Human Eye and Camera

Elie Wiesel used eyes as a motif in his narrative, Night, as windows to characters’ inner souls. He used eyes to assist the theme of surviving at all costs throughout the story by giving the audience an insight of people’s true emotions and status. Without eyes, we would have been blind to see past characters’ outer layers of fake emotion. There is more than the eye can see. One has to look deep into another’s eyes to see the true light or darkness within them.

Gibson’s and Gregory’s theories of perception both suggest that eye-retina is important for perception. The both believe that without eye-retina, a person will not be able to see. This is a common view of both of the theories of perception. The idea is supported by the case of SB. SB was a man who had been blind from birth due to cataracts. When he was 52, he had an operation which restored his sight and hence he could see. Thus, this case has shown the importance of eye-retina for things to be perceived. And therefore, supports both of theories of perception which eye-retina is essential for perception.

As vital organ of vision, the eye, allows us to learn more about the world around us more than any other organ or senses. Sight, the physical sensory experience and vision, the metaphysical concept of how our brain interprets images both work harmoniously and play a huge role in our everyday lives. However, almost a billion people are either blind or visually impaired simply due to not having a pair of glasses. Being able to lead people in the direction of good vision is what developed my interests.

After being shown a picture of an elephant they eye will take the light that is reflected from the object and it will enter the eye through the pupil. Then the light will be focused by the cornea and the lens to form a sharp image of the elephant in the retina. The retina is the network of neurons that cover the back of the eye and contains the visual receptors for a person vision. The visual receptors are made up of cones and rods that contain light sensitive chemicals called visual pigments. Visual pigments reacht to light and cause a triggered electrical signals to occur. These electrical signals will then flow through a network of neurons and this network of neurons is what makes up a persons retina. After the flow through the network of neurons occurs the electrical signals will emerge from the back of the eye in the area

When it comes to vision, we see things based on the light reflected from surfaces. The reflected light waves enter the eye through the cornea at the front of the eye, it's resized at the pupil, focused by the lens, and hits the retina at the back. The light is then detected by rods and cones, photoreceptors, which alters the light into electrical signals. The optic nerve transmits those vision signals to the lateral geniculate nucleus, where visual information is transmitted to the visual cortex of the brain then converts into the objects that we see.

The eye is the organ of sight. It is used in almost everything we do, from playing sport to reading. A normal and well functioning eye can focus objects and images, both near and far, perceive depth and adapt to changes in light.

Ocular Lens - The ocular lens is the lens you look in closet too your eyes. It helps magnify the specimen as well.

The brain identifies what it sees in a series of steps. The brain makes a feature map of the eye breaking the visual field into sections. Information collected in a particular section of the visual field will always be sent to the

Front Facing Eyes with high-quality optics which create an abnormally large binocular field of observation which is a sign for increased ethological importance for the use of stereo vision

The iris is a thin diaphragm made of connective tissue and smooth muscle fibers. It lies between the cornea and lens. The iris is composed of three layers including endothelium, stroma and epithelium. The anterior chamber, the space between the cornea and the lens is divided into two chambers. The patterns that form the structure of the iris are unique to each person. Like fingerprints, iris pattern complexity can potentially identify a person.

2. When this was done, each of the photographs would mimic what each of the eyes was supposed to see in reality.

A camera lens focuses patterns of light onto film which records the image exactly. If the lens is out of focus or partially covered, a b lurry or obscured picture will result. The film is a recording device, it does not interpret and select what it portrays. Images from a camera are objective in a very literal sense. Seeing, however, is not such a seamless process. Our eyes work similarly to a camera in that they have a lens which focuses a real image on our retina, a light sensitive sheet of cells. This retinal image is a portrayal of the world as it truly is. The image which we see, however, is not this image. By considering a normal vis ual property as well as an uncommon ocular disorder the process of formulating our

The eye is an opaque eyeball filled with liquid. In the front of the eyeball is a transparent opening known as the cornea. The cornea is a thin membrane

1. Debra Ronca,(2008) ‘How the London eye work’ Available from http://adventure.howstuffworks.com/london-eye2.htm. [Accessed 28 November 2012]