Corneal Reflex | Procedure & Results Interpretation

The video tutorial explains the corneal reflex, highlighting its distinction from other superficial reflexes due to its involvement of cranial nerves, specifically the trigeminal and facial nerves. It details the reflex loop, describing how sensory input from the cornea is processed and results in bilateral blinking. The testing procedure involves using a sterile Q-tip to stimulate the cornea and observe the reflex. The video also covers how lesions in the trigeminal or facial nerves affect the reflex, leading to either no blinking or unilateral blinking, depending on the location of the lesion.

What is the primary difference between the corneal reflex and the previous three superficial reflexes?

Which cranial nerves are involved in the corneal reflex loop?

Describe the process that occurs when the cornea is stimulated.

What is expected to happen when one cornea is touched?

How do you assess the presence of the corneal reflex?

Explain the significance of bilateral blinking in the context of the corneal reflex.

What indicates an abnormal corneal reflex when stimulating the cornea?