Convergent strabismus in a white Bengal tiger
Abstract
A white Bengal tiger was noted to have a convergent strabismus with poor vision since a cub. The tiger and a littermate with normal colouring and apparently normal eyes were anaesthetised for comparative ocular examination. A fundus typical of colour‐dilute cats and dogs was noted in the white tiger. Except for strabismus, no abnormalities were observed. Electroretinography showed similar retinal function in both tigers. Possible causes of strabismus considered were an adaptation to genetically determined abnormal visual pathways related to lack of pigment, abnormalities of the abducent nerves and mechanical restricting conditions of the medial rectus muscles.
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White tigers are known to suffer various abnormalities and congenital defects, including hip dysplasia, strabismus, cleft palates, reduced fertility, scoliosis, immune system dysfunction, UV-related skin conditions and poor dental health.
“White tigers, in particular, are known to suffer various abnormalities and congenital defects, including hip dysplasia, strabismus, cleft palates, reduced fertility, scoliosis, immune system dysfunction [74,75], UV-related skin conditions [39] and poor dental health [76].”
From Tiger colour morphs in zoos raise conservation and welfare concerns (2026) · cites this paper as [74]
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Tiger colour morphs in zoos raise conservation and welfare concerns
Erzinçlioğlu, T. S., Piaz, M. T., Chinpilas, T., Hunnestad, A. V., Godfrey, L., & Fourage, A. (2026) · Discover Animals · doi:10.1007/s44338-026-00163-5
- Authors
- BERNAYS, M., & SMITH, R.
- Venue
- Australian Veterinary Journal
- Publisher
- Wiley
- Published
- 1999-03
- Volume
- 77
- Issue
- 3
- Pages
- 152-155
- ISSN
- 0005-0423 (ISSN-L)
- 1751-0813
- OpenAlex
- W2148626953
- Cited by
- 9
- References
- 0
- Citations by year
- 2026: 2 · 2024: 1 · 2022: 1 · 2021: 1 · 2017: 1 · 2016: 1 · 2015: 1 · 2014: 1
- FWCI
- 0.00
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Australian Veterinary Journal (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Anhui University of Science and Technology
- Topics
- Health Sciences › Medicine › Pathology and Forensic Medicine › Ophthalmology and Eye Disorders
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Ocular Disorders and Treatments
- Health Sciences › Veterinary › Small Animals › Veterinary Medicine and Surgery
- Keywords
- esotropia, fundus examination, electroretinogram, retinal function, abducens nerve, medial rectus muscle, visual pathway abnormalities
- MeSH terms
- Animals, Carnivora, Diagnosis, Differential, Electroretinography, Esotropia, Female, Intraocular Pressure, Ophthalmoscopy
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