You could be experiencing a combination of things, first our skin cycles monthly, I find right before my skin gets to the end of it's natural cycle my eyes will seem a little drier regardless of how much creme I'm using. You could also be a tad dehydrated, even if you do drink a lot of water there could be something else going on in your body contributing to skin dehydration anyway....Normally when you are experiencing just a tad of dryness and seeing fine lines you can easily reverse it so I wouldn't panic. I even use a couple of exfoliating type products around the eye area like Sinceuticals glycolic eye gel at night or Revive eye renewal creme to help speed up the monthly cycle your skin goes through. Keep wearing sunglasses, try to prevent squinting, wear day and night eyecremes and eye sunscreen, and use a gentle exfoliating treatment formulated for the eye area and you should see lasting results for years to come.