Orbital and periorbital cellulitis are usually caused by infection of the sinuses near the nose. Insect bites or injuries that break the skin cause about one-third of these cellulitis infections. Orbital and periorbital cellulitis may also occur.

Periorbital cellulitis, which accounts for 85-90% of all ocular cellulitis, usually occurs in children under the age of five. Responsible for the remaining 10-15% of these infections, orbital cellulitis is most common in children over the age of five.

Orbital cellulitis. The correct answer is Periorbital edema.

People with periorbital cellulitis will have swollen, painful lids and redness, but probably no fever. About one child in five has a runny nose, and 20% have conjunctivitis. Conjunctivitis, also called pinkeye, is an inflammation of the mucous.

It is VERY contageous.