An eye with a swollen region of the conjunctiva (front view). An eye with a swollen region of the conjunctiva (mirror, side view). It is usually caused by allergies or viral infections, often inciting excessive eye rubbing.<unk>  is also included in the Chandler Classification system of orbital infections. If<unk>  has occurred due to excessive rubbing of the eye, the first aid to be given is a cold water wash for eyes. Other causes of<unk>  include: *Superior vena cava obstruction, accompanied by facial oedema *Hyperthyroidism, associated with exophthalmos, periorbital puffiness, lid retraction, and lid lag *Cavernous sinus thrombosis, associated with infection of the paranasal sinuses, proptosis, periorbital oedema, retinal haemorrhages, papilledema, extraocular movement abnormalities, and trigeminal nerve sensory loss *Carotid-cavernous fistula - classic triad of<unk> , pulsatile proptosis, and ocular bruit *Cluster headache *Trichinellosis *Systemic lupus erythematosus (SLE) *Angioedema *Acute glaucoma *Panophthalmitis *Orbital cellulitis *Gonorrheal conjunctivitis *Dacryocystitis *Spitting cobra venom to the eye *High concentrations of phenacyl chloride in chemical mace spray *Urticaria *Trauma *HSV Keratitis *Post surgical *Mucor *Rhabdomyosarcoma of the orbit
Chemosis
Inflammaging
Heat edema
Toxic granulation
Angiomatosis
Injection fibrosis
Thrombosis
Denudation 