Well….I’m not sure if you’ve ever heard of ocular migraines, those zig zag, pulsating lines and stars that happen in your vision…usually before a migraine occurs but not always? Just had my first case in a couple of years and they have left me exhausted….I’m just glad they are normally benign and only last about 30 minutes….but it is weird having your vision appear like you’re looking through shattered glass…..and that no one knows the cause of them…just that they are not a symptom of of other underlying problems…and, I think my vision has gotten better in the hour or so after they ended….yow!