Quantification of photophobia in visual snow syndrome: A case-control study.

Eren, Ozan E; Ruscheweyh, Ruth; Straube, Andreas; Schankin, Christoph J. (2020). Quantification of photophobia in visual snow syndrome: A case-control study. Cephalalgia, 40(4), pp. 393-398. Sage Publications 10.1177/0333102419896780

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OBJECTIVE To quantify photophobia in visual snow syndrome (VSS), a debilitating migraine-associated visual disturbance manifesting with continuous "TV snow-like" flickering dots in the entire visual field and additional visual symptoms, such as photophobia. METHODS Photophobia was compared between 19 patients with VSS and 19 controls matched for age, sex, migraine and aura using the Leiden Visual Sensitivity Scale (L-VISS). RESULTS Patients with VSS had an increased L-VISS-score compared to matched controls [(22.2 ± 5.9 vs. 4.4 ± 4.8; ANOVA, factors VSS and comorbid migraine: Main effect for VSS (F = 100.70; p < 0.001), but not for migraine (F < 0.01; p = 1.00) or the interaction (F = 1.93; p = 0.16)]. An L-VISS-score of 14 identified VSS with a sensitivity and specificity of 95% (Receiver Operating Characteristic analysis, 0.986 ± 0.014, p ≤ 0.001). CONCLUSION Patients with VSS suffer continuously from photophobia at a level similar to chronic migraineurs during attacks. Although migraine and VSS share dysfunctional visual processing, patients with VSS might be more severely affected.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology

UniBE Contributor:

Schankin, Christoph Josef

Subjects:

600 Technology > 610 Medicine & health

ISSN:

0333-1024

Publisher:

Sage Publications

Language:

English

Submitter:

Chantal Kottler

Date Deposited:

30 Dec 2019 13:29

Last Modified:

09 Apr 2020 01:32

Publisher DOI:

10.1177/0333102419896780

PubMed ID:

31865761

Uncontrolled Keywords:

Visual sensitivity aura migraine visual processing

BORIS DOI:

10.7892/boris.137731

URI:

https://boris.unibe.ch/id/eprint/137731

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