Question

Why we are not able to see the objects when we enter from bright light to a room with dim light?

Answer 1

When we are in an area with bright light, we can see clearly so our pupils are smaller to avoid damage to the eyes. In a dimly lit room, our pupils are wider because we need to focus our vision and there is not enough light to cause damage to the eyes.

It takes a while for our pupils to adjust to a larger size when we enter from a brightly lit area to a dimly lit room. Therefore, it takes some time to be able to see things in a dimly lit room.