I am a little bit worried

Well I have astigmatism I'n both eyes and for some reason only my left eye sees good with the glasses on but my right eye still sees double even with the best lens he tried but he says he those not see anything wrong with my eye but is referring me to a specialist to see why my right eye is still seeing double anyways he said it's not neurological but I'm scared it might be ALS or something worse I'm a healthy 18 year old male and my legs twitch occasionally that's a sign of ALS so could it be ALS

[Houman Vosoghi, MD]

I highly doubt it.  Cover your left eye, if right sees double then the problem is specific to the right eyeball itself.  You should see an ophthalmologist for a full eye exam.  In my experience, keratoconus is the most common cause in an otherwise healthy young person.  Both eyes need to be thoroughly examined though.

HV