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Abnormal protrusion of the eyeball from the orbit.



protrusion of the eyeball. Exophthalmos is most commonly caused by diffuse toxic goiter. It may also be caused by a tumor in the eyeball or adjacent regions, trauma of the eyeball, thrombosis of the orbital veins, and inflammatory diseases. If pronounced, exophthalmos may be accompanied by limited mobility of the eyeball and impairment of vision. Therapy is based on the cause of the condition.

References in periodicals archive ?
On admission to our hospital, physical examination revealed severe jaundice, tremor and exophthalmia.
The signs and symptoms of hyperthyroidism can include nervousness, heat intolerance, tachycardia, palpitations, goiter, weight loss, thyromegaly, exophthalmia, increased appetite, nausea and vomiting, sweating, and tremor.
Some fry fish show sign such as lethargy, skin darkness, exophthalmia, abdomen distended and abnormal swimming.
Exophthalmia in one case of present study was managed by topical application of ophthalmic antiseptic.
The craniofacial and extremity abnormalities seen in this syndrome include cleft lip and palate, craniosynostosis, microcephalia, silver-coloured or sparse hair, micrognathia, ocular hypertelorism, exophthalmia, eyelid coloboma, corneal blurring, cataract, mid-facial capillary haemangioma, ear malformations, low-set ears, maxillary protrusion, malar hypoplasia, hypoplastic mandible, nasal hypoplasia and short neck bilateral symmetrical tetra-phocomelia or hypomelia, brachydactyly/oligodactyly.
The clinical presentation of reported cases of retrobulbar neoplasia includes exophthalmia, dislocation of the palpebral fissure, and epiphora, with affected eyes described as visual and intact.
Clinical signs and pathological manifestations are similar to streptococcosis and consist of exophthalmia, muscular haemorrhages, acute branchitis, suppurative inflammation in the eyes and necrosis of the spleen and kidney (Plumb, 1999).
She was a classic case of Graves' disease with exophthalmia.
A marked rise in body temperature, reaching 40-42[degrees]C, is followed by lethargy, lacrimation, nasal discharge, exophthalmia and swelling of superficial lymph nodes; hemolytic anemia is among the characteristic features of tropical theileriosis (Fartashvand et al.
Onchocerca lupi, known to infest dog eyes, inducing an acute or chronic ocular disease characterized by conjunctivitis, photophobia, lacrimation, discharge, and exophthalmia.
In physoclists, this can cause overexpansion of the swim bladder and resultant injuries to multiple organs (barotrauma), including severe exophthalmia ("pop-eye").
The bird was presented with orbital distension and exophthalmia of the left eye.