Orbital Cellulites

It is an acute infection of the tissues surrounding directly to the eye, including the eyelids, eyebrows and cheek.
Causes

Orbital cellulite is a dangerous infection with potentially serious complications.

A sinus infection bacterium (usually Homophobes influenza) usually causes this condition in children. Orbital cellulite due to this bacterium used to be much more common in children up to 6-7 years; however, this infection is now uncommon due to HiB vaccine (Homophobes influenza B). see here
The bacteria Staphylococcus aureus, Streptococcus pneumonia, and streptococci may also cause orbital cellulite.

Orbital cellulite in children infection can worsen very quickly, and can lead to blindness, so immediate medical attention is required.
Symptoms

Orbital cellulite symptoms may include:

Painful inflammation of the upper and lower eyelid, and possibly the cheek and eyebrow
Wiggly eyes
Decreased vision
Eye pain, especially when moving the eye
Fever, usually 102° F (38.9 ° C) or higher
General feeling of discomfort
Difficult or painful eye movements
Bright, red or purple eyelid

Tests and examinations

Tests commonly include:

CBC (complete blood count)
Blood culture, read this
Spinal tap in extremely ill children

Other tests may include:

X-ray of the sinuses and surrounding area
CT scan or MRI of the sinuses and orbit
Cultivation of the flow of the eye and nose
Throat culture, click here