Ptosis is a (drooping) of the upper or lower eyelid. The drooping may be worse after being awake longer, when the individual's muscles are tired. If severe enough and left untreated, the drooping eyelid can cause other conditions, such as amblyopia or astigmatism. This is why it is especially important for this disorder to be treated in children at a young age, before it can interfere with vision development. Please consult an opthalmologist for the best remedy.