No camera is perfect and that includes the one in your iPhone and iPad. One of the most common issues most people experience is redeye, which can be caused from flash or a bad glare. Luckily, instead of letting it ruin what would have been a great photo, just use the editing tools the Photos app provides to remove the redeye in just a few taps!
How to fix redeye with the Photos app on your iPhone and iPad
Launch the Photos app on your iPhone or iPad.
Tap on the photo you'd like to remove redeye from.
Tap on the Edit button in the upper right hand corner.
Tap on the redeye correction tool in the bottom navigation.
Zoom in and tap on the redeye you'd like to correct if it didn't autocorrect on its own.
Once the redeye is fixed, tap on Apply at the top right.
Tap on Save to write over the original photo with your redeye corrections.
That's all there is to it! Most times I find the redeye correction tool auto-detects nicely and corrects issues on its own. However, there are times when you'll manually need to tell it where to correct. The redeye correction tool also works great on pets and people who have yellowed eyes from closeup flash as well. Give it a try and let me know how it worked for you in the comments!