Around 3 days ago I began noticing this visual distortion in my left eye specifically. When paying closer attention to it, I noticed its in the shape of an arch, or half oval, curving in the shape a rainbow would take. I notice it most when I blink, appearing like an imprint in my vision - similar to if i had just had something bright flash in my vision. I went to the optometrist, and my eye health appeared normal.
I reported i had done a heavy squat weight training session the same night it happened, within the hour of the workout ending. The optometrist believed this could be the cause. But I wondered how it could if, upon inspection of my eye, nothing appeared out of order. Wondering if anyone has had anything similar or information of what could be causing it.