Thank you so much for your reply!
I definitely don't intend to handle him ever again during shed. I only did it now because I was unable to get a picture of his head beforehand, which was needed for this post. I fed him an hour after handling and probably won't attempt to handle for at least a week.
Ill get the ointment as well! The top of his cage *is* abrasive, but I haven't witnessed any rubbing behavior... hmm. I'll see about potential replacements.
Also, don't worry, he has both eyes. It's just the lighting in the image. And the area around his head/left eye only looks whitish due to the stress on the skin caused by the scab.
Again, thank you for your comment. I'll be keeping a close eye on him.