title: [Enlarged blind spot and reduced visual evoked potentials due to melanocytoma of the optic disc].
abstract: A 59-year-old male patient presented with clinical characteristics of a melanocytoma of the optic disc in the right eye. Using functional tests, such as visual acuity, visual fields, visual evoked potentials (VEP) and imaging procedures (e.g., fundus photography and spectral domain optical coherence tomography) the findings were documented. Best corrected visual acuity was 25/20 in both eyes. Ophthalmoscopy showed a slightly prominent and pigmented tumor in the upper third of the optic disc. Comparing both eyes, an enlarged blind spot and a reduction of VEP were detectable.
authors.affiliation: Universitätsklinik und Poliklinik für Augenheilkunde, Universitätsklinikum Halle (Saale), Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle (Saale), Deutschland. jens.heichel@uk-halle.de.
authors.forename: J
authors.initials: J
authors.lastname: Heichel
authors.affiliation: Universitätsklinik und Poliklinik für Augenheilkunde, Universitätsklinikum Halle (Saale), Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle (Saale), Deutschland.
authors.forename: K
authors.initials: K
authors.lastname: Slugocka-Jeziak
authors.affiliation: Universitätsklinik und Poliklinik für Augenheilkunde, Universitätsklinikum Halle (Saale), Martin-Luther-Universität Halle-Wittenberg, Ernst-Grube-Str. 40, 06120, Halle (Saale), Deutschland.
authors.forename: E
authors.initials: E
authors.lastname: Kühn
mesh_terms: D003937:Diagnosis, Differential; D005074:Evoked Potentials, Visual; D006801:Humans; D008297:Male; D008875:Middle Aged; D009508:Nevus, Pigmented / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D009898:Optic Disk / Q000473:pathology*; D019574:Optic Nerve Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000473:pathology; D014786:Vision Disorders / Q000175:diagnosis* / Q000209:etiology / Q000473:pathology; D058609:Visual Field Tests; D014794:Visual Fields
keywords: Melanocytoma; Nervus opticus; Optical coherence tomography; Perimetry; Visual evoked potentials