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Prolapse of the eye (proptosis) due to trauma in a Maltese dog[1]

Exophthalmos refers to an enlarged orbital space or enlarged globe.

This condition can occur as a non-symptomatic hereditary trait in certain breeds such as the Pug and Pekingese due to conformational breeding traits, characterized by eyes proportionally larger than the face.

Diseases associated with exophthalmos include:


  1. Merck Veterinary Manual
  2. Quizlet
  3. Hecht S et al (2011) Clinical and imaging findings in five dogs with intracranial blastomycosis (Blastomyces dermatiditis). J Am Anim Hosp Assoc 47(4):241-249
  4. Denk N et al (2012) A retrospective study of the clinical, histological, and immunohistochemical manifestations of 5 dogs originally diagnosed histologically as necrotizing scleritis. Vet Ophthalmol 15(2):102-109
  5. Mathes RL et al (2012) Calvarial hyperostosis presenting as unilateral exophthalmos in a female English Springer Spaniel. Vet Ophthalmol 15(4):263-270