1. Blindness - Wikipedia, The Free Encyclopedia Various scales have been developed to describe the extent of vision loss and define blindness. 1 Total blindness is the complete lack of form and visual http://en.wikipedia.org/wiki/Blindness

Blindness From Wikipedia, the free encyclopedia Jump to: navigation search This article is about the visual condition. For other uses, see Blindness (disambiguation) Blindness Classification and external resources The Blind Girl (1856), a painting by John Everett Millais ICD H H ... ICD Blindness is the condition of lacking visual perception due to physiological or neurological factors. Various scales have been developed to describe the extent of vision loss and define "blindness." Total blindness is the complete lack of form and visual light perception and is clinically recorded as "NLP," an abbreviation for "no light perception." Blindness is frequently used to describe severe visual impairment with residual vision. Those described as having only "light perception" have no more sight than the ability to tell light from dark. A person with only "light projection" can tell the general direction of a light source. In order to determine which people may need special assistance because of their visual disabilities, various governmental jurisdictions have formulated more complex definitions referred to as legal blindness In North America and most of Europe , legal blindness is defined as visual acuity visual field of less than 20 degrees (the norm being 180 degrees) are also classified as being legally blind. Approximately ten percent of those deemed legally blind, by any measure, have no vision. The rest have some vision, from light perception alone to relatively good acuity.

2. Blindness (2008) Directed by Fernando Meirelles. With Julianne Moore, Mark Ruffalo, Gael García Bernal. Visit IMDb for Photos, Showtimes, Cast, Crew, Reviews, Plot Summary, http://www.imdb.com/title/tt0861689/

Now Playing Movie/TV News My Movies DVD New Releases ... search All Titles TV Episodes My Movies Names Companies Keywords Characters Quotes Bios Plots more tips SHOP BLINDNESS Amazon.com Amazon.ca Amazon.co.uk Amazon.de ... IMDb Blindness (2008) Quicklinks main details combined details full cast and crew company credits external reviews awards user ratings recommendations message board plot summary plot keywords memorable quotes trivia merchandising links box office/business release dates filming locations technical specs news articles trailers and videos posters official sites miscellaneous photographs Top Links trailers and videos full cast and crew trivia official sites ... memorable quotes Overview main details combined details full cast and crew company credits ... memorable quotes Fun Stuff trivia goofs soundtrack listing crazy credits ... FAQ Other Info merchandising links box office/business release dates filming locations ... news articles Promotional taglines trailers and videos posters photo gallery External Links showtimes official sites miscellaneous photographs ... video clips Blindness advertisement photos board trailer details Register or login to rate this title User Rating: 340 votes more Photos see all 7 slideshow Videos see all 2 videos Overview Director: Fernando Meirelles Writers: (novel) Don McKellar (screenplay) Release Date: 26 September 2008 (USA) more view trailer Genre: Drama Mystery Romance Thriller ... more Plot: A city is ravaged by an epidemic of instant "white blindness". Those first afflicted are quarantined...

3. Blindness Kids who can t see, or can t see well, learn to live without using their eyes. To learn more about visual impairment and what causes it, read our article http://www.kidshealth.org/kid/health_problems/sight/visual_impaired.html

var fo = new FlashObject("/updates/K_squarebanner.swf", "kidleft", "153", "126", "5", ""); fo.addParam("QUALITY", "High"); fo.write("kid_left_flash"); KidsHealth Kids Kids' Health Problems Have you ever put on a blindfold and pretended that you couldn't see? You probably bumped into things and got confused about which way you were going. But if you had to, you could get adjusted and learn to live without your sight. Lots of people have done just that. They have found ways to learn, play, and work, even though they have trouble seeing or can't see at all. How Seeing Happens Your eyes and your brain work together to see. The eye is made up of many different parts like the cornea, iris, lens, and retina. These parts all work together to focus on light and images. Your eyes then use special nerves to send what you see to your brain, so your brain can process and recognize what you're seeing. In eyes that work correctly, this process happens almost instantly. When this doesn't work the way it should, a person may be visually impaired, or blind. The problem may affect one eye or both eyes. When you think of being blind, you might imagine total darkness. But some people who are blind can still see a little light or shadows. They just can't see things clearly. People who have some sight, but still need a lot of help, are sometimes called "legally blind." What Causes Blindness?

4. NFB - Home National Federation of the Blind, the leading force in the blindness field today, has 50000 members, 700 local chapters, 52 affiliates. http://www.nfb.org/

Contact Us Topic Index The real problem of blindness is not the loss of eyesight. The real problem is the misunderstanding and lack of information that exist. If a blind person has proper training and opportunity, blindness can be reduced to a physical nuisance. Upcoming Events June 15 - August 9, 2008: Teen Empowerment Academy The Teen Empowerment Academy is an eight-week residential training and employment program, created and led by the blind, offering blind students an opportunity to build skills, increase confidence, and gain work experience. June 29, 2008: NOPBC 25th Anniversary Celebration At the NFB convention in Dallas, the National Organization of Parents of Blind Children will celebrate 25 successful years. Along with their regular convention activities throughout the week, the NOPBC will host a dinner and program with awards, inspirational addresses, and highlights of NOPBC accomplishments. June 29 - July 5, 2008: National Convention This year's exciting convention will take place at the Hilton Anatole Hotel in Dallas, Texas. Make plans to be a part of it: pre-register online now ! Visit the Kenneth Jernigan Scholarship page to learn about convention scholarships.

