The Ophthalmic Examination as It Pertains to General Ocular Toxicology: Basic and Advanced Techniques and Species-Associated Findings - Ocular Pharmacology and Toxicology - page 160

Fig. 11 A Keeler All-Pupil ® indirect ophthalmoscope, 30D condensing lens, and a
Zeiss HSO-10 slit lamp used for ophthalmic examination of laboratory animals
Fig. 12 A Heine ® indirect ophthalmoscope with a power source and a 30 diopter
indirect condensing lens
will vary with the species anangiotic (guinea pig), merangiotic
(rabbit), and holangiotic (rodent, canine, swine, primate). The
pigmentation of the retinal pigment epithelium (RPE) and the
choroid vary between albinotic, sub-albinotic, and pigmented ani-
mals of the same species (mouse, rat, rabbit). Some species such as
the canine will have a tapetum located in the superior choroid, but