脑源性视觉障碍是一组由中枢视觉通路受损导致的视觉功能障碍症候群。脑源性视觉障碍对儿童的运动、认知等方面影响深远，早发现、早干预至关重要。基于临床实践的迫切需要，中华医学会儿科学分会康复学组和眼科学组组织国内相关专家联合制订“儿童脑源性视觉诊断与治疗专家共识（2023）”，对儿童脑源性视觉障碍的定义、评估、诊断及治疗提出了15条推荐意见。.

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The childhood condition of visual difficulties caused by brain damage, commonly termed cortical or cerebral visual impairment (CVI), is well established but has no internationally accepted definition. Clarification of its core features is required to advance research and clinical practice. This systematic review aimed to identify the definitions of childhood CVI in the original scientific literature to describe and critically appraise a consensual definition of the condition. MEDLINE, EMBASE, PsychINFO, CINAHL and AMED databases were searched in January 2017. Studies were included if they (1) were published original research, (2) contained a childhood CVI sample, (3) contained a definition of CVI and (4) described their CVI identification/diagnostic method. Thematic analysis identified concepts within definitions and narrative synthesis was conducted. Of 1150 articles, 51 met inclusion criteria. Definitions were subdivided according to detail (descriptive definition, description not reaching definition status and diagnostic/operationalising criteria). Three themes concerning visual deficits, eye health and brain integrity were identified (each containing subthemes) and analysed individually across definitions. The most common themes were \'visual impairment\' (n=20), \'retrochiasmatic pathway damage\'(n=13) and \'normal/near normal eye health\' (n=15). The most consensual definition identified here may not be the best quality for advancing our understanding of CVI. We argue for the alternative definition: CVI is a verifiable visual dysfunction which cannot be attributed to disorders of the anterior visual pathways or any potentially co-occurring ocular impairment. We propose reporting guidelines to permit comparison across studies and increase the evidence base for more reliable clinical assessment and diagnosis.