Essay Title: 

Vision: The Transparent Processes

March 24, 2016 | Author: | Posted in case study, mathematics and economics

Running head : ANATOMY OF AN EYE

Anatomy of an Eye

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Abstract

The true mystery of the eye is not just found in the anatomy of the physical eye itself , but , rather in how this anatomy works in conjunction with brain function . The anatomy of the eye is examined in such a context as how the sensory perception of the eye works in tandem with brain function in the optical nerve of sensorimotor [banner_entry_middle]

functions of visual modality . This will examine the visual pathways of the eye and its impact on the visual acuity functionality

Human Vision

There are many aspects of human vision that we are not entirely aware of that happens behind the scenes . We certainly understand that we need our eyes to see the many colors and structures that encompass our visual acuities but , there are many aspects that work in conjunction with the visual dexterity that forms the entire component of the eye and brain functionality

This will focus on not just eye anatomy itself but the functionality of the eye with respect to each faction of what vision means . Any person can describe the basic functionality of the components of the human eye and what their processes are in the participation of vision . For instance , we know that when light hits the human eye through the refractory process , the light is then imaged onto the retina by the lens . The retina consists of three individual layers of neurons (photoreceptor , bipolar and ganglion ) which are responsible for detecting the light from these images and then causes impulses to be sent to the brain along the optic nerve . The brain then decodes these images into information that is processed into what we know as vision (Szaflarski

Rod Cells and Cone Cells of the Retina

A rod and cone cell is found within the retina of the eye and are basically responsible for , as Max Schultze discovered in around 1874 their responsiveness to light . Schultze discovered that the retinal cones are the color receptors of the eye and the retinal rod cells while not sensitive to color , are very sensitive to light at low levels (Szaflarski ) and Selig Hecht showed in 1938 , the exquisite sensitivity of rod cells when he showed that a single photon can initiate a response in a rod cell (Szaflarski . Cone cells , although they are less sensitive to light are in fact a great responder to how we see color

As shown in Figure 2 , described in Dr . Szaflarski ‘s How We See :The First Steps of Human Vision , basically the cells are divided into two sections , the bottom portion is called the inner segment and contains the nucleus and synaptic endings . The synaptic ending attaches to the neurons which produce signals that go to the brain . The top portion is called the outer segment which is comprised of a membrane that is folded into… [banner_entry_footer]

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