There are several reasons for your uneven eyelids. First of all, it may be that you did not get enough sleep or rest and have been working for too long a time, leading to eyelid oedema. If so, you should start having good rest allowing your eyes getting adequate relaxation. Eat more foods that are rich in vitamin A which is good for your eyes, such as carrots, animal livers and so on. Another reason for your uneven eyelids is that your eyes might get blepharoptosis whose symptoms are eyelids unable to lift and pupilla half-covered which could inhinder the eye sight. Blepharoptosis will not only affect the beautiful image of people's face, but also cause other disease to human beings. Diabetes mellitus, brainstem lesions, myasthenia gravis are all causes to blepharoptosis, therefore, you had better go to the doctor's for professional eye examination and then get in time medical treatment in case the condition get worse. In addition, if the blepharoptosis is inborn, a corrective procedure is necessary.