Well, yes, it is possible to have dark circles under your eyes because of accutane. Accutane has active ingredients of isotretinoin and because of this, it is often used in acne, acne cystic. But on the other hand, it will also lead to some problems in your eyes. For example, it will lead to dark circles, because of the disorder in your eyes. Also, it is possible to have red eyes, itchy eyes. To treat your dark circles, you can just have some fish oil under your eyes. Anyway, you should stop it when you have some symptoms. Or have a conversation with your doctor as soon as possible.