If someone with a harmless eye condition called optic disc drusen gets mistaken for having optic neuritis and is given steroid treatment, they might develop side effects like a puffy face — but their vision and eye appearance won’t get better.

What we've found so far is that when people with optic disc drusen are misdiagnosed with optic neuritis and given steroid treatment, they may experience side effects without any improvement in vision or eye appearance [1]. Our analysis of the available evidence shows this outcome is consistently reported across the studies we’ve reviewed. Optic disc drusen is a harmless condition involving small deposits in the optic nerve. It can look similar to optic neuritis, which is an inflammatory condition. Because of this similarity, some patients are mistakenly treated with steroids, which are meant to reduce inflammation [1]. However, since optic disc drusen is not inflammatory, the steroids do not help the underlying issue [1]. The evidence we’ve reviewed indicates that these patients do not see improvements in their vision or in how their optic nerve looks during exams after steroid treatment [1]. At the same time, they may develop known side effects of steroid use, such as facial puffiness [1]. This suggests that the treatment carries risks without delivering benefits in these cases. Our current analysis leans toward the idea that steroid treatment in misdiagnosed optic disc drusen patients leads to side effects but not meaningful improvements. Still, our understanding is based on a limited number of assertions, and we cannot rule out other outcomes until more data is available. The practical takeaway: if you have optic disc drusen and are being considered for steroid treatment due to suspected optic neuritis, it may be worth confirming the diagnosis carefully—since steroids might cause side effects without helping your vision.