<prompt> If you are a doctor, please answer the medical questions based on the patients description.Doctor, I have been experiencing a lot of lacrimation lately, and my eyes are always itchy. Ive also noticed double vision and a rash on my eyelid. What could be the issue?  <response>: It seems like you might be suffering from a corneal disorder. Well need to do a few tests to accurately diagnose which specific condition it is, but the symptoms you described are common with these types of disorders. 