Ptosis is a condition in which the pupil is half covered by the upper eyelid. It can be caused by a variety of reasons and is treated differently, such as ocular myasthenia gravis, which can be treated with oral medication such as neostigmine, and congenital developmental abnormalities, which usually require surgery. Ptosis is a condition in which the upper eyelid cannot be raised to its normal position, covering half of the pupil. There are many possible causes for this condition, including congenital developmental abnormalities, eye trauma, and ocular myasthenia gravis, which are treated differently. In the case of ocular myasthenia gravis, the symptoms can be improved by taking oral medication such as Neostigmine to strengthen the power to lift the upper eyelid. For trauma, it can be treated with oral neurotrophic medication, such as methylcobalamin tablets. For congenital developmental abnormalities or traumatic injuries, if conservative treatment with medication is ineffective, surgical treatment, such as levator palpebral muscle shortening, can be considered. If the pupil is half covered by the upper eyelid, the patient needs to go to the ophthalmology department of the hospital as soon as possible for examination, and the doctor will confirm the diagnosis and adopt the targeted treatment plan according to the condition.