Am I going blind?

[TheRedLemon]

My parents are idiots and keep putting off taking me to an eye doctor. About a week ago I saw sparks in the air for no reason, just floating. Last time I went to a doctor she told me something  bad about my optic nerve but I don't remember what it was. I get my eyes checked about once a year because I have marfan's sydrome and that is known to damage eyesight. Today while reading comments on youtube with the dark theme on I started seeing what you would see if you stared at a light too long but instead it was perfect diagonal lines. It went away after a bit but I'm scared and don't have any explanation for the sparks.

[JohnHaganMD]

I can't tell you what caused the problem, there are a number of possibilities.  The most common problem with Marfan's Syndrome is subluxated or dislocated lens.  Another possibility if the diagonal lines lasted 5-20 minutes if Ocular or Eye Migraine. you need to start by seeing your Eye MD ophthalmologist now because this is a new symptom, after that you need to see your personal MD.  If you want show this to your parents if they are reluctant.