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How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular Pathology Fellow Comparative Ocular Pathology Laboratory of Wisconsin

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How Does Seafood See Food?Midwest Veterinary Ophthalmology Conference

Hershey, PAFebruary 7, 2009

Cynthia Bell, DVMOcular Pathology Fellow

Comparative Ocular Pathology Laboratory of Wisconsin

Page 2: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Classes of the Mollusca

Page 3: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Evolution of the lens

Page 4: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Pigment CupGastropod: Limpet Eye

Page 5: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Pin HoleBivalve: Giant Clam

Symbiotic Relationship with Blue-Green Algae*

Algae Photoreceptors

Near Pin Hole

Page 6: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Pin HoleCephalopod: Chambered Nautilus

Sample courtesy of Ivan Schwab

Page 7: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Pin HoleCephalopod: Chambered Nautilus

Page 8: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Mirror eyeBivalve: Scallop

Page 9: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Mirror eyeBivalve: Scallop

Page 10: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Mirror eyeBivalve Scallop

Cornea

LensRetina

Reflecting Surface

Page 11: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Lens eyeGastropod: Conch Eye

Photoreceptors

Page 12: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Lens eyeCephalopod: Humbolt Squid

Sample courtesy of Ivan Schwab

Page 13: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Nuclei of support cells

Photoreceptor nuclei

Glial cells

Lens eyeCephalopod: Humbolt Squid

Page 14: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Lens eyeCephalopod: Octopus

Page 15: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Lens eyeCephalopod: Octopus

Page 16: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Lens eyeCephalopod: Octopus

Page 17: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

Lens eyeCephalopod: Octopus

Page 18: How Does Seafood See Food? - University of Wisconsin ... · How Does Seafood See Food? Midwest Veterinary Ophthalmology Conference Hershey, PA February 7, 2009 Cynthia Bell, DVM Ocular

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