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To compare visual field indices in normal children and adults with similar retinal nerve fiber layer (RNFL) thickness on optical coherence tomography (OCT). This cross-sectional study included 59 eyes of 59 normal children 6-18 years of age compared to normal adults. The children underwent visual field testing on the Humphrey Field Analyzer (HFA) and RNFL thickness measurement on OCT. Normal adults who had undergone OCT and visual field testing were retrieved from the OCT database. The mean deviation (MD) in each child was compared with the MD in RNFL thickness–matched eyes of normal adults. Children 6-11 years and 12-18 years were analyzed separately. Overall, the MD of children was significantly less than that of the normal adults despite having the same RNFL thickness (−2.42 ± 1.42 dB vs −1.61 ± 1.47 dB [ P = 0.006]). When stratified by age, the difference in MD of children <12 years was significantly less than normal adults (−2.72 ± 1.5dB vs −1.53 ± 1.2 dB [ P = 0.003) while in children >12 years, the difference did not reach statistical significance (−2.18 ± 1.2 vs −1.51 ± 1.32 [ P = 0.12]). In our study cohort, children <12 years had lower visual field indices than adults. Their visual fields may appear worse than they would for an adult with the same RNFL thickness. Normal children >12 years of age seem to have a retinal sensitivity comparable to the adult normative database. It is worthwhile to consider the development of a separate pediatric normative database for the visual field assessment of children <12 years of age. [ABSTRACT FROM AUTHOR]

To assess the feasibility and accuracy of determining extraocular muscle insertion distance from the limbus of previously operated extraocular muscles with the swept-source anterior segment optical coherence tomography (AS-OCT) compared with wide-field ultrasound biomicroscope (UBM). Patients with a history of previous strabismus surgery for whom additional strabismus surgery was planned were enrolled. The insertion distance was measured by AS-OCT and UBM before reoperation and compared to the caliper measurement at the time of surgery. Observers taking measurements were masked to patient data. Patient comfort for both machines was graded on a scale of 1-10 and timing of both imaging procedures was recorded. Thirteen previously operated muscles of 6 subjects (age 20.3 ± 4.4 years; range, 11-25) were imaged. The muscle insertion could be identified in 12 cases on AS-OCT and 10 cases on UBM. The difference between the imaging result and the caliper reading was ≤1 mm in 9 cases on AS-OCT and 5 cases on the UBM (69% vs 38%; P = 0.03). The maximum insertion distance on AS-OCT was 13.8 mm; on UBM, 10.4 mm. AS-OCT had a higher grade than UBM for patient comfort (P = 0.0005) and speed (P = 0.001). In our cohort, AS-OCT identified the muscle insertion distance more accurately than UBM. AS-OCT measurements were judged more comfortable to the patient, and images were acquired faster. In large recessions, wide-field UBM yields suboptimal results compared with AS-OCT. [ABSTRACT FROM AUTHOR]