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. Author manuscript; available in PMC: 2012 Sep 1.
Published in final edited form as: Vet Ophthalmol. 2011 Sep;14(Suppl 1):15–29. doi: 10.1111/j.1463-5224.2011.00912.x

Figure 4.

Figure 4

Fundus photographs illustrating (A) the optic nerve head (ONH) appearance of a cat with advanced primary congenital glaucoma, with ONH cupping and optic nerve degenerationand (B) a normal cat, which demonstrates normal prominence of the laminar pores. Note that in the glaucomatous cat (A) the ONH is small and dark and surrounded by a dark ring and by focal peri-papillary hyper-reflectivity. Optic nerve cube scans acquired by spectral-domain Optical Coherence Tomography (OCT; Cirrus, Carl Zeiss Meditec Inc., Dublin, CA) in a cat with glaucoma that demonstrates dramatic posterior displacement of the lamina cribrosa (C) compared to a normal cat (D).