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Animal / preclinicalAnimals : an open access journal from MDPI · 2026

Glaucoma in a Siberian Tiger ( Panthera tigris altaica ) Maintained Under Human Care: A Case Report.

Gábor Lorászkó, András Dobos, András Dobos … László Ózsvári

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OphthalmologyAnimal / preclinical

Case report: Siberian tiger had advanced glaucoma with markedly elevated eye pressure.

Glaucoma in a Siberian Tiger ( Panthera tigris altaica ) Maintained Under Human Care: A Case Report.

Gábor Lorászkó … László Ózsvári

Animals : an open access journal from MDPI · 2026

Background

Primary open-angle glaucoma (primary open-angle glaucoma) is rarely recognized in large felids, yet it may cause severe vision loss and chronic pain.

Purpose

This case report presents the ophthalmological evaluation of a four-year-old Siberian tiger ( Panthera tigris altaica ) maintained under human care that exhibited signs of visual impairment and altered sensorium.

48-52 mmHg

Results

48-52 mmHg

Pressure inside both eyes was severely elevated, confirming advanced, irreversible glaucoma.

More results

Pupillary light reflexes were absent, while fluctuations in pupil size were attributed to ketamine.

“

Conclusion

This case highlights the need for accessible on-site or referral-based ophthalmic diagnostics and surgical capacity in zoo settings.

Post

Glaucoma in a Siberian Tiger ( Panthera tigris altaica ) Maintained Under Human Care: A Case Report.

Case report: Siberian tiger had advanced glaucoma with markedly elevated eye pressure.

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