Page 335 - Color Atlas Of Pathophysiology (S Silbernagl Et Al, Thieme 2000)

A. Diseases of the Retina
Retinitis pigmentosa
Macular degeneration
Retinal detachment
b 3 Electroretinogram
Light
Rods Phagocytosis b c
Cones
Hc Degeneration of d
the photorecept.
Bp Occlusion of cells Retina
Am central artery
a the
a
Cell death Retinal
G 2 Occlusion of detachment
central artery Diseases of
1 Blindness 1 s
B. Diabetic Retinopathy
Normal fundus
Diabetes mellitus
Capillary Plate 10.14
Glucose

Sorbitol AGE
Pericyte
Thickening of
Swelling capillary wall

Vessel narrowing
Ischemia
Vessel proliferation
Bleeding
Retinopathy (loss of vision)
Photo: Hollwich F. Taschenatlas der Augenheilkunde. 3rd ed. Stuttgart: Thieme; 1987
C. Night Blindness and Color Blindness
Vitamin A deficiency
Red blindness Green blindness
(protanopia) (deuteranopia)
all-trans-vitamin A 15

11-cis-vitamin A
Meta- 10
rhodopsin Protanopia: no number
11-cis-retinal Absolute differential threshold 5
Rhodopsin Norm
Light perception 0 400 500 600 nm
Night blindness
2 Color blindness 325
1 Visual pigment deficiency 3 Test charts Deuteranopia: no number
Silbernagl/Lang, Color Atlas of Pathophysiology © 2000 Thieme
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