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Influence of Cilioretinal Arteries on Neuroretinal Rim and Parapapillary Atrophy in Glaucoma

¹From the Department of Ophthalmology, Friedrich-Alexander Universität Erlangen-Nürnberg, Erlangen, Germany; and the ²Department of Ophthalmology, Medical Faculty Mannheim, Ruprechts-Karls Universität Heidelberg, Mannheim, Germany.

PURPOSE. The pattern of neuroretinal rim loss and increase in the area of parapapillary atrophy in glaucoma depend on the localization of the central retinal vessel trunk in the lamina cribrosa. The purpose of the present study was to determine whether, in a similar way, the pattern of rim loss and progression of parapapillary atrophy are influenced by the presence and position of cilioretinal arteries.

METHODS. Color stereo optic disc photographs (15°) for morphometric evaluation of the optic nerve head were used to compare the appearance of the optic disc in 41 patients exhibiting unilateral or bilateral cilioretinal arteries in the temporal horizontal disc region with the optic disc morphology of 127 patients without cilioretinal arteries. The areas of the neuroretinal rim and alpha and beta zones of parapapillary atrophy were measured in the total disc and in four disc sectors.

RESULTS. Eyes with and eyes without cilioretinal arteries did not differ significantly in the areas of neuroretinal rim and alpha and beta zones of parapapillary atrophy, when measured in the whole optic disc and in the four disc sectors separately; in ratios of the temporal horizontal area to total area of rim and parapapillary atrophy; and in the ratio of temporal horizontal rim area-to-nasal rim area, neither in an interindividual comparison nor in an intraindividual intereye comparison.

CONCLUSIONS. In contrast to the position of the central retinal vessel trunk, presence and position of cilioretinal arteries do not markedly influence the pattern of neuroretinal rim loss and progression of parapapillary atrophy in glaucoma.

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				J. B. Jonas, E. Berenshtein, and L. Holbach Anatomic Relationship between Lamina Cribrosa, Intraocular Space, and Cerebrospinal Fluid Space Invest. Ophthalmol. Vis. Sci., December 1, 2003; 44(12): 5189 - 5195. [Abstract] [Full Text] [PDF]