He had his appointment up at the eye hospital cornea clinic yesterday and they said the ulcer was healing, which is great news.
He got a prescription for more antibiotic drops and another prescription for steroid based eye drops to reduce the swelling which he had last time he had an ulcer. He was allowed to start using the steroid drops immediately and they have started to work, his eye looks slightly better.
He also doesn't have to wake up every hour to put the antibiotic drops in anymore, which is the best news so he can sleep straight through the night.
Thanks for asking @Jimbob