Involuntary Eye Movement, Blurriness, "Blackout"
A pleasant day.
I've been wearing eyeglasses starting 7th grade; 13 years old, and haven't really taken them off since. My grade also slowly increased as I aged, about double, now that I'm 19. Family has a history of pretty bad eyesight too, but I'm currently the only one who really needs to wear lenses everyday. It has been bothering me recently (which made me create this account) that my eyes would shift suddenly. I notice it mostly when writing, sometimes whenever I fix my focus on a near object too. But there may have been more occurrences and I just haven't remembered/felt as much.
To sequence how it happens:
Everything begins okay. For a few minutes of jotting words down, my vision gets blurry at some point and my eyes would then quickly roll to a direction (horizontal? vertical?) I really can't tell. But it surely cuts the light out for me momentarily, like a "blackout" – it's also difficult to tell whether my eyes are open or closed. In the end, I blink involuntarily and I get my normal vision back. It doesn't matter whether I have spectacles on or not, this "nystagmus" (according to the internet) does its thing day or night.
I usually do my best to research, but this time, I would really like to know directly from asking here. I appreciate any feedback, as my state has been quite bothersome. Thank you!