Clinical comparison of the threshold-related and single-intensity strategies of the Humphrey Field Analyzer.
The threshold-related, eccentricity-compensated strategy was compared to the single-intensity strategy using a minimal test point distribution. Forty-two eyes known to be free of any visual field defect and 44 eyes with documented defects were tested with each screening strategy. The threshold-related, eccentricity-compensated strategy yielded a slightly poorer sensitivity (84.4%) and specificity (97.6%) than the single-intensity sensitivity (90.9%) and specificity (100%). An explanation for this decreased sensitivity is offered. The 40-point test was useful for some general screening. Recommendations are made for appropriate utilization and interpretation.
D003936:Diagnosis, Computer-Assisted; D005069:Evaluation Studies as Topic; D005901:Glaucoma / Q000175:diagnosis; D005902:Glaucoma, Open-Angle / Q000175:diagnosis; D006801:Humans; D008297:Male; D008875:Middle Aged; D014786:Vision Disorders / Q000175:diagnosis; D058609:Visual Field Tests / Q000379:methods; D014794:Visual Fields