Hi @mytrumotivationgmail-com . Unfortunately, being diagnosed with one condition doesn't preclude us from acquiring another unrelated condition. Keratoconus and MS can both affect your vision, but in different ways so don't seem related. The only commonality in the two conditions is the cause. The following is a statement regarding Keratoconus :- "The exact cause is unknown. It is believed that genetics and environmental factors play a role." The statement could well apply to MS too. PS I'm not medical, so this is only my opinion. 😉

@mytrumotivationgmail-com, I am understand the hesitation. I get ocular migraines, which come with a pro drone of blurred vision, then vision changes, but no headache, and the residual can last several days. How can I tell if it’s not optic neuritis? I can’t. I spend a lot of time trying to explain the different visual issues I’m having. I find what works the best for me is to try to state “it’s like my previous ocular issues” or “ it’s a new symptom unlike....”. It’s thought though, I recently was sent to the ER for a full day of tests for some vision issues that in the end....yep, ocular migraine not optic neuritis. So in summary, true to explain as best you can in comparing the new vs old symptoms and be prepared to sometimes get a full work up in the ER. Better safe than sorry says my neuro and optho. Hope that’s helpful.