Okay, let's tackle this question about orbital cellulitis. The user provided the correct answer but didn't include the options. Hmm, maybe they just wanted a general explanation. But wait, the user mentioned that the correct answer is one of the options A-D, but since the options are missing, I need to figure out what the question is testing.

Orbital cellulitis is a serious infection of the orbital tissues, right? The key here is to differentiate it from periorbital cellulitis. So the question is asking which statement is false about orbital cellulitis. Let me think about the characteristics of orbital cellulitis.

First, the core concept: Orbital cellulitis is a deep infection involving the orbital septum, often leading to visual and neurological complications. It's more severe than periorbital cellulitis, which is superficial. The core concept here is the distinction between the two and the clinical features of orbital cellulitis.

Now, the correct answer. The false statement could be about symptoms, treatment, or complications. Let's consider common false statements. For example, a false statement might be that orbital cellulitis is a superficial infection (which would be periorbital). Or maybe that it's treated with topical antibiotics instead of IV. Or perhaps it's not associated with systemic symptoms.

Looking at the options, if one of them says orbital cellulitis is self-limiting, that's false. It requires IV antibiotics. Another false statement could be that it doesn't cause proptosis or ophthalmoplegia. Since orbital cellulitis typically presents with these features, that would be incorrect.

The clinical pearl here is that orbital cellulitis is a medical emergency requiring prompt treatment to prevent vision loss. Also, differentiating it from periorbital cellulitis is crucial—age is a factor, as children under 5 are more prone to periorbital, while older kids and adults are at risk for orbital.

So, if an option says that orbital cellulitis is common in children under 5, that's false because periorbital is more common in that age group. Alternatively, if an option states that it's not associated with fever, that's also false since systemic symptoms are common.

Putting this all together, the false statement would likely be one that confuses orbital with periorbital in terms of age group, symptoms, or treatment. The correct answer would be the option that incorrectly states something about the disease.

**Core Concept**
Orbital cellulitis is a severe infection of the retroseptal orbital tissues, often secondary to sinusitis. It differs from periorbital (preseptal) cellulitis by involving deeper structures, leading to visual and neurological complications like proptosis, ophthalmoplegia, and vision loss. Diagnosis requires imaging (CT/MRI) and systemic antibiotic therapy.

**Why the Correct Answer is Right**
The false statement is likely that orbital cellulitis is **not associated with vision-threatening complications**. Orbital cellulitis causes inflammation and abscess formation, compressing the optic nerve and extraocular muscles. This leads to proptosis, restricted eye movements, and potential optic neuropathy. Prompt IV antibiotics and surgical drainage (if abscess is present) are critical to prevent blindness.

**Why Each Wrong Option is Incorrect**
**Option A:** If it states "Orbital cellulitis is a superficial infection," this is incorrect because it involves

✓ Correct Answer: B. Involves sympathetic plexus