This publication is a narrative review exploring potential connections between gut microbiota dysbiosis and specific pediatric ophthalmic conditions. The scope encompasses allergic conjunctivitis, myopia, retinopathy of prematurity, and postoperative inflammation following congenital cataract surgery within pediatric populations. The authors aim to synthesize existing literature to understand these potential systemic-ocular relationships.
The authors synthesize available literature to identify emerging associations rather than definitive causal pathways. No specific effect sizes, absolute numbers, p-values, or confidence intervals were reported in the source material. The review highlights that while links are noted, the evidence remains preliminary and descriptive. The main results indicate emerging associations between gut microbiota dysbiosis and the listed pediatric ophthalmic conditions.
A key limitation acknowledged is the lack of established causality. The review does not report sample sizes, settings, or follow-up durations for the underlying studies. Safety data regarding adverse events or discontinuations are also not reported. The authors explicitly note that causation should not be inferred from these findings.
Practice relevance is currently limited by the observational nature of the data. Clinicians should recognize these findings as hypotheses requiring further investigation rather than established clinical guidelines. Interpretation of these results requires caution until more robust evidence becomes available to support clinical decision-making in pediatric eye care.
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BackgroundAs a core component of the human microecosystem, the gut microbiota modulates systemic immune-inflammatory responses, metabolic homeostasis, and neural signal transmission via the gut-eye axis. Dysbiosis of the gut microbiota has been closely linked to the onset and progression of multiple ophthalmic disorders in adults. Childhood represents a critical window for both gut microbial colonization and maturation, as well as a formative period for ocular development and visual function establishment.ObjectiveThis review systematically examines the evidence connecting gut microbiota to several common pediatric ophthalmic diseases, including allergic conjunctivitis, myopia, retinopathy of prematurity, and postoperative inflammation following congenital cataract surgery.MethodsWe conducted a narrative literature review analyzing the potential mechanisms underlying the gut-eye axis, including immune regulation, microbial metabolite signaling, crosstalk between the intestinal barrier and blood-ocular barrier, and neural pathways. A comprehensive search of PubMed, Web of Science, and Scopus databases was performed for literature published from January 2000 to October 2025 using search terms related to gut microbiota and pediatric ophthalmic diseases. Studies were selected based on clinical relevance and contribution to understanding gut-eye axis interactions in pediatric populations.ResultsThe review identifies emerging associations between gut microbiota dysbiosis and various pediatric ophthalmic conditions, with evidence supporting immune dysregulation, metabolite imbalance, and barrier dysfunction as potential mechanistic pathways.ConclusionEarly disruptions to the gut microbiota may exert potential long-term effects on ocular health. This review aims to provide new insights into the etiology, early intervention, and precision management of pediatric ophthalmic diseases.