Diagnosis of corneal reflex

summary

There is an old saying that the eyes are the windows of the soul. So the cornea is the most important thing in this "window". The cornea is a transparent membrane located in the anterior wall of the eyeball. The thickness of the cornea varies from part to part, and the central part is the thinnest. So how is corneal reflex disappear to return a responsibility? The corneal reflex is that the examinee looks inward and upward, and then the doctor touches the patient's cornea from the outer edge of the cornea with a fine cotton swab. If the corneal reflex does not disappear, the eyelids of the subjects close quickly, which is called direct corneal reflex. At the same time, the other eye also reacts at the same time, which is called indirect corneal reflex

Diagnosis of corneal reflex

First, the disappearance of corneal reflex may be different from the site of trigeminal nerve injury. First, when the trigeminal nerve is injured above the semilunar ganglion, the patient may have the general loss of sensation of the skin on the affected side of the head and face and the mucous membrane of the tongue, mouth and nasal cavity; it's terrible that the "touch" has disappeared. And the side of the masticatory muscle paralysis, open mouth when the jaw will be partial.

Second, the trigeminal nerve is damaged below the semilunar ganglion. When the corneal reflex disappears, the maxillary nerve may be damaged. So that's the trouble! Because the lower eyelid and upper lip skin, maxillary teeth, gums and hard palate mucosa sensory disorders; may also be mandibular nerve damage, this will lead to mandibular teeth, gums and tongue general sensory disorders. Terrible, I can't eat any rice!

Third: finally, the diagnosis method of the loss of corneal reflex is the loss of light reaction. In popular terms, it is the change of pupil's disappearance of light reflection. That is, when a flashlight is used to irradiate the pupil, the change is very small, but the pupil enlargement is not obvious after the light source is removed. If the pupil does not respond to the light reflex, it is the disappearance of the light response

matters needing attention

Every part of the body is very important. Eyes, in particular, are a way for us to understand and perceive the world. Usually we should take good care of our eyes. Don't play with electronics for a long time. If you have any discomfort, go to see a doctor. The disappearance of corneal reflex is really a terrible thing. It's not just the eyes, it's related to other parts!