These authors contributed equally
Comparative study of the retinal vessel anatomy of rhesus monkeys and humans
Article first published online: 15 MAR 2010
© 2010 The Authors. Journal compilation © 2010 Royal Australian and New Zealand College of Ophthalmologists
Clinical & Experimental Ophthalmology
Volume 38, Issue 6, pages 629–634, August 2010
How to Cite
Kong, X., Wang, K., Sun, X. and Witt, R. E. (2010), Comparative study of the retinal vessel anatomy of rhesus monkeys and humans. Clinical & Experimental Ophthalmology, 38: 629–634. doi: 10.1111/j.1442-9071.2010.02290.x
- Issue published online: 5 AUG 2010
- Article first published online: 15 MAR 2010
- Received 27 September 2009; accepted 25 January 2010.
Vol. 38, Issue 8, 824, Article first published online: 3 NOV 2010
- ADPase staining;
- retinal vessel;
- rhesus monkey
Objectives: This study aims to compare retinal vessel anatomy of normal rhesus monkeys and humans and to provide a basis from a structural perspective for the use of rhesus monkey as an experimental model in future studies of retinal vessels.
Methods: The retinas of six normal rhesus monkey eyes and eight human eyecups following corneal transplantation were obtained and stained using adenosine diphosphatase methods. The distributions, orders, layers of the retinal vessels and the perifoveal vascular ring were compared.
Results: With adenosine diphosphatase staining, distinct retinal vessels were fully discernable from the first order surrounding the optic disc to the fifth order. There were no statistically significant differences between rhesus monkeys and humans in the percentages of vessels surrounding the optic disc at the equator and the peripheral region. Vascular networks in both species were arranged in several layers around the optic disc, two anastomotic layers at the equator and one sparse layer peripherally. Capillaries at the macular area were quite dense and an intact perifoveal vascular ring was observed. No differences were observed between rhesus monkeys and humans in the percentage area of the vessels and the area, perimeter and diameter of the perifoveal vascular ring.
Conclusions: The distributions, orders, layers and the perifoveal vascular ring of the retinal vessels of rhesus monkey are quite similar to those of humans. The data suggest that from an anatomical perspective, the rhesus monkey is a good animal model for the study of human retinal vessels, particularly the macular capillaries.