Büşra KİBAR KURT, Ali BELGE, Murat SARIERLER

Holstein Buzağılarda Midriyatik Ajan Kullanmadan İnfrared Kamerayla Fundus Görüntülenmesi

Çalışmanın amacı sağlıklı Holstein buzağıların oküler fundusunun saha şartlarında görüntülenmesidir. Sağlıklı 17 Holstein buzağının 34 fundusu midriatiklerin kullanımını gerektirmeyen, hayvanlar için özel olarak üretilmiş bir fundus kamerası ile incelendi. Tüm buzağılarda yeşil sarı tapetal bölge baskın, optik disk ovaldi. Merkezden çıkan primer arter ve toplardamar sayısı 4-5 arasında değişmekteydi. Vasküler desen holanjiyotik olarak kaydedildi. Tüm buzağılarda diskin ortasında gri nokta şeklinde hyaloid arter kalıntısı (Bergmeister’s papilla) tespit edildi. Tapetal olmayan bölgenin homojen, kahverengi-siyah renkte ve koroid damar yapısından zengin olduğu kaydedildi. Çiftlik hayvanlarında bazı sistemik ve kalıtsal hastalıkların tanısında oküler fundusun görüntülenmesi çok önemlidir. Ancak çiftlik hayvanlarında sürü bazlı oftalmoskopik tarama saha koşullarında oldukça zordur. Portatif fundus kamerası ile hastaların saha şartlarında hastaneye getirilmeden kolaylıkla fundus muayenesi yapılabilmiştir. Bu çalışmada sağlıklı Holstein buzağıların normal oftalmoskopik fundus görüntüleri sunulmuştur.

Anahtar Kelimeler:

calf, ocular fundus, retina, Fundus photography

Fundus Imaging via Infrared Camera without Mydriatics in Holstein Calves

This study aimed to record the ocular fundus images of healthy Holstein calves under field conditions. The fundus of 34 eyes of healthy 17 Holstein calves was examined with a fundus camera, which does not require mydriatics, as it has been designed especially for animals and provides imaging with infrared light. The findings showed that the green-yellow tapetal zone was dominant in all calves, the optic disc was oval, and the number of primary arteries and veins originating from the center varied between 4 and 5. The vascular pattern was holangiotic. A remnant of the hyaloid artery (Bergmeister’s papilla) was detected as a gray dot in the middle of the disc. It was noted that the non-tapetal area was homogeneous, brown-black, and rich in choroidal vascular structure. Imaging the ocular fundus is essential in diagnosing some systemic and hereditary diseases in farm animals. However, herd-based ophthalmoscopic screening in farm animals is difficult under field conditions. By using this portable fundus camera, fundus examination can be performed easily under field conditions without taking the animals to the hospital. The standard ophthalmoscopic fundus images of healthy Holstein calves presented in this study will contribute to the literature.

Keywords:

calf, ocular fundus, Fundus photography, Retina,

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Aksoy Ö, Güngör E, Kirmizibayrak T, Şaroǧlu M, Özaydin I, and Yayla S 2011: Identification of normal retina’s variations in Kars Shepherd Dogs via fundoscopic examination Kafkas Univ Vet Fak Derg, 17(2), 167–170
Çatalkaya E, and Özaydin İ 2019: Kars Bölgesinde Yeni Doğan Buzağılarda Retinal Anormalite İnsidensinin Fundoskopik Muayene ile Belirlenmesi Dicle Üniversitesi Vet Fakültesi Derg, 12(1), 12–18
Galán A, Martín-Suárez EM, and Molleda JM 2006: Ophthalmoscopic characteristics in sheep and goats: Comparative study J Vet Med Ser A Physiol Pathol Clin Med, 53(4), 205–208 https://doi.org/10.1111/j.1439-0442.2006.00811.x
He X, Li Y, Li M, Jia G, Dong H, Zhang Y, He C, Wang C, Deng L, and Yang Y 2012: Hypovitaminosis A coupled to secondary bacterial infection in beef cattle BMC Vet Res, 8(1), 222 https://doi.org/10.1186/1746-6148-8-222
Irby NL, and Angelos JA 2018: Rebhun’s Diseases of Dairy Cattle In Rebhun’s Diseases of Dairy Cattle Elsevier https://doi.org/10.1016/C2013-0-12799-7 Kang S, Park C, and Seo K 2017: Ocular abnormalities associated with hypovitaminosis a in hanwoo calves: A report of two cases J Vet Med Sci, 79(10), 1753–1756 https://doi.org/10.1292/jvms.17-0166
Maggs D, Miller P, and Ofri R 2008: Slatter’s Fundamentals of Veterinary Ophthalmology In Slatter’s Fundamentals of Veterinary Ophthalmology Elsevier https://doi.org/10.1016/B978-0-7216-0561-6.X5001-1
Martin CL 2018: Ophthalmic Disease in Veterinary Medicine In Ophthalmic Disease in Veterinary Medicine CRC Press https://doi.org/10.1201/b20810 Martin CL, Pickett JP, and Spiess BM 2019: Ophthalmic Disease in Veterinary Medicine (2nd ed.) CRC Press/Taylor & Francis Group Pearce JW, and Moore CP 2013: Food Animal Ophthalmology In K. Gelatt, B. Gilger, & T. Kern (Eds.), Veterinary Ophthalmology (pp. 1610–1674) Wiley Blackwell
Rajathi S, and Muthukrishnan S 2020: Gross anatomical and ophthalmoscopic findings of retinal fundus in sheep Haryana Vet, 60(1), 108–110
Sarierler M, and Kilic N 2003: Adnan Menderes Üniversitesi ( ADÜ ) Veteriner Fakültesi Cerrahi Kliniğine Getirilen Hastalara Toplu Bir Bakış ( 1999-2003 ) Giriş Materyal ve Metot Bulgular Tartışma ve Sonuç Uludağ Üniversitesi Vet Fakültesi Derg, 22(1-2–3), 1999–2003
Shunmugam R, Ramprabhu R, Gupta C, and Sundarajan R 2020: Comparative ophthalmoscopic examination of normal retinal fundus in camel and sheep 8(1), 1265–1267
Şirin ÖŞ 2020: Research Article Normal Ocular Fundus Imaging with Smartphone Ophthalmoscope in Honamlı Goat Breed Dicle Üniversitesi Vet Fakültesi Derg Araştırma Makal, 13(1), 65–69