Objective, computerized video-based rating of blepharospasm severity.

ABSTRACT:

Objective

To compare clinical rating scales of blepharospasm severity with involuntary eye closures measured automatically from patient videos with contemporary facial expression software.

Methods

We evaluated video recordings of a standardized clinical examination from 50 patients with blepharospasm in the Dystonia Coalition's Natural History and Biorepository study. Eye closures were measured on a frame-by-frame basis with software known as the Computer Expression Recognition Toolbox (CERT). The proportion of eye closure time was compared with 3 commonly used clinical rating scales: the Burke-Fahn-Marsden Dystonia Rating Scale, Global Dystonia Rating Scale, and Jankovic Rating Scale.

Results

CERT was reliably able to find the face, and its eye closure measure was co

SUBMITTER: Peterson DA 

PROVIDER: S-EPMC5109937 | biostudies-literature | 2016 Nov

REPOSITORIES: biostudies-literature