TY - JOUR
T1 - Response Properties of Normal Observers and Patients During Automated Perimetry
AU - Nelson Quigg, Jacqueline M.
AU - Johnson, Chris A.
AU - Twelker, J. Daniel
PY - 1989/11
Y1 - 1989/11
N2 - Automated perimetry was performed on both eyes of 54 normal subjects, 36 patients with ocular hypertension and normal visual fields, and 20 patients with early glaucomatous visual field loss to evaluate false-positive errors, false-negative errors, fixation losses, consistency of double determinations, and testing time. For all subject groups and response measures, large interindividual variation was found. No meaningful age-related changes were obtained for false-negative errors, false-positive errors, fixation losses, or consistency of double determinations. Contrary to earlier reports, we found a low number of normal subjects and patients exceeding the 33% false-positive and false-negative limits established for the Humphrey Field Analyzer. A large number of normal subjects and patients, however, exceeded the 20% limits for fixation losses.
AB - Automated perimetry was performed on both eyes of 54 normal subjects, 36 patients with ocular hypertension and normal visual fields, and 20 patients with early glaucomatous visual field loss to evaluate false-positive errors, false-negative errors, fixation losses, consistency of double determinations, and testing time. For all subject groups and response measures, large interindividual variation was found. No meaningful age-related changes were obtained for false-negative errors, false-positive errors, fixation losses, or consistency of double determinations. Contrary to earlier reports, we found a low number of normal subjects and patients exceeding the 33% false-positive and false-negative limits established for the Humphrey Field Analyzer. A large number of normal subjects and patients, however, exceeded the 20% limits for fixation losses.
UR - http://www.scopus.com/inward/record.url?scp=0024466720&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0024466720&partnerID=8YFLogxK
U2 - 10.1001/archopht.1989.01070020690029
DO - 10.1001/archopht.1989.01070020690029
M3 - Article
C2 - 2818281
AN - SCOPUS:0024466720
SN - 0003-9950
VL - 107
SP - 1612
EP - 1615
JO - Archives of Ophthalmology
JF - Archives of Ophthalmology
IS - 11
ER -