Well, generally speaking, there are many people who have double-lids surgery, and then have blurry vision. And we can say that it can be very normal, for after the surgery, your eyes will be easy to be infected. And that is also why you get blurry vision. it is a condition in which, whenever you look at any object, you cannot see it clearly and you see a single blurry and unclear image of an object. To treat it, you should take some measures to find out the direct infection cause. And also, just have some eye drops to relieve it. By the way, protecting your eyes from further infection is also important, so just wear a pair of eye patch.
You get blurred vision because your eyes don't close completely when you are sleeping, resulting in drying of your cornea. When your eyes are dry, you are very likely to suffer from blurry vision. You can't close your eyes completely, when the would is recovering and scars are forming, your eyelids tightened.
Just relax and drip some ocular lubricant into your eyes. Have more rest. Don' t use your eyes for too long.
Well, so you have got something wrong with your eyes. Because as you can see, there will be some side effects on your eyes after the double eyelid surgery, such as infections and some comfort. Anyway, you could strictly follow the doctor's instructions and get back to test your eyes and do everything you can see protect your eyes. It is only a matter of time before you regain your lost vision.