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Presumptive keratoglobus in a great horned owl (Bubo virginianus)

  • Author(s): Lau, RK
  • Moresco, A
  • Woods, SJ
  • Reilly, CM
  • Hawkins, MG
  • Murphy, CJ
  • Hollingsworth, SR
  • Hacker, D
  • Freeman, KS
  • et al.

Published Web Location

http://onlinelibrary.wiley.com/doi/10.1111/vop.12413/full
No data is associated with this publication.
Abstract

© 2016 American College of Veterinary Ophthalmologists A juvenile to young adult, male, great horned owl (Bubo virginianus,GHOW) was presented to the wildlife rehabilitation hospital at Lindsay Wildlife Museum (WRHLWM) due to trauma to the right patagium from barbed wire entanglement. On presentation, both corneas were irregular, dry, and no movement of the third eyelid was noted. A severe corneal enlargement/globoid appearance was the predominant ophthalmic feature. The fundus was normal in both eyes (OU). Over the course of several days, both corneas developed edema combined with further dessication at the ocular surface associated with diffuse dorsal fluorescein stain uptake. Repeated ophthalmic examinations found normal intraocular pressures and an inability to move the third eyelid over the enlarged corneas. The bird was deemed nonreleasable due to severe wing damage and poor prognosis associated with eye abnormalities and was humanely euthanized. Postmortem CT, enucleation, and histopathology were performed to evaluate the ocular anatomical abnormality and confirm the suspected diagnosis of keratoglobus. This GHOW represents the first reported case of presumptive keratoglobus in a raptor.

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