Department of Histology and Embryology, Faculty of Veterinary Medicine, Harran University, Sanliurfa, Turkey.
Department of Anatomy, Faculty of Veterinary Medicine, Harran University, Sanliurfa, Turkey.
Anat Histol Embryol. 2023 Sep;52(5):696-708. doi: 10.1111/ahe.12927. Epub 2023 Apr 25.
The current study aims to present differences between the pecten oculi of different avian species through morphologic, macroscopic, light, and electron microscopic examinations. The study is a comprehensive research on seven avian species (sparrowhawk, hawk, magpie, swan, heron, pheasant, duck). The right eyes of the animals utilized in the study were removed for light microscopic examination, whereas their left eyes were removed for electron microscopic and macroscopic examinations. Morphometric analyses, as well as stereo and light microscopic measurements, were carried out on the pecten oculi of the animals. Given all these data, it was determined that the height of the pecten oculi did not differ among the species in the study; however, the pecten oculi were larger in birds with the highest value compared to the other species in the macroscopic measurements. Also, the pecten oculi vessels were larger, and the number of melanocytes was higher in keen eyesight, raptor, and migratory birds with large bulbus oculi. All these data suggest that the pecten oculi not only supplies nutrient to the retina but also contributes to sharp vision during migration and hunting, UV absorption from sunlight, as well as preservation of intraocular equilibrium.
本研究旨在通过形态学、宏观、光镜和电子显微镜检查来展示不同禽类的栉膜的差异。本研究是对七种禽类（雀鹰、鹰、喜鹊、天鹅、苍鹭、雉鸡、鸭）的综合研究。研究中使用的动物的右眼被取出用于光镜检查，而左眼被取出用于电子显微镜和宏观检查。对动物的栉膜进行了形态计量分析以及立体和光镜测量。根据所有这些数据，确定研究中不同物种的栉膜高度没有差异；然而，在宏观测量中，与其他物种相比，具有最高值的鸟类的栉膜更大。此外，在视力敏锐、猛禽和迁徙鸟类中，睫状突血管更大，黑素细胞数量更高，这些鸟类的眼球较大。所有这些数据表明，栉膜不仅为视网膜提供营养，而且有助于迁徙和狩猎期间的敏锐视力、阳光中的紫外线吸收以及眼内平衡的维持。
