TY - JOUR
T1 - Effect of eye testing order on automated perimetry results using the swedish interactive threshold algorithm standard 24-2
AU - Barkana, Yaniv
AU - Gerber, Yariv
AU - Mora, Ricardo
AU - Liebmann, Jeffrey M.
AU - Ritch, Robert
PY - 2006
Y1 - 2006
N2 - Objective: To evaluate whether the order of eye testing affects the mean deviation (MD) or the test reliability of visual field testing using the Swedish Interactive Threshold Algorithm (SITA) standard 24-2. Methods: Consecutive patients with manifest or suspect glaucoma with 2 prior sets of SITA standard 24-2 test results performed on the right eye first were enrolled. A subsequent test was performed on the left eye first. For each eye, the MD and the test reliability indexes (≥20%) were compared among the 3 successive examinations. Results: Forty-seven patients (29 women and 18 men; mean±SD age, 70.6±11.9 years) were enrolled. The MD±SD was -5.83±5.43 dB OD and -5.46±4.86 dB OS. There was no statistically significant difference in theMD or the test reliability among the 3 test results for either eye. Fixation loss was responsible for the unreliable fields in almost all cases. Conclusions: Among this cohort of patients experienced with automated perimetry in a glaucoma subspecialty practice, changing the order of eye testing using the SITA standard 24-2 did not have a significant effect on the MD or the test reliability. Intereye fatigue may not be clinically significant with this algorithm. Fixation loss remains a problem with the use of this algorithm.
AB - Objective: To evaluate whether the order of eye testing affects the mean deviation (MD) or the test reliability of visual field testing using the Swedish Interactive Threshold Algorithm (SITA) standard 24-2. Methods: Consecutive patients with manifest or suspect glaucoma with 2 prior sets of SITA standard 24-2 test results performed on the right eye first were enrolled. A subsequent test was performed on the left eye first. For each eye, the MD and the test reliability indexes (≥20%) were compared among the 3 successive examinations. Results: Forty-seven patients (29 women and 18 men; mean±SD age, 70.6±11.9 years) were enrolled. The MD±SD was -5.83±5.43 dB OD and -5.46±4.86 dB OS. There was no statistically significant difference in theMD or the test reliability among the 3 test results for either eye. Fixation loss was responsible for the unreliable fields in almost all cases. Conclusions: Among this cohort of patients experienced with automated perimetry in a glaucoma subspecialty practice, changing the order of eye testing using the SITA standard 24-2 did not have a significant effect on the MD or the test reliability. Intereye fatigue may not be clinically significant with this algorithm. Fixation loss remains a problem with the use of this algorithm.
UR - http://www.scopus.com/inward/record.url?scp=33745048937&partnerID=8YFLogxK
U2 - 10.1001/archopht.124.6.781
DO - 10.1001/archopht.124.6.781
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AN - SCOPUS:33745048937
SN - 0003-9950
VL - 124
SP - 781
EP - 784
JO - Archives of Ophthalmology
JF - Archives of Ophthalmology
IS - 6
ER -