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Case Report


A-scan Biometry, Phacoemulsification and Foldable Intraocular Lens Implantation in a Young Orangutan (Pongo pygmaeus)

Aree Thayananuphat, Natthanet Sritrakoon, Winyu Karntip, Sirirat Niyom, Susadee Khemton, Panuwat Pakpiboon, Kant Wongsirodkul, Kanyarat Arunsri.


Cited By:2

Abstract
Background: Cataracts are the major cause of visual impairment in animals which can be curable by surgical management. Phacoemulsification is the standard technique for cataract treatment that is applied to almost all species with a high success rate.
Case Description: A 2-year-old intact female orangutan (Pongo pygmaeus) was presented with bilateral opacity of the lenses for two weeks. Ophthalmic examination revealed mature cataract OU. Ocular biometry measurements using A-scan ultrasonography for appropriate IOL refractive power calculation was performed. Electroretinography was applied to ensure intact retinal function. The orangutan underwent phacoemulsification OU and +24 diopter intraocular lens implantation OS to restore vision. IOL implantation was not performed OD because of a posterior capsular tear. Retinoscopy at three week postoperatively revealed +2.0 diopters OS. The outcome of the cataract surgery was successful during three years follow-up. The orangutan lived with other orangutans and was alert with normal behavior such as catching food, climbing trees, and swinging hand over hand from one branch to another.
Conclusion: Cataract surgery with phacoemulsification OU and adjusted IOL implantation OD was successful with few complications in this orangutan. Vision was restored with normal behavior, even though an adjusted IOL was inserted in only one eye.

Key words: biometry, cataract, orangutan, phacoemulsification, Pongo pygmaeus


 
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How to Cite this Article
Pubmed Style

Thayananuphat A, Sritrakoon N, Karntip W, Niyom S, Khemton S, Pakpiboon P, Wongsirodkul K, Arunsri K. A-scan Biometry, Phacoemulsification and Foldable Intraocular Lens Implantation in a Young Orangutan (Pongo pygmaeus). Open Vet J. 2021; 11(1): 121-127. doi:10.4314/ovj.v11i1.18


Web Style

Thayananuphat A, Sritrakoon N, Karntip W, Niyom S, Khemton S, Pakpiboon P, Wongsirodkul K, Arunsri K. A-scan Biometry, Phacoemulsification and Foldable Intraocular Lens Implantation in a Young Orangutan (Pongo pygmaeus). https://www.openveterinaryjournal.com/?mno=15322 [Access: May 02, 2024]. doi:10.4314/ovj.v11i1.18


AMA (American Medical Association) Style

Thayananuphat A, Sritrakoon N, Karntip W, Niyom S, Khemton S, Pakpiboon P, Wongsirodkul K, Arunsri K. A-scan Biometry, Phacoemulsification and Foldable Intraocular Lens Implantation in a Young Orangutan (Pongo pygmaeus). Open Vet J. 2021; 11(1): 121-127. doi:10.4314/ovj.v11i1.18



Vancouver/ICMJE Style

Thayananuphat A, Sritrakoon N, Karntip W, Niyom S, Khemton S, Pakpiboon P, Wongsirodkul K, Arunsri K. A-scan Biometry, Phacoemulsification and Foldable Intraocular Lens Implantation in a Young Orangutan (Pongo pygmaeus). Open Vet J. (2021), [cited May 02, 2024]; 11(1): 121-127. doi:10.4314/ovj.v11i1.18



Harvard Style

Thayananuphat, A., Sritrakoon, . N., Karntip, . W., Niyom, . S., Khemton, . S., Pakpiboon, . P., Wongsirodkul, . K. & Arunsri, . K. (2021) A-scan Biometry, Phacoemulsification and Foldable Intraocular Lens Implantation in a Young Orangutan (Pongo pygmaeus). Open Vet J, 11 (1), 121-127. doi:10.4314/ovj.v11i1.18



Turabian Style

Thayananuphat, Aree, Natthanet Sritrakoon, Winyu Karntip, Sirirat Niyom, Susadee Khemton, Panuwat Pakpiboon, Kant Wongsirodkul, and Kanyarat Arunsri. 2021. A-scan Biometry, Phacoemulsification and Foldable Intraocular Lens Implantation in a Young Orangutan (Pongo pygmaeus). Open Veterinary Journal, 11 (1), 121-127. doi:10.4314/ovj.v11i1.18



Chicago Style

Thayananuphat, Aree, Natthanet Sritrakoon, Winyu Karntip, Sirirat Niyom, Susadee Khemton, Panuwat Pakpiboon, Kant Wongsirodkul, and Kanyarat Arunsri. "A-scan Biometry, Phacoemulsification and Foldable Intraocular Lens Implantation in a Young Orangutan (Pongo pygmaeus)." Open Veterinary Journal 11 (2021), 121-127. doi:10.4314/ovj.v11i1.18



MLA (The Modern Language Association) Style

Thayananuphat, Aree, Natthanet Sritrakoon, Winyu Karntip, Sirirat Niyom, Susadee Khemton, Panuwat Pakpiboon, Kant Wongsirodkul, and Kanyarat Arunsri. "A-scan Biometry, Phacoemulsification and Foldable Intraocular Lens Implantation in a Young Orangutan (Pongo pygmaeus)." Open Veterinary Journal 11.1 (2021), 121-127. Print. doi:10.4314/ovj.v11i1.18



APA (American Psychological Association) Style

Thayananuphat, A., Sritrakoon, . N., Karntip, . W., Niyom, . S., Khemton, . S., Pakpiboon, . P., Wongsirodkul, . K. & Arunsri, . K. (2021) A-scan Biometry, Phacoemulsification and Foldable Intraocular Lens Implantation in a Young Orangutan (Pongo pygmaeus). Open Veterinary Journal, 11 (1), 121-127. doi:10.4314/ovj.v11i1.18