SIGNS and SYMPTOMS The most obvious sign of Ptosis is a drooping eyelid.

体征和症状上睑下垂最明显的症状是眼睑下垂。

So forget about long nights, with eyelids drooping over pages and pages of text, scientific research has expressed quite clearly that that isn't the way to study smart.

所以说，忘记那些漫漫长夜里看着一页一页的文字，眼皮不时打架的日子吧，科学研究已明确证明，这并非明智的学习方法。

Myasthenia gravis preferentially affects young women or older men and commonly affects the extraocular muscles leading to eyelid drooping or double vision, but it might affect any skeletal muscle.

年轻女性和老年男性容易患重症肌无力，最常见的症状是眼外肌受累导致复视或眼睑下垂，还会影响其他骨骼肌细胞。