why do comatose patients with cerebral infarction shed tears?

the tears of comatose patients with cerebral infarction are just a neurological reflex, because comatose patients with cerebral infarction do not have the ability to close or open their eyes voluntarily. some people are in a semi-open state. when they are semi-open, the person's cornea will be exposed to the air for a long time and the cornea will dry out.

people have a skill. when a person is normally awake, he or she relies on constant blinking to keep the cornea moist and secretes tears to keep the cornea moist. when a person is in a coma, the eyes no longer have such autonomous movements. the human body has an instinctive signal. when the cornea is dry, it will secrete more tears to keep the cornea moist. this is a normal neurological reflex and physiological reflex.

(warm reminder: medical science sharing. this content does not represent face-to-face consultation. if you feel unwell, please seek medical treatment as soon as possible.)