Normal IOP
Orbital cellulitis<unk> 
Orbital tumor
Increased IOP
Retrobulbar abscess
Retrobulbar emphysema
Retrobulbar hemorrhage
Ocular compartment syndrome
Orbital tumor
Orbital cellulitis<unk> 
Orbital tumor
Retrobulbar abscess
Retrobulbar emphysema
Retrobulbar hemorrhage
Ocular compartment syndrome
Orbital tumor
Periorbital cellulitis/erysipelas
Dacryocystitis (lacrimal duct)
Dacryocele/Dacryocystocele
Dacryostenosis
Dacryoadenitis (lacrimal gland)
Allergic reaction
Nephrotic Syndrome (pediatrics)
Blepharitis (crusts)
Chalazion (meibomian gland)
Stye (hordeolum) (eyelash folicle)
Subperiosteal abscess
Orbital abscess
Cavernous sinus thrombosis
Conjunctivitis
Contact dermatitis
Herpes zoster
Herpes simplex
Sarcoidosis
Granulomatosis with polyangiitis
Orbital pseudotumor
Normal IOP
Orbital cellulitis
Orbital fracture
Orbital compartment syndrome
Orbital tumor
Periorbital cellulitis
Increased IOP