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목적 : To investigate the reliability of FDT and 24-2 and 30-2 Humphrey perimetry in children.
방법 : We retrospectively reviewed the records corresponding to 274 eyes of children aged 6–12 years, who underwent FDT and 30-2 and 24-2 Humphrey visual field testing from January 2011 through March 2013. Each test group was divided into 2 subgroups: a normal visual acuity subgroup (>0.8 Snellen, group 1) and a low visual acuity subgroup (≤0.8 Snellen, group 2). We measured mean deviation (MD) and pattern standard deviation (PSD) for each visual field examination. Reliability indexes such as fixation losses, test duration, and the number and rate of false-positive errors were analyzed.
결과 : In both subgroups, test duration was shortest for 24-2 perimetry (group 1: p < 0.0001; group 2: p < 0.0001). FDT was associated with lower rates of fixation loss, false positive errors, and false negative errors than 30-2 perimetry. However, fixation loss rate of FDT was only significantly lower under the subgroup analysis. The normal visual acuity subgroup had a higher MD score on FDT vs. 30-2 perimetry (P=0.028). However, the PSD was similar for all tests.
결론 : This reliability study showed that FDT perimetry is superior to 30-2 SITA perimetry. There was no significant difference in the reliability indexes for FDT and 24-2 SITA perimetry, thus, when considering test duration and reliability, 24-2 SITA perimetry appears to be the optimal choice in pediatric patients.
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