1 / 45

Neuroophthalmology from the Perspective of an Anterior Segment Surgeon

Neuroophthalmology from the Perspective of an Anterior Segment Surgeon. Gerhard K. Lang Department of Ophthalmology University of Ulm. Neuroophthalmology from the Perspective of an Anterior Segment Surgeon. Gerhard K. Lang Department of Ophthalmology University of Ulm.

cain
Télécharger la présentation

Neuroophthalmology from the Perspective of an Anterior Segment Surgeon

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Neuroophthalmology from the Perspective of an Anterior Segment Surgeon Gerhard K. Lang Department of Ophthalmology University of Ulm

  2. Neuroophthalmology from the Perspective of an Anterior Segment Surgeon Gerhard K. Lang Department of Ophthalmology University of Ulm

  3. „Do not trust your eyes!“ Eye - and Brain - Entertainment REM

  4. Harmon LD & Julesz B (1973). Masking in visual recognition: Effects of two-dimensional filtered noise. Science 180:1194–1197 Optical Illusions and visual Phenomena: Illusion and Reality Gala looking into the Mediterranean Sea Salvadore Dali 1904-89 Effect:“Lincoln Illusion“ („block masking“)

  5. Ambiguous pictures Reversible goblet – Edgar J. Rubin

  6. Ambiguous pictures Effect: rival-schemata ambiguity Reversible goblet – Edgar J. Rubin

  7. Ambiguous pictures Effect: rival-schemata ambiguity Rabbit and Duck

  8. Effect: rival-schemata ambiguity

  9. Effect: rival-schemata ambiguity

  10. Sigmund Freud, Neurologist, 1856-1939

  11. Kanisza figure (Gaetano Kanisza) Congnitive- / Gestalt Field Effect: subjective or illusory contours

  12. Effect: subjective or illusory contours

  13. Effect: subjective or illusory contours

  14. Size Illusions Original: Müller-Lyer Illusion

  15. St Michael's Hill, Bristol, England This illusion demonstrates the effect of some simple image processing occurring at the retina combined with some complex processing in the cortical cells of the striate cortex. Effect: „Bristol Café wall Illusion“

  16. Gregory RL & Heard P (1979) Border locking and the Café Wall illusion. Perception 8:365–380 Geometric- & Angle Illusion The apparent tilt of the mortar lines is caused by orientation-sensitive simple cells in the striate cortex.

  17. The cushion Illusion This drawing consists solely of rectangles and squares, set straight and true; the curvature is all in your mind. Akiyoshi Kitaoka 1998

  18. Petersdom, Fassade von C. Maderno 1607-1612

  19. Fraser`s Spiral („Twisted Cord Illusion“) Fraser J (1908) A New Visual Illusion of Direction. Brit J Psych 2:307-320

  20. Drawing hands, Tekenen – M.C. Escher Maurits Cornelius Escher, Niederlande 1898-1972 The magic mirror of M.C. Escher Effect: Impossible objects

  21. Belvédère M.C. Escher 1958

  22. The Pool David MacDonald

  23. The Terrace David MacDonald

  24. Pergola, Istvan Orosz, Hungary 1951 www.utiz.net

  25. Hidden Images Worth1000.com

  26. „The Face in the Beans“ Effect: „one shot learning“ Furitsu (2002) photoshop contest Worth1000.com

  27. Dallenbach`s figure

  28. Dallenbach`s figure

  29. Dallenbach`s figure

  30. Luminance & Contrast Adelson`s „Checker-shadow illusion“ Adelson EH (1993) Perceptual organization and the judgment of brightness.Science 262:2042-2044

  31. Luminance & Contrast Hermann L (1870) Eine Erscheinung simultanen Contrastes. Pflügers Archiv für die gesamte Physiologie 3:13–15 Hermann Grid Illusion

  32. Luminance & Contrast Scintillating Grid Schrauf M, Lingelbach B, Wist E.(1997) The scintillating grid illusion. Vision Res 37:1033-1038

  33. Rotating Snake Illusion Effect: Illusory motion Kitaoka A, Ashida H (2003) Phenomenal characteristics of the peripheral drift illusion. VISION 15:261-262

  34. Effect: Illusory visual motion Enigma This image „The Enigma“ is by Isia Leviant (1984)

  35. final test 10 seconds concentration Where is the giraffe ?

  36. Thank you for your attention ! City Center of Ulm Department of Ophthalmology

  37. World Ophthalmology Congress 6 –10 June 2010 Berlin Germany www.woc2010.de

More Related