Publication title -
srpski arhiv za celokupno lekarstvo
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.135
H-Index - 17
eISSN - 2406-0895
pISSN - 0370-8179
DOI - 10.2298/sarh0904130s
Subject(s) - optic nerve , glaucoma , medicine , optic disc , intraocular pressure , ophthalmology , optic cup (embryology) , optic disk , anatomy , biochemistry , chemistry , gene , eye development , phenotype
The ultrasound diagnostics of the optic nerve includes the analysis of the optic nerve disc (PNO) and measuring of its retrobulbar diameter. With B-scan, by Schraeder's method, it is possible to measure very precisely the optic nerve, the pial diameter, the normal values for the pial diameter being 2.8-4.1 mm. In glaucoma, the disease that is most frequently associated with higher intraocular pressure, there comes the destruction of nerve fibres, which can be visualized as the excavation of the optic nerve disc.