The first is whether there are any functional factors, such as fatigue, poor rest, lack of sleep, etc. Then it is important to note if there are any localized diseases of the eyelids. Common disorders of eyelid elevation weakness include myasthenia gravis oculomotor type, which manifests as morning lightness and evening fatigue, and eyelid elevation effort can occur when blinking more often or when the gaze is fixed at the same level for a longer period of time. Some patients also have incomplete paralysis of the oculomotor nerve due to peripheral neuropathy from diabetes, or an intracranial aneurysm compressing the oculomotor nerve causing eyelid lifting effort.