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The Angioarchitecture of the Optic Nerve Head in Patients with Optic Disc Drusen
Julie Vahlgren1, Lasse Malmqvist1, Lea Lybæk Rueløkke1
1Department of Ophthalmology, Rigshospitalet, University of Copenhagen, Glostrup, Denmark.
Abstract:
The aim was to analyse the optic disc angioarchitecture in optic disc drusen (ODD) patients using computer-based fundus analysis in a case-control study. Compared with controls the ODD group had a significantly more centralised central retinal artery (CRA) emergence (p < 0.001) and primary CRA branching (p = 0.008), a higher number of CRA bifurcations (p = 0.02), a larger vertical optic disc diameter (p = 0.02) and a smaller cup/disc ratio (p < 0.001). The CRA emergence was largely within the nasal zone for both groups. The distinctive angioarchitecture of the optic disc in ODD patients can play a role in understanding the pathogenic cause of ODD.
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