Its not quite like making brown eyes blue, but after eyelid surgery your eyes can become dryer than normal. It is also possible to have overproduction of tears, though that is less common. A lot of patients will experience a little bit of dry eyes after surgery, particularly if you had a tendency towards dry eyes before surgery. Thankfully, this is almost always a temporary problem. The easy solution is solution! That is, you can use artificial tears (drops available over the counter in any pharmacy) to add moisture to your eyes as needed. Some other things you can do are using a lubricating eye ointment at night (I like lacrilube) and in severe cases, some topical steroid eyedrops for a little while after surgery. Be careful if you choose to use lacrilube or other ointments because it will make your vision blurry until it completely dissolves. That's why I recommend only at night right before bed. You dry eye problem can last up to a few months after surgery, but should resolve in time. The tightness will also resolve over time and is likely the result of swelling which gets better everyday after surgery. If you feel like you're not getting any better after a week or so, you should visit with your surgeon to be sure that everything is OK. I hope this info helps!