维生素A缺乏症（VAD）在发展中国家很常见，但在资源丰富的国家却很少见。在发达国家,吸收不良和行为问题是VAD的更常见原因。目前的病例是一个健康儿童的例子，他在文化影响和情绪压力的背景下，由于维生素A缺乏而出现眼部症状。
Vitamin A deficiency (VAD) is common in developing countries but rare in resource-rich countries. In developed countries, malabsorption and behavioral issues are more common reasons for VAD. The current case is an example of a healthy child who developed ocular symptoms due to vitamin A deficiency in the setting of cultural influences and emotional stressors.
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