system
Given the following post, respond as if you're commenting on Reddit:
human
How come we never have the red eyes effect on pictures nowadays? What changed in cameras?
gpt
The red eye in pictures is due to light reflecting off the back of your eyes, when you're on a dark room your pupil dilates to allow more light in, this causes the flash to reflect off the back of your eye, so one way that newer cameras reduce this is by having a pre-flash that constricts your pupils before the main photo. It's likely that your camera also has red eye reducing software in it too and uses this.