Since it is a chronic problem, I doubt that there is anything effective enough to buy over the counter. I would definitely talk to your derm. You would first have to take care of itchiness and dryness, before you can start treating your lines.
For over the counter products. in case you haven't tried already, try vaseline, nivea, cetaphil, or maybe even origin's never a dry moment. (heard great thinks about this one from origins, i use their line too). None of these are eye- treatments, just regular moisturizers. I haven't found an eye-treatment moisturizing enough to treat very dry skin. I do use neutrogena's right now, and since then, I haven't had the problem of dry skin in eye area that often. But when I did, I either used nivea or vaseline. Some people react to it though. But Origins gives out samples for free in their stores. Don't know if they do it online.. But I have a store near me, I could get a sample for you, and sent it to you if you wish....
These are just my personal experiences and recommendations. maybe somebody on the board will have better suggestions. Going to a derm would definitely help out..
Oh and yeah, welcome to Mut.