Why do I see weird dark pulses when exersizing while bright out?

[Lucysmith202]

Hi! I get ocular visions and migraines occasionally and it’s as a result of genetics because my mom had the same thing. I went to the eye doctor about a year ago just to get them checked out after I started getting ocular migraines. They told me my eyes were really healthy and all that. Anyways, I have been noticing that when I play sports, mainly in bright weather, or ski, I sometimes see this black warpy pulsation in my upper vision and it’s really weird. At first I thought it was just me seeing my heart beating, but it seems to just be kind of warpy looking and I’m not sure what to do. I think it may have something to do with bright weather and the fact that I have sensitive eyes. I’m pretty concerned though, and with a ski trip coming up I’m stressing out about having this weird thing happen and ruin my trip. Help!

[JohnHaganMD]

An observant person can in some cases see pulsation of the vision with the pulsations timed to the heart beat and pulse. If I sit quietly for a while I can see this myself in my vision.