Question

What is the most likely complication of the condition shown in the image below?

• A. Cataract
• B. Exposure Keratitis
• C. Difficulty in eye movemen
• D. Glaucoma

Answer 1

The Correct Option is B

The condition shown in the image is most likely a case of facial nerve palsy, commonly known as Bell's palsy. This condition is characterized by the weakness or paralysis of the muscles on one side of the face due to dysfunction of the facial nerve (cranial nerve VII).

The facial nerve is responsible for controlling the muscles of facial expression, including the ability to close the eyelids completely. When the facial nerve is affected, patients often have difficulty closing their eye on the affected side. This can lead to inadequate eyelid closure, thereby causing the cornea to be exposed to external elements like dust, wind, and irritants.

Now, let's consider the most likely complication:

• Cataract: A cataract is a clouding of the eye's lens and is unrelated to inadequate eyelid closure.
• Exposure Keratitis: This is inflammation of the cornea caused by exposure due to the eye not closing properly. This is a direct result of facial nerve palsy.
• Difficulty in eye movement: This is more relevant to cranial nerve III, IV, or VI palsies rather than cranial nerve VII.
• Glaucoma: Glaucoma is primarily related to increased intraocular pressure and is not associated with eyelid function.

Based on the above explanations, the correct answer is Exposure Keratitis. This occurs due to the inability to close the eyelids properly, leading to corneal dryness and ulceration, necessitating protective measures like using artificial tears or taping the eyelids.