PPT-VISUAL DEFECTS 3 COLOR BLINDNESS

Inability to see specific colors The term color blind does not mean that objects are seen only in black and white Total color blindness is very rare There are many types and degrees of color blindness . Ma thger Alexandra Barbosa Simon Miner Roger T Hanlon Marine Biological Laboratory Marine Resources Center 7 MBL Street Woods Hole MA 02543 USA Received 8 August 2005 received in revised form 21 September 2005 Abstract We tested color perception ba A look into how we see and what we see.. What is Light?. Light is a type of . wave. .. A . wave. is a disturbance that transfers energy from one point to another without transferring matter. . Eg. . Water waves.. Presenter Name. By . PresenterMedia.com. By . Sumitra. . Marda. Optometrist, . Ocularist. , . Low vision specialist, . Sportvision. specialist. Low vision and Vision Rehabilitation. To enhance independent living and self sufficiency with dignity for people who have permanent visual impairments, through . 17. .08.2015. 1. 2. 3. LEARNING OBJECTIVES. By the end of this lecture the students should be able to:. Define blindness, visual impairment & low vision according to the WHO- ICD-10 classification. Color Blindness. Discovery. John Dalton, an English chemist, was the first to report the disorder. . . . F. irst . general condition of color blindness was called . Daltonism. . Dalton believed that a colored liquid inside the . Color blindness. Color blindness was the chosen name since it affected the losing of one or some of the three color cones in the human eye which are red, green, and blue. It means human diagnosed with color blindness still can see color but is limited to the colors they can see. Some colors could be a total blind or in a different shade from the original.. J. ones, Coby Austin, Ellie Stiller, and Deon Robinson. Color Blindness: The history. A reduced ability to distinguish between certain colors.. Color blindness is also called color vision deficiency.. 1. 2. 3. LEARNING OBJECTIVES. By the end of this lecture the students should be able to:. Define blindness, visual impairment & low vision according to the WHO- ICD-10 classification. Critically evaluate the definition & its implications. Color blindness is more seen in males than females, because the most common form of color vision deficiency is encoded on the X sex chromosome.. “What color is this?”. is the most annoying question you can ask your colorblind friend. Gupta. Physiology, Physiology. JN MC, AMU, Aligarh. Color sense. Ability of the eye to discriminate between different colors excited by light of different wavelengths. Function of cones. Better appreciated in photopic vision. in Your Game Software. IGDA Game Accessibility SIG. Open Educational Resources (OER) Project. These slides were provided by Things Entertainment, LLC . http://www.thingsentertainment.net. . Optics of Vision . Optics of Vision . Refraction power a lens “Diopter” = 1 m / focal length. Optics of Vision . Optics of Vision . Picture Formation. cataracts . (opacities in the lens). Picture Formation. 108 108 To Study the Prevalence of Color Blindness among Adolescent (9 th –12 th Std.) Schoolchildren in Haldwani Himani Jailkhani 1 , G S Tityal 2 , Nitin Mehrotra 3 1 PG Resident, Department By Colblindor www. color - blindness .com C OLOR B LIND E SSENTIALS 2 C OLOR B LIND E SSENTIALS Visit Colblindor at www.color - blindness.com and learn a lot mor e about color vision deficiency,