Lim ME, Jiramongkolchai K, Xu L, et al. - Since handheld optical coherence tomography (HH-OCT) can be used with sedation in children who are not amenable to traditional imaging, researchers used HH-OCT to report ganglion cell complex (GCC) and retinal nerve fiber (RNFL) measurements in 67 healthy, full-term children (67 eyes) ≤ 5 years of age undergoing sedation or anesthesia. No relationship was found between GCC volume, RNFL thickness, patient age, or axial length. From 6 months to 5 years of age, average GCC volume and RNFL thickness was stable. This research provides the standard data obtained by HH-OCT for GCC and RNFL in healthy eyes of young children to be used to test those with optic neuropathy.