Objective To examine the reliability of Swedish Interactive Thresholding Algor ithm Fast (SITA Fast) visual fields (VFs) in prepubertal idiopathic intracranial hypertension (IIH) and to compare whether age, gender, or severity of visual outcome influenced the reliability o f VF tests. Design Prospective, longitudinal cohort study. Participants Twenty- six prepubertal children (< 11 years of age; mean age, 7.2 years) with IIH. Test ing Children were prospectively followed up using a childoriented program, which included SITA Fast VF tests. Age, gender, and severity of visual outcome were c orrelated with reliability of performance on SITA Fast VFs using a 1-way analys is of variance, point-biserial correlation, and the chi-square test for indepe ndence of observation. Main outcome measures Statistical analyses results that c orrelated the reliability of SITA Fast VFs with age, gender, and visual outcome. Results Three children were treated at the age of 2 years and were unable to pe rform automated VF tests. Four children were treated at the age of 4 years, 3 of whom were able to perform repeatable reliable SITA Fast VF tests. Forty-two ey es of 21 children had an average SIT AFast test time of 4.5 minutes for each eye , compared with 8 minutes using the Fastpac strategy. Age was not associated wit h reliability scores of SITA Fast tests (F=0.971, not significant ns). Gender did not influence the reliability of SITA Fast VF tests (chi-square(1)=0.669, n s), nor did severity of visual outcome (chi-square(2)=3.348, ns). Visual defici ts were observed in 55%of patients at presentation and in 27%of patients after resolution of papilledema. Conclusions The SITA Fast VF tests can be performed from age 4 years and offer a reliable method for shortening test time. A child- oriented follow-up program, which entails a shortened testing time, may improve outcome in prepubertal IIH.
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