Floaters are particles floating around in your eye's vitreous fluid. I have them, but I only see them in rare circumstances when sunlight is shining into my eye

Floaters are particles floating around in your eye's vitreous fluid. I have them, but I only see them in rare circumstances when sunlight is shining into my eyes at exactly the right angle. There is also a disfunction of your cornea, "Fuchs' corneal dystrophy", which can cause glare, halos and streaks, especially at night. I just found this by googling. Wikipedia defines visual snow as a neurological condition, and I don't wish to conflate that with floaters or corneal problems. I can experience afterimages if I look at a strong coloured light for a while, then immediately look at a white piece of paper. I'll see an after image in the complementary colour, because the image is temporarily "burned in" to my photoreceptors. I understand that this is a universal experience. What I'm looking for is different names for each of these distinct visual experiences, if they have different underlying mechanisms.