PURPOSE To measure histomorphometrically the location of the peripapillary arterial circle of Zinn-Haller (ZHAC) and assess its associations with axial length. METHODS Using a light microscope, we measured the distance from the ZHAC to the peripapillary ring (optic disc border), the merging point of the dura mater with the posterior sclera ("dura-sclera point"), and the inner scleral surface....

~~Tocompanthemearu~ementroftheshapeof~neuroraioalrimbehraenthe HeidelbergRetlnaTmnographand pho@raphicevahmtm Metho& The optic discs of45 eyes of23 nnmal subjects and 51 aye? of29 patients with open-angle &umnm mre exarmned using the Heidelberg Retiam Tomograph (HRT) Wtware nrsmn I.1 1) and sta”dawJized I5 +w color 6terea qtic disc photographs. FM the BRT mearunments, the contour line dthe opti...

~~Tocompanthemearu~ementroftheshapeof~neuroraioalrimbehraenthe HeidelbergRetlnaTmnographand pho@raphicevahmtm Metho& The optic discs of45 eyes of23 nnmal subjects and 51 aye? of29 patients with open-angle &umnm mre exarmned using the Heidelberg Retiam Tomograph (HRT) Wtware nrsmn I.1 1) and sta”dawJized I5 +w color 6terea qtic disc photographs. FM the BRT mearunments, the contour line dthe opti...

~~Tocompanthemearu~ementroftheshapeof~neuroraioalrimbehraenthe HeidelbergRetlnaTmnographand pho@raphicevahmtm Metho& The optic discs of45 eyes of23 nnmal subjects and 51 aye? of29 patients with open-angle &umnm mre exarmned using the Heidelberg Retiam Tomograph (HRT) Wtware nrsmn I.1 1) and sta”dawJized I5 +w color 6terea qtic disc photographs. FM the BRT mearunments, the contour line dthe opti...

~~Tocompanthemearu~ementroftheshapeof~neuroraioalrimbehraenthe HeidelbergRetlnaTmnographand pho@raphicevahmtm Metho& The optic discs of45 eyes of23 nnmal subjects and 51 aye? of29 patients with open-angle &umnm mre exarmned using the Heidelberg Retiam Tomograph (HRT) Wtware nrsmn I.1 1) and sta”dawJized I5 +w color 6terea qtic disc photographs. FM the BRT mearunments, the contour line dthe opti...

PURPOSE To describe optic disc variables assessed by evaluation of clinical optic disc photographs and to compare sensitivity and specificity of these optic disc parameters in identifying patients with ocular hypertension who have nerve fiber layer defects and normal visual fields and patients with visual field defects. METHODS The study included 500 normal subjects, 132 patients with ocular ...

AIMS/BACKGROUND It has been reported that the number of optic nerve fibres decrease with age, and the cup/disc (C/D) ratio increases as the optic disc size increases. Consequently, the normal value of the optic disc variables measured by an optic disc analyser may change according to the optic disc size or age. The effect of individual variations in optic disc size or age on interpretation of o...

Optic disc pit and optic nerve coloboma are examples of congenital optic disc abnormalities. Although optic nerve coloboma can be inherited in an autosomal dominant fashion, no conclusive link has been found in the case of optic disc pit as an autosomal dominant disease. We describe two cases: a daughter with an optic disc pit complicated by maculopathy and her mother with a congenitally abnorm...

PURPOSE The lamina cribrosa, as the main structural element of the optic nerve head, forms a pressure barrier between the intraocular space and the retrobulbar space. The function as a pressure barrier may have importance for the pathogenesis of ocular diseases related to intraocular pressure and/or cerebrospinal fluid (CSF) pressure, such as the glaucomas. The purpose of the present study was ...

A 15‐year‐old girl complaining of reduced visual acuity (VA) in both eyes since 2 months before was referred to our retina service in January 2011. Best corrected visual acuity was 5/10 in both eyes. External eye examination was normal. Biomicroscopy revealed +1 anterior chamber cells and +1 old vitreous cells bilaterally. Other anterior segment structures and intraocular pressure (IOP) were no...