Post on 16-Jan-2016
2) Vision
The Special Senses
13th edition
Chapter 17
Pages
635 - 671
12th edition
Chapter 17
Pages
598 - 633
Anatomy of the eye
Anatomy of the eye
Anatomy of the eye
Anatomy of the eye
Anatomy of the eye
Intraocular Fluid
Intraocular Fluid
Glaucoma
Retina
Pigmented layer
Photoreceptors
Bipolar cells
Ganglion cells
Horizontal cell
Amacrine cell
Photoreceptors
Cones
Rods
Photoreceptors
Cones
Rods
Light Detection
Light Detection
Light Detection
Light Detection
Photoreceptors
Cones
Rods
Cones
Rods
Photopsin : blue, green and red sensitive pigments
Optics of Vision
Light refraction
Optics of Vision
Optics of Vision
Accommodation
Vision problems
Vision problems
Visual acuity
Normally , people has the ability to distinguish contours that are approximately 1.75 mm apart at 6 meters distance from the eye
Vision problems
Astigmatism : irregular curvature of either the cornea or the lens, which lead to blurred or distorted vision due to parts of the image are out of focus.
Light Adaptation
Pupillary size
Pupillary LightReflex
Olivary pretectal nucleus
Edinger-Westphal nucleus
Light Adaptation
Pupillary size
Neural adaptation
Photoreceptor adaptation
Light Adaptation Pupillary size Neural adaptation Photoreceptor adaptation
VISUAL PATHWAY