Have any of you all had vision affected during a CH cycle but not during an attack? I do not know if it is coincidental or not (and I suspect it is not), but during my month-long cycle that occurred in February, I felt at times that I had slight double vision. One night it was extreme. I was playing tennis and I saw two balls coming at me when in reality it was only one. After two sets I had to stop playing. I went to an optometrist and she said the muscles in my eyes weren't keeping my eyeballs perfectly aligned. But now that the CH cycle is over I don't have that double vision anymore, either slight or severe. I have been having episodic CHs since 1979, and this cycle was a strange one in several ways, including possibly the vision element. Thanks. Andrew