While training at the gym, I accidentally looked at the sun reflecting off a windshield and that triggered my scintillating scotoma. I spent the final third of my gym time minus about a third of my vision. A bright circle of electric blue-white light, like sparks from an arc welder, strobed across my field of vision. I was afraid I wouldn’t be ok to ride my bike home, but thankfully it went away after about fifteen minutes. I guess I’m going to have to wear my sunglasses at the gym.
Whenever this strikes, I’m always scared it will not go away. At its worst, I’ve had it 24/7 for four months across about 75% of my vision. Because it’s such an unusual disorder, most folks have no idea how incapacitating it is. I usually get a sort of hangover afterwards which leaves me with increased brain fog.