A Short Note On The Color Vision Deficiency - 1438 Words

Some included might be nearsightedness, known as myopia, reduced visual acuity, uncontrollable eye movements, or more sensitivity to bright lights known as photophobia. This color vision deficiency can be considered a from of achromatopsia, the other type of monochromacy. (WC #4) In this type none of the cone cells function, which makes the person experience their work in only black, gray, and white. It is present at birth and the lack of cones can make them unconformatble bright lights. Both of these types are extremely rare and much more severe than red-green or blue-yellow colorbllindness. (WC #3) As stated from Genetics Home Reference, â€Å"Blue cone monochromacy affects about 1 in 100,000 people worldwide.† (WC #4) Also, this is found equally in men and women. These are autosomal recessive disorders. (WC #3) As stated earlier men have a much greater chance of having color vision deficiency. (WC #6) From data gathered of populations in Northern European ancestry, 1 i n every 12 males has red-green colorblindness compared to 1 in every 200 females. (WC #4) Therefore, poor color vision is primarily genetically inherited for the most common forms. (WC #6) Red-green color blindness is an X-linked inheritance that is carried by the mother. For women, since there are two X chromosomes, normally the normal gene can offset the mutated X chromosome. (WC #3) When that happens the women does not have the disease; however she is still a carrier of the gene to her offspring. IfShow MoreRelatedNR304 Assessment ESE Study Guide 3 Essay3455 Words   |  14 Pagesbecause of fragile tissue w/ poor drainage. 2. Assessment of legs a) Color: If peripheral vessels are constricted the skin will be _____. b) Color: If the vessels are dilated the skin tone will be _______. c) Color: An elevated leg that is pale indicates? d) Color: _______ must be reported to the physician immediately. e) Color: a _____ discoloration over the tibial surface is associated with ____ disease. The color stems from blood leaking out of a vessel. f) Texture: thickened skin w/ brownRead MoreHuman Physiology Lab2759 Words   |  12 PagesHuman Physiology Lab Special Senses Cutaneous Senses and Vision September 24/26, 2012 Our bodies are capable of sensing a wide spectrum of stimuli. We are consciously aware of some of the information our bodies perceive, but much of the information that is sensed is beyond our consciousness. Receptors responsible for perception of stimuli are found in many places: skin, eyes, ears, mouth, blood vessels, lungs, brain—frankly, every cell in the body has sensory receptors. 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