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

体征上睑下最明显的是眼睑下。

Any disease affecting them would lead to ptosis or drooping of upper eyelid.

任何影响他们的疾病都会导致上睑下。

Aponeurotic Also known as senile Ptosis in which there is age-related atrophy of the Levator muscle Aponeurosis.

腱膜性睑下也被称为老年性上睑下，这是一种与年龄相的提上睑肌腱膜萎缩。

Conjunctival and muller resection, in mild ptosis, achieves 2-3 mm elevation of eyelid.

结膜穆勒肌切除，对于轻度上睑下，可使眼睑抬高 2-3 mm。

Levator resection, in moderate to severe ptosis, usually done in congenital ptosis, achieves 5 mm elevation of eyelid.

提上睑肌缩短术，通常适用于先天性的中到重度的上睑下，可以达到眼睑上提 5 mm。

A child with Ptosis may tip their head back, lift up their chin, or raise their eyebrows to try to see better.

有上睑下的孩子可能会仰起头，抬起下巴，或扬起眉毛，试图看得更清楚。

Horner syndrome involves miosis or constriction of the pupils, ptosis or the drooping of the eyelid, and anhidrosis which is an inability to sweat in the face.

Horner综合征包括瞳孔缩小、上睑下以及面部无汗。

When this nerve is injured, it causes Horner's syndrome, which is a triad of three symptoms: meiosis or constricted pupil, ptosis (a droopy eyelid), and anhidrosis (the inability to sweat).

T1受损会引起Horner综合征，由一组三联征构成——瞳孔缩小、上睑下、无汗。

Acquired include 1. Neurogenic Basically, there is an innervation defect of the muscles, and because nerves supplying the muscles are not working, the muscles will be unable to work properly.

后天的包括1. 神经源性上睑下基本上是因为肌肉有神经支配缺陷，由于供应肌肉的神经不起作用，肌肉就不能正常工作。

GRADES Ptosis could be mild (up to 2 mm drooping of eyelid) , moderate (up to 3 mm drooping of eyelid) , or severe (4 mm or more drooping of eyelid) depending upon the amount of Ptosis present.

等级根据上睑下的程度不同，上睑下可分为轻度（眼睑下 2 毫米）、中度（眼睑下 3 毫米）或严重（眼睑下 4 毫米以上）。

If a pancoast tumor pushes on or invades these sympathetic nerves, it can cause miosis - a small or constricted pupil, ptosis - a droopy eyelid, and anhydrosis - a failure to sweat, all on the ipsilateral, or same side, of the face as the nerve.

如果肺上沟瘤向上挤压或侵袭交感神经，则会出现瞳孔缩小、上睑下、无汗等，这些都发生于神经支配的同侧面部。