What is the disappearance of ocular head reflex?

summary

Head eye reflex includes horizontal head eye reflex and vertical head eye reflex °， When doing vertical head eye reflex, you should quickly and sharply turn your head to the chest. The normal reaction is to turn the eyes in the opposite direction of the head. What is the disappearance of ocular head reflex? Let's talk about it

What is the disappearance of ocular head reflex?

Eye head reflex is one of the brainstem reflex, which includes horizontal and vertical head eye reflex. When doing horizontal head eye reflex, the head should be turned to the left and right rapidly °， When doing vertical head eye reflex, you should quickly and sharply turn your head to the chest.

The normal reaction is to turn the eyes in the opposite direction of the head. When the coma patients had this reflex (positive for doll's eyes), it was diencephalic lesion. With the deepening of coma, the oculomotor reflex disappeared, indicating that the lesion had involved the midbrain plane. The disappearance of head eye reflex is a diagnostic criterion of brain death. The head eye reflex disappears in brain death, and the eyes do not rotate when the head is rotated. The diagnosis can be made according to the above symptoms.

Slow reaction, disappearance of light reflex, decreased muscle tension, narcotic poisoning, weakness, dizziness, coma, clonus, disappearance of eye head reflex, delirium, sensory separation, head and neck movement limitation, neck pain, dysphagia when lifting neck, dyspnea, blurred consciousness, disappearance of eye head reflex

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