Bilateral phacoemulsification and intraocular lens implantation in a great horned owl

Renee T. Carter, Christopher J Murphy, Charles M. Stuhr, Kathryn A. Diehl

Research output: Contribution to journalArticlepeer-review

25 Scopus citations


Case Description - A great horned owl of estimated age < 1 year that was captured by wildlife rehabilitators was evaluated because of suspected cataracts. Clinical Findings - Nuclear and incomplete cortical cataracts were evident in both eyes. Ocular ultrasonography revealed no evidence of retinal detachment, and electroretinography revealed normal retinal function. Treatment and Outcome - For visual rehabilitation, cataract surgery was planned and intraocular lens design was determined on the basis of values obtained from the schematic eye, which is a mathematical model representing a normal eye for a species. Cataract surgery and intraocular lens placement were performed in both eyes. After surgery, refraction was within -0.75 diopters in the right eye and -0.25 diopters in the left eye. Visual rehabilitation was evident on the basis of improved tracking and feeding behavior, and the owl was eventually released into the wild. Clinical Relevance - In raptors with substantial visual compromise, euthanasia or placement in a teaching facility is a typical outcome because release of such a bird is unacceptable. Successful intraocular lens implantation for visual rehabilitation and successful release into the wild are achievable.

Original languageEnglish (US)
Pages (from-to)559-561
Number of pages3
JournalJournal of the American Veterinary Medical Association
Issue number4
StatePublished - Feb 15 2007
Externally publishedYes

ASJC Scopus subject areas

  • veterinary(all)


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