Computerized Visual Fields

Computerized measures of visual complexity.

Visual complexity influences people's perception of, preference for, and behaviour toward many classes of objects, from artworks to web pages. The ability to predict people's impression of the complexity of different kinds of visual stimuli holds, therefore, great potential for many domains, basic and applied. Here we use edge detection operations and several image metrics based on image compre...

Visual Analysis of Bioelectric Fields

Computerised evaluation of visual fields.

This report describes a method for conversion of visual fields from Goldmann perimeter charts to computer use, including area calculation, graphic display, and storage in the patient's data base. The computer program enables one to calculate and display several isoptres of each chart, as well as visual fields with scotomas or composed of islands. This method makes it possible to follow in an ac...

Visual fields in diabetic retinopathy.

Computerized expert system for evaluation of automated visual fields from the Ischemic Optic Neuropathy Decompression Trial: methods, baseline fields, and six-month longitudinal follow-up.

PURPOSE To validate a computerized expert system evaluating visual fields in a prospective clinical trial, the Ischemic Optic Neuropathy Decompression Trial (IONDT). To identify the pattern and within-pattern severity of field defects for study eyes at baseline and 6-month follow-up. DESIGN Humphrey visual field (HVF) change was used as the outcome measure for a prospective, randomized, multi...