Demir, Ulku2026-04-042026-04-0420260883-07381708-8283https://doi.org/10.1177/08830738251382296https://hdl.handle.net/11616/109023Purpose: Evaluation of the incidence and variability of ocular manifestations in children with neurofibromatosis type 1. Methods: In this study, the files of 71 children aged 0-18 years with neurofibromatosis type 1 were retrospectively analyzed. Child age groups were categorized as 0-6, 7-12, and 13-18 years. In cycloplegic refractive examination, >=-0.50 Diopter (D) values in spherical equivalents were recorded as myopia, >=+2.0 D as hypermetropia, and >=+/- 1.0 D cylindrical values as astigmatism. Patients with a difference of >= 1 D in spherical or cylindrical equivalents between the 2 eyes were considered anisometropic. Amblyopia was defined as a best-corrected visual acuity <= 0.8 with Snellen chart and a difference of at least 2 lines between both eyes. The presence of 2 or more iris Lisch nodules (iris hamartoma) was considered positive. Results: Of the 71 patients whose ocular findings were evaluated, 32 (45.1%) were boys and 39 (54.9%) were girls. According to age and gender, myopia (P = .878), hypermetropia (P = .329), myopia astigmatism (P = .761), hypermetropia astigmatism (P = .457), mixed astigmatism, anisometropia (P = .836), amblyopia (P = .551), emmetropia (P = .234), optic glioma (P = .598), strabismus (P = .219), and ptosis (P = .099) showed no significant difference (P > .05). A statistically significant difference was observed in the Lisch nodule, one of the ocular examination findings, according to age and gender (P < .05). Conclusions: Pediatric patients with neurofibromatosis type 1, with common ocular manifestations, should undergo a comprehensive ophthalmologic examination. Early diagnosis and treatment are crucial for improving the clinical course of the disease and preserving vision.eninfo:eu-repo/semantics/openAccesseye findingsLisch noduleneurofibromatosis type 1refractive errorsEvaluation of Ocular Findings in Pediatric Patients With Neurofibromatosis Type 1Article4133964024106902110.1177/088307382513822962-s2.0-105019186706Q1WOS:001593132900001Q2