I have occidental eyelids and my left eye lid has been significantly higher than the other one all my life. I had been using generic eyelid tape for a year with no results before I managed to find Opti-fold. I was skeptical at first but I'm so glad I bought it. I started using it just over 2 months ago and the problem is beginning to fix itself. In a few months time it looks as though it will be permanently fixed.