Nobody downloaded yet

Human Eye and Colour Vision - Case Study Example

Comments (0) Cite this document
Summary
This study describes the human eye and also investigate the relationship between the growing age and the human ability to respond to various wavelengths of light and also the author will try to establish the relationship between the ability of the human to identify wavelengths…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER94.7% of users find it useful
Human Eye and Colour Vision
Read TextPreview

Extract of sample "Human Eye and Colour Vision"

Download file to see previous pages Each receptor has a specific pigment to absorb a specific wavelength of light. The transmembrane proteins are found in these cells. This protein is also known as Opsin. It has a prosthetic group called retinal. It is a derivative of Vitamin A. This is used by all four receptors. Night-blindness and color-blindness are results of the deficiency of Vitamin A in any or all type of receptors. The retina consists of bipolar and ganglion cells. These cells form the path from cones and rods to the brain and transfer the responses. Ganglionic cells are always very active. The response to different wavelength is due to the cone cells present in the human eye. Rods and cones are absent at the blind spot of the eye. This is the place where no image is formed hence called Blindspot.
Light enters our eyes through the lens at the front of the eye and is focused onto the retina inside the back of the eye. The retina is covered with millions of light-sensitive cells which pass on signals to the brain via the optic nerve.
Vision is based on the visual stimulus. The rod cells help differentiating darkness, light and detecting motion and movements. These are active in low light or darkness. The cone cells are sensitive to the colour differences. Each eye has around 120 million rod cells and six million cone cells. The receptive field of the eye consists of a retinal ganglion cell. These cells receive inputs from one to thousands of photoreceptors. These receptors are arranged in a center-suthe round array with on centers and off perimeters or vice versa. Each eye has nearly 126 million of photoreceptors. The cone cells are concentrated towards the centre of the retina. This is the area where more light falls. These long, medium and small to the new cells are interspersed in the retina. There are several layers of these cells. These layers support the image processing in the brain. The photopigments in the cone cells are adjusted for a specific band of the spectrum of light. These detect the wavelengths of light. Wavelengths of light belong to certain predominant colour bands i.e. red, green and blue.  The light which falls on retina is most of the time consist of overlapping wavelengths of light.   ...Download file to see next pagesRead More
Cite this document
  • APA
  • MLA
  • CHICAGO
(Human Eye and Colour Vision Case Study Example | Topics and Well Written Essays - 10000 words, n.d.)
Human Eye and Colour Vision Case Study Example | Topics and Well Written Essays - 10000 words. Retrieved from https://studentshare.org/health-sciences-medicine/1703244-the-human-eye-and-colour-vision-the-ability-for-human-participants-to-differentiate-between-similar-wavelengths-of-light-and-the-study-of-degradation-of-this
(Human Eye and Colour Vision Case Study Example | Topics and Well Written Essays - 10000 Words)
Human Eye and Colour Vision Case Study Example | Topics and Well Written Essays - 10000 Words. https://studentshare.org/health-sciences-medicine/1703244-the-human-eye-and-colour-vision-the-ability-for-human-participants-to-differentiate-between-similar-wavelengths-of-light-and-the-study-of-degradation-of-this.
“Human Eye and Colour Vision Case Study Example | Topics and Well Written Essays - 10000 Words”, n.d. https://studentshare.org/health-sciences-medicine/1703244-the-human-eye-and-colour-vision-the-ability-for-human-participants-to-differentiate-between-similar-wavelengths-of-light-and-the-study-of-degradation-of-this.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF Human Eye and Colour Vision

Lasik Eye Surgery in Sports: The 20/20 Vision

...Lasik Eye Surgery in Sports: The 20/20 Vision Sports, such as swimming, archery, cricket, baseball, badminton, and football, necessitate good eye and foot or eye and hand dexterity or co-ordination. Laser eye surgery, like LASIK, is currently fulfilling a vital function in the growth of these sports. This is due to the fact that star players are trying to gain the best possible performance from all their body parts so as to play at their optimal (Wilson & Falkel 2004). There has been a great amount of capital ventured by manufacturers of glasses and contact lens in attempting to reduce the effect of putting synthetic material in the eyes...
3 Pages(750 words)Research Paper

Human Variation in Skin Colour

...? Human Variation in Skin Color Human Variation in Skin Color Introduction The variation of skin color has a background that is complex, however; the variability of human beings is defined as the mental and physical characteristics of human beings that do range with possibility of certain values. All living species have variations, and, it is as a result of biological and environmental processes. Variation is an essential characteristic since it ensures species vitality, their adaptability to environmental dynamism as well as their survival. Species differ in degree of their variability; it is believed that the degree of variation is high in human beings...
5 Pages(1250 words)Essay

