Do you see what I see? Optical morphology and visual capability of 'disco' clams ().

The 'disco' clam (Finlay, 1927) is a marine bivalve that has a unique, vivid flashing display that is a result of light scattering by silica nanospheres and rapid mantle movement. The eyes of were examined to determine their visual capabilities and whether the clams can see the flashing of conspecifics. Similar to the congener , exhibits an off-response (shadow reflex) and an on-response (light reflex).

Third eyelid gland neoplasms of dogs and cats: a retrospective histopathologic study of 145 cases.

Purpose: To describe the various types of primary neoplasms affecting the third eyelid (TEL) gland of dogs and cats.

Methods: A retrospective search of the Comparative Ocular Pathology Laboratory of Wisconsin (COPLOW) database was performed. Veterinary ophthalmologists, primary care veterinarians, and, when appropriate, owners were contacted for patient follow-up information.

Clinical, morphologic, and immunohistochemical features of canine orbital hibernomas.

Hibernomas are uncommon benign tumors of brown fat that occur in humans and various animal species. They have not been observed in the orbit of dogs, humans, or other animals. Here we report clinical, light and electron microscopic, and immunohistochemical features of a series of 7 hibernomas arising in the orbital region of dogs.

Comparative ocular anatomy in a blind African cichlid fish, Lamprologus lethops.

Objective: Troglomorphic fishes provide excellent comparative models for studying eye evolution. We describe the gross and microscopic anatomy of ocular structures of the depigmented, blind cichlid, Lamprologus lethops, and its putative sister species, Lamprologus tigripictilis collected from the lower Congo River in the Democratic Republic of Congo.

Procedures: Both species were fixed, paraffin-sectioned and stained.

Superficial corneal squamous cell carcinoma occurring in dogs with chronic keratitis.

Objective: Canine corneal squamous cell carcinoma (SCC) is a rare tumor, with only eight cases previously published in the veterinary literature. The Comparative Ocular Pathology Lab of Wisconsin (COPLOW) has diagnosed 26 spontaneously occurring cases, 23 in the past 4 years. This retrospective study describes age and breed prevalence, concurrent therapy, biologic behavior, tumor size and character, and 6-month survival rates after diagnosis.