# 눈동자의 크기 변화

## 눈동자 크기 Pupil Diameter

눈동자의 크기는 기본적으로 빛의 양에 따라 변화하지만, 흥미나 인지적 어려움 등 정신활동에 따라서도 변화합니다. 흥미로운 주제를 볼 때는 눈동자가 커지고, 어려운 계산을 할 때는 눈동자가 작아집니다.


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