Understanding Colour

...? Psychological Aspects of Color Affiliation with more information about affiliation, research grants, conflict of interest and how to contact Psychological Aspects of Color Psychology can be perceived as the scientific study of human mind and its functions, affecting the behavior of an individual. Humans have different perceptions and viewpoints about a particular thing or situation and behave accordingly. The human mind is attracted to a number of things and hence perceive about that thing according to their state of mind. Color affects the human mind in different ways and also they inform people the traits of different things in the world. Colors play a very important...
2 Pages(500 words)Research Paper

The Eye

...?Eye Disorders Eyes are such an important organ of the human body that define the charm of one’s personality. It is considered as the gateway to the world and it determines one’s independence. Without healthy eyes and good vision, one is forced to be dependant on someone else. Therefore, eyes with good vision define the quality of life. It is a common belief that the vision of eyes starts deteriorating while growing old. But loss of vision need not necessarily be a consequence of ageing. Sometimes it occurs as a result of certain infections as well. To identify the...
5 Pages(1250 words)Research Paper

Colour Metaphor

...COLOUR METAPHORS Colour is essence of our lives .We exists in a multi-coloured world and use colourful language. Colours are significant because before anything else we respond to colours. Colours influence our way of thinking, alter our ways of dealing and becomes the foundation of our reactions. Colours, when used in languages, have cultural context, are culture specific and associated with meanings and some times more than literal meanings like Metaphors. For example, this assignment came up out of blue and made me feel blue. The use of such phrases requires a special cultural and linguistic setting. On the other hand, the colour words themselves have traditional linguistic expression which is symbolic to what colour represent... in a...
5 Pages(1250 words)Essay

Colour theory

...Colour Theory Colour theory Colour theory in the visual arts is a practical guidance to mixing of colours and the visual crush or impacts of combination of specific colours. There are categories of colours which are primary colours, secondary colours and tertiary colours. Therefore. colour is a matter of light. There can be no colour without light. First, all the visible colour spectrum contains all white light. This implies that when the colours are together, with the same amount of intensities, they make the white...
2 Pages(500 words)Essay

Eye

... does not cure diabetic retinopathy; however, strict control of blood sugar will lessen the risk of vision loss (Samii & Jannetta, 2012). Another common visual impairment is myopia, in which the distant objects seem blurred. It can be treated with glasses, contact lenses, or corrective surgery. References Metz, A. (2012). The anatomy and histology of the human eye. RareBooksClub.com. Samii, M., & Jannetta, P. J. (2012). The cranial nerves. Springer.... Running Head: Eye Eye [Institute’s Eye Introduction Eye is an organ that acts in response to light for numerous reasons. The eye has three layers, surrounding three translucent structures. The outermost...
1 Pages(250 words)Essay

The Human Eye

...Summary The human eye is a delicately complicated organ. An eye serves like a camerato collect and focus sight and change it into an electrical signal that the brain decodes into images. An eye has a highly specialized retina that senses light and processes the signals using dozens of diverse types of neurons instead of photographic film. An eye is exceedingly complex in that its origin has been a cause of célèbre for a long period among intelligent and creationists design advocates who view it as a major instance of what they referred to as a system that is unable to function in the absence of any of its constituents and that hence, cannot have changed...
3 Pages(750 words)Essay

Colour

..., cultures, and subcultures. In examining the colour red, one of the most overarching considerations is establishing an epistemological framework between cultures. Friedman & Miyake (2004) investigated the extent language shapes human perception. This study primarily revealed that cultures with more complex vocabularies for designating colour subsequently perceived colour in different ways. In terms of red, this is significant as it is difficult to speak of a singular ‘red’ throughout world culture, but rather a series of approximating notions of ‘redness’ that are at best pragmatically linked. This notion of redness has assumed symbolic recognition in global society. One of the most prominent such instances is the notion of red... ...
2 Pages(500 words)Essay

Colour Perception

...Other (s) SARC 122 Colour Perception Module Assignments Question a. Color temperature as a concept refers to a characterization or measure of a light’s spectral properties/color (in Kelvin “K”). High color temperature light source usually implies colder( blue light) while low color temperature denotes warmer(more yellow/red) b. Spectral colour- refers to any color that occurs in the visible spectrum and is evoked by a single wavelength such as yellow. On the other hand, perceptive colour refers to an optical color mixture that can be visually perceived based on the reflected light rays such as Georges Seurat’s painting Question 2 a. A He-Ne laser producing all of its light at 633 nm is a...
2 Pages(500 words)Lab Report
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Case Study on topic Human Eye and Colour Vision for FREE!

Contact Us