Jisho

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やもうしょう 夜盲症
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Noun
1. night blindness​
Wikipedia definition
2. Nyctalopia​Nyctalopia (from Greek νύκτ-, nykt- "night"; and αλαός, alaos "blindness") also called "Night Blindness" is a condition making it difficult or impossible to see in relatively low light. It is a symptom of several eye diseases. Night blindness may exist from birth, or be caused by injury or malnutrition (for example, a lack of vitamin A). It can be described as insufficient adaptation to darkness.
Read “Nyctalopia” on English Wikipedia
Read “夜盲症” on Japanese Wikipedia
Read “Nyctalopia” on DBpedia

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