I have been lurking for ~8 months, the same time I started the Paleo WOE. I have an astygmatism...I have a lot of trouble reading street signs. Anyway, I got prescription glasses a year ago. Since starting paleo, I have worn my glasses very little, although my eyesight hasn't improved a great deal. But when I do consume carbohydrates (usually a can of coke), my vision gets extremely blurry for about 6-8 hours. Thought some would find that interesting. Brad