it is to help let as much light into your eyes as possible so you can see the best you can. this is why our pupils enlarge in the dark
cause your eyes have to adjust
Because the lens has been focused depending on the available light. if you enter a darker room, your eyes have to re-adjust to allow more light through them.
If there is no light you can not see. There is only blackness. This is quite disconcerting. If you put your hand in front of your eyes you can not see it. If the room is dark ie no light then you can not see.
Yes, you can see yourself in a mirror in a completely dark room if your eyes have adjusted to the light yet.
Very bad indeed homie
== We often see color in a dark room because our eyes aren't yet adjusted to the darkness. Close your eyes for a minute or two to let them adjust and the colors should disappear.
Your pupils dilate.
i do think that they are but i am not 100% sure though.
The song that had got these words in it is. Dark room
This is a simple answer. Our eyes require the reflection of white light from an object in order to see it. If there is zero light in a room that is totally dark we can see nothing.
Your pupil expands in the dark in order to obtain more light. Your eyesight is interpreted by the brain with light signals, when it is dark your pupil expands to grab as much light as possible.
tickle the balls. close your eyes. open eyes. run out of room.