Ocular migraine without pain/nausea/etc?

Trying to figure this out. Can recurring blurry/heatwave spots in one eye but without other migraine symptoms be ocular migraine?? Obv I’m making an optometrist appt, but I’m curious of others’ experience.

My daughter is having this experience like once a week (she just told me!) and it lasts about an hour. She gets typical migraines and has had vision related aura with headache. But with this, the vision issues are the only symptom! She also hasn’t been having migraines nearly as often or severe as she used to. Unless that’s what these are? Sounds like ocular migraine but I’ve read those usually come with other symptoms? (I also have migraines but not much that affects my vision)