I had a stigmaisn (sp?) in/on both eyes. My left eye is for distance and my right eye is for close up. I have two special lenses to correct the stigmaisn (sp?). My eye surgeon told me my brain might not tolerate the two different lenses. I wore a flexible (not the correct word & I too tired to remember the correct word) lens for a couple of weeks on my right eye. Did not have knausia as some might. Have had my cataracts removed for over 5 years and love them. Sorry about my spelling. Any questions, please PM me.