RED EYE CORRETION FOR iOS 12.2

I made a test with a few photos on my Mac. On a Mac I can run exiftool (https://sno.phy.queensu.ca/~phil/exiftool/install.html) and set the EXIF flag "Flash did fire".

I type this command into the Terminal, followed by a space, then drag the file onto the command line and enter return

/usr/local/bin/exiftool -overwrite_original_in_place -preserve '-Flash=On, Fired' 

Then I import the file into my iCloud Photos Library, and vioila! With the flash tag enabled I will see again the red-eye tool in Photos on my iPhone X with iOS 12.2

I am only seeing the RedEye Tool on the photos, where Photos could automatically detect a face. On the other photos it is missing.

Could Photos detect a face in the photo that you are trying to edit?

You may want to send feedback to Apple with a feature request. I am also frequently having to fix red eyes on scanned photos, but the scan will also not have an exif tag for "Flash Fired".

Photos for iOS - Feedback - Apple

In Photos on the Mac the Red Eye tool is always available. But it will not work, if Photos cannot find an eye.

Added. I am seeing the Red Eye tool only on photos, where the flash did fire. It may be a coincidence, but the user guide is saying: Edit photos and videos on iPhone - Apple Support

• Use the Remove Red-eye tool  when you take a photo with flash. Tap the tool, then tap each eye that needs to be corrected.

The tool used to show also for photos, that have not been taken with a flash, if I remember correctly.