Prosopometamorphopsia (PMO[1]), also known as demon face syndrome,[2] is a visual disorder characterized by altered perceptions of faces. In the perception of a person with the disorder, facial features are distorted in a variety of ways including drooping, swelling, discoloration, and shifts of position.

Prosopometamorphopsia is distinct from prosopagnosia, which is characterised by the inability to recognise faces.

https://en.wikipedia.org/wiki/Prosopometamorphopsia