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