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. 2024 Sep;27(5):447-451.
doi: 10.1111/vop.13182. Epub 2024 Jan 3.

The Shih Tzu eye: Ophthalmic findings of 1000 eyes

Seyed Mehdi Rajaei  1 , Houman Faghihi  1 , Fatemeh Zahirinia  1
Affiliations

The Shih Tzu eye: Ophthalmic findings of 1000 eyes

Seyed Mehdi Rajaei et al. Vet Ophthalmol. 2024 Sep.

Abstract

Purpose: To evaluate the frequency of ophthalmic disorders in Shih Tzus.

Animals: Five hundred client-owned Shih Tzu dogs (1000 eyes).

Procedures: Medical records of 500 Shih Tzu dogs were reviewed and ophthalmic examination data were collected and analyzed.

Results: In total, out of 1000 eyes, 964 (96.4%; OD: 480 eyes, OS: 484 eyes) had at least one ophthalmic abnormality, and only 36 eyes (3.6%; OD: 20 eyes, OS: 16 eyes) were diagnosed as normal. A total of 1375 individual ophthalmic abnormalities were observed in 964 diseased eyes. Fifty-nine different unique diagnoses were made in the study population, and only three conditions [medial canthal entropion (10.4% of eyes; bilateral in 10.2% of dogs), caruncular trichiasis (21.1% of eyes; bilateral in 20.2% of dogs), and reduced tear film breakup time (17.6% of eyes; bilateral in 17.4% of dogs)] affected 49.1% of the eyes.

Conclusion and clinical relevance: Findings suggested that the most prevalent disorders for the Shih Tzus were hairy caruncle, reduced TBUT, medial canthal entropion, keratoconjunctivitis sicca, pigmentary keratitis, lagophthalmos, and mature cataract.

Keywords: Shih Tzu; brachycephalic; dry eye disease; eye; ocular; tear film.

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References

REFERENCES

    1. Ekenstedt KJ, Crosse KR, Risselada M. Canine Brachycephaly: anatomy, pathology, genetics and welfare. J Comp Pathol. 2020;176:109‐115. doi:10.1016/j.jcpa.2020.02.008
    1. Collett BR, Leroux BG, Wallace ER, Gallagher E, Shao J, Speltz ML. Head shape at age 36 months among children with and without a history of positional skull deformation. J Neurosurg Pediatr. 2018;21(3):204‐213. doi:10.3171/2017.7.PEDS16693
    1. Viñas M, Maggio F, D'Anna N, Rabozzi R, Peruccio C. Meibomian gland dysfunction (MGD), as diagnosed by non‐contact infrared Meibography, in dogs with ocular surface disorders (OSD): a retrospective study. BMC Vet Res. 2019;15(1):443. doi:10.1186/s12917-019-2203-3
    1. Ambrósio CE, Packer RMA, Hendricks A, Burn CC. Impact of facial conformation on canine health: corneal ulceration. PLoS One. 2015;10(5):e0123827. doi:10.1371/journal.pone.0123827
    1. Shih Tzu. Accessed December 10, 2022. https://www.akc.org/dog‐breeds/shih‐tzu/