I think they just look like that sometimes. I found a lot of images of tigers with significant definition until finding one I could identify.

This is Luca, and his profile doesn't say anything about a medical condition.
https://www.carerescuetexas.com/meet-the-animals/tigers/luca.html
You can see videos of the cats here:
https://m.youtube.com/@bigcatderek/videos
I think the lighting angle might be doing a lot of the work in the OP image.
e: I actually just want to share some tiger pictures because I like them.





I have a celiac diagnosis now, but I had to diagnose myself online and fight to get tested. I don't judge people who try to figure out their own healthcare because the system is happy to abandon them.