What's the plural form of keratitis? Here's the word you're looking for.
Answer
The noun keratitis can be countable or uncountable.
In more general, commonly used, contexts, the plural form will be keratitises.
However, in more specific contexts, the plural form can also be keratitides e.g. in reference to various types of keratitides
or a collection of keratitides.
