I subscribed to Parkinsn a couple of weeks ago seeking info of help to a friend whose mother was recently diagnosed with PD. The quality of the info is great and very helpful to her. (I wish I could find a comparable source on Menieres which one of my grown daughters has. If anyone knows such a group, pls let me know. Re: Blue Glasses. This may not be pertinent, but, after reading about blue glasses, I thought I'd mention it. Last week I had my regularly scheduled eye-exam. When I returned to my office after an extra hour, the effects of dialation were still obvious. When I sat down in front of my computer, the white background of the color display was a mess - visual static, whorls, etc. signifying to me that the dialation was still a factor. I stopped by my friend's desk and glanced at the screen of her computer (newer than mine) in passing. The background color was blue. Not a flicker. No visual static at all. Puzzled, I went to an adjacent computer. The background color up on the screen was white. Visual static. I sat down at that computer and, squinting against the glare and the 'pulsating' visual static, I went into the software and changed the background color to blue. No static. Nothing. Just a normal, steady background. Blue, no visual disturbances. White, yes. What this means, if anything, I don't know. But it seemed worth mentioning. Thanks to all those contributing here. Many, many people are being helped. Take care. Cindy Stringer ([log in to unmask])