Thanks Wayoftheleaf and Birdgirl. Both y'all gave helpful info. All y'all did...and I thank you. I'm using the Opcon-A (called it the wrong name yesterday - doink!). I like it and am cutting down on the use. I've just used it always to hide my eyes, so now they rely on it or I look BAKED. Not good for office or home. Thanks again! I'll let you know over time how my eyes hold up.