Well, yes, blephariti can cause puffy eyes, in some degree. Generally speaking, blephariti is inflammation which occurs in the part of the eyelid. And also, Blephariti will occur if the small oil glands near the base of the eyelashes don't work properly, with a bacterial infection or some complication of a skin condition. At that moment, the eyes can become red, irritated and itchy. In some cases, it can also lead to puffy eyes and blurred vision. In other words, we can say that it is related to the irritation. So just be careful about the dirty things around you, and try to protect your eyes from them.
