Ever since a cataract operation I have visual disturbance fairly painless migraines which once in a while keep me searching for vocabulary. I have had this during adolescence and menopause a few times but since the operation I have had quite a few light triggered aura migraines and more rarely this is followed by a difficulty finding words. As well, since the cataract removal I have very frequent olfactory illusions of smoke or dying embers. I wonder about the relationships of these events.