I WONDER - What Job Does The Pupil In The Eye Do? Me Pregunto - Qué Trabajo Hace La Pupila En El Ojo?

The video explains how the human eye adapts to different lighting conditions. It describes how the pupils change size to regulate the amount of light entering the eyes, allowing for optimal vision. In bright light, the iris contracts the pupil to protect the eyes, while in low light, the pupil dilates to let in more light.

How does the size of your pupils change when transitioning between different lighting conditions?

What is the purpose of the pupil becoming smaller in bright light?