Following the Crystalens implant surgery, my vision was excellent (20/10 within 24 hours) and there was no discomfort, or even sensation from the lens, in my eye. Of course, I was thrilled! However, approximately 2 weeks later, I spent time in the sauna while on vacation, and experienced some dehydration. Water & pretzels alleviated most of that within a few hours, but the eye with the implant continued to feel dry and gritty. I called the surgeon, who recommended Systane, which I have been using liberally for a week. I did see his associate during this period, who assured me that the problem would clear up with continued use of Systane. I am a bit concerned, since it is now 8 days since the episode of dehydration, and my eye is still not fully recovered; it seems a relatively minor event to produce such an extended response. Am I concerned for no reason? Is dehydration a particular issue with the Crystalens implant? Have others experienced this problem?