I've had occasional ocular migraines (no headache, thankfully) in the past. Started anastrozole about 3 months ago. In the past month, I've had about 1 ocular migraine per week. They don't last long (15 minutes, maybe) but they disturb my vision significantly. If the past, if one started when I was driving, I'd pull over until it went away. They disturb my vision enough that close work, e.g. reading, isn't possible. Either I do something else, e.g. load the dishwasher, or else I just lie down until they go away. At the moment, they are just a nuisance. I just hope they don't become more frequent, last longer, or get worse in some other way.