Along with these symptoms, patients typically have redness and swelling of the eyelid, pain, discharge, inability to open the eye, occasional fever and lethargy.

Complications include hearing loss, blood infection, meningitis, cavernous sinus thrombosis, cerebral abscess, and blindness.

[1][2] It is possible that children experience more severe complications due to their immature immune system and because they have thinner orbital bones, which makes the infection easier to spread.

Staphylococcus aureus, Haemophilus influenzae type b, Moraxella catarrhalis, Streptococcus pneumoniae, and beta-hemolytic streptococci are bacteria that can be responsible for orbital cellulitis.

[8][5] A variety of pathologies and diseases can present similarly to orbital cellulitis, including:[9] Immediate treatment is very important, and it typically involves intravenous (IV) antibiotics in the hospital and frequent observation (every 4–6 hours).