The red eye from flash is from the subjects pupils being undialated in low light. Your basically bouncing the flash off the back of the eye. Cameras "fix" this in Red Eye mode by triggering a series of flashes before the main flash and snap to dialate the pupils down. Our phones do not have a red eye mode, so your gonna likley have to deal with it in software. The adobe programs all have it, and your gonna have to hunt and peck your favorite software to see if they have a "red-eye" fix setting. Many have this as auto-fix when in download mode.