What Exactly Are The Symptoms Of A Atypical Migraine? I

What exactly are the symptoms of a atypical migraine? I am 63 and have had times when my left eye goes out of focus for up to several hours, there have been time when I have woken up and had no central vision for about 5-10 minutes then it slowly clears up and I can see fine. I have had TIA's in the past and am totally lost with these new symptoms help please..