The objective of this review is to understand the barriers and facilitators of vision screening in the US primary care setting for children aged 3 to 17 years. Childhood vision screening is crucial because it detects children at risk of undiagnosed vision problems. Previous studies report low rates of appropriate vision screening in the primary care setting. We aim to identify barriers and facilitators of pediatric primary care vision screening to inform future interventions to improve childhood vision screening. Studies of all types that identify barriers and facilitators of vision screening in children aged 3 to 17 years in the pediatric primary care setting in the US will be considered for inclusion. We will search PubMed, CINAHL Complete (EBSCO), Scopus, Web of Science (SCI-EXPANDED, ESCI, CPCI-S, SSCI), Cochrane Library, and Embase. We will also search gray literature, including conference proceedings, professional organization reports, and clinical trials. We will use supplemental search strategies, including citation tracking and contacting authors for unpublished data. Titles and abstracts will be screened independently by 2 reviewers and selected for full-text screening based on prespecified inclusion criteria. Only studies in English will be considered. Each included study will be appraised using the mixed methods appraisal tool. Data will be extracted using a modified JBI mixed methods data extraction form. Qualitative and quantitative data will be integrated using a convergent integrated approach. Open Science Framework https://osf.io/nhf5d/.