Nowadays is an era of face, in order to keep up with the trend of the times, many candidates will consult the matter of double eyelids, but will need this situation: the first sentence given by the doctor is that your eyes can not do blepharoplasty, you need to do ptosis surgery, at this time many people may not understand, why can not be done? What is this situation? Double eyelid surgery, also called blepharoplasty, is a surgical procedure that changes the tissue structure of the eyelid and reshapes the shape of the eyelid so that a new crease of the upper lid is formed. It can make the eyes more vivid, and in some cases, for small eyes, it can also make the eyes look bigger and refreshed after it is done. Compared to double eyelid surgery, ptosis surgery is much more complicated. First of all, ptosis is a kind of pathological loss of function, due to the weakening or loss of the function of the levator muscle, resulting in the patient’s usual look at things when the eyelid margin covers part of the pupil or all of the pupil, and can’t expand the pupil range through the eyelid’s own strength, but need to use the frontalis muscle’s contraction or the tilt of the head to make the field of vision bigger, and over time, the frontal wrinkles will deepen. Over time, the wrinkles on the forehead deepen while the eyebrows are raised, and some may even affect the neck, causing deformities of the neck muscles and cervical vertebrae, which not only affects the vision, but also affects the appearance of the eyes, making them more lifeless and old. Ptosis can be unilateral or bilateral. Unilateral ptosis is more obvious and can be seen, usually manifested as one eye is large and the other is small. Mild bilateral ptosis is not easy to detect, just like the case at the beginning, you don’t even know it, and you are told that you have ptosis only when you take action to do double eyelids. Severe ptosis can be easily seen and is a matter of great concern to the patient. If left unchecked, it can become more and more serious, and may even lead to blurred vision, affecting daily life.