5. Foundation Fighting Blindness The Foundation Fighting blindness is a nonprofit national organization that funds research for macular degeneration, retinitis pigmentosa (RP), http://www.blindness.org/

Text Only About Us Chapters Science and Research ... Career Opportunities Microsoft WebSpeak has been installed to read content on this site aloud. When you see this speaker icon, use your mouse to click on it and the wizard will be activated. Login Register Search: Breaking News from the Foundation Fighting Blindness Now They See - Landmark Gene Therapy Provides Vision to Nearly Blind Young Adults more LCA: Good Morning America Media Clip Groundbreaking research partly funded by the Foundation Fighting Blindness. more New Model of Artificial Retina Moves into Human Studies For people with the most advanced retinal degenerative disease — those who are blind or have only light perception — artificial retinas are providing noteworthy promise for restored vision. more Little Cousin, Big Hero Alan can make anyone laugh by putting a smile on his own face. When he smiles, you know that it’s from his heart and that he means it. Alan has never seen a smile before, making it even a more loving and a truer gesture. more Sela Cornell - Parents Hopeful About a Cure We are so proud of Sela and her development, and thanks to the research advances in the past few years we are very hopeful about a cure. It’s no longer a question of ‘if’ a cure will be found but when.

6. MedlinePlus: Vision Impairment And Blindness The leading causes of vision impairment and blindness in the United States are agerelated eye diseases macular degeneration, cataract and glaucoma. http://www.nlm.nih.gov/medlineplus/visionimpairmentandblindness.html

imageNames = false; @import url(http://www.nlm.nih.gov/medlineplus/images/advanced.css); @import url(http://www.nlm.nih.gov/medlineplus/images/header.css); @import url(http://www.nlm.nih.gov/medlineplus/images/menubutton.css); Skip navigation @import url("http://www.nlm.nih.gov/medlineplus/images/consumer_health_20.css"); Other Health Topics: A B C D ... List of All Topics Related Topics Cataract Diabetic Eye Problems Eye Diseases Eye Injuries ... Eyes and Vision Go Local Services and providers for Vision Impairment and Blindness in the U.S. Select Location AL - Alabama AR - Arkansas AZ - Arizona AZ - Tribal Connections Four Corners CO - Tribal Connections Four Corners DE - Delaware GA - Georgia IA - Iowa IL - Illinois IN - Indiana MA - Massachusetts MD - Maryland MI - Michigan MN - Minnesota NC - North Carolina NE - Nebraska NM - New Mexico NM - Tribal Connections Four Corners NV - Nevada OH - Ohio - Southeast SC - South Carolina TX - Central Texas TX - East Texas TX - South Texas TX - Texas Gulf Coast UT - Tribal Connections Four Corners UT - Utah VT - Vermont WY - Wyoming Select from map National Institutes of Health The primary NIH organization for research on Vision Impairment and Blindness is the National Eye Institute Vision Impairment and Blindness Also called: Low vision Vision impairment, or low vision, means that even with eyeglasses, contact lenses, medicine or surgery, you don't see well. Vision impairment can range from mild to severe. The leading causes of vision impairment and blindness in the United States are age-related eye diseases:

7. WHO | Blindness blindness is the inability to see. The leading causes of chronic blindness include cataract, glaucoma, agerelated macular degeneration, corneal opacities, http://www.who.int/topics/blindness/en/

Language options Search Main navigation Home About WHO Countries Health topics ... Health topics Main content Blindness Blindness is the inability to see. The leading causes of chronic blindness include cataract, glaucoma, age-related macular degeneration, corneal opacities, diabetic retinopathy, trachoma, and eye conditions in children (e.g. caused by vitamin A deficiency). Age-related blindness is increasing throughout the world, as is blindness due to uncontrolled diabetes. On the other hand, blindness caused by infection is decreasing, as a result of public health action. Three-quarters of all blindness can be prevented or treated. RELATED SITES Prevention of blindness and visual impairment FACT SHEETS Magnitude and causes of visual impairment PUBLICATIONS Publications: blindness RELATED LINKS Combating vitamin A deficiency FEATURES Face to face with chronic disease Ten facts about blindness and visual impairment WHO 60th anniversary KEY WHO INFORMATION Director-General Director-General and senior management Governance of WHO WHO Constitution, Executive Board and World Health Assembly

8. The New York Institute For Special Education The blindness Resource Center has thousands of links related to braille, eye conditions, vendors and access technology for the blind and visually impaired. http://www.nyise.org/blind.htm

Blindness Resource Center document.write(TODAY); NYISE Homepage Access Blindness Braille History ... Contact Webmaster Welcome to the Blindness Resource Center The Blindness Resource Center is maintained for over 10 years on the Internet by The New York Institute for Special Education (NYISE). NYISE is a private, nonprofit, nonsectarian educational facility which provides quality programs for children who are blind or visually disabled, emotionally and learning disabled and preschoolers who are developmentally delayed. The content of the resource is for general information purposes only and does not constitute advice. The Blindness Resource Center(BRC) tries to provide content that is true and accurate as of the date of writing; however, we give no assurance or warranty regarding the accuracy, timeliness, or applicability of any of the contents. Browsing the links at the BRC Web site will take you usually to websites and organizations not controlled or supported by NYISE. These external sites might include opinions or views which, are not necessarily those of NYISE. For our Annual Report and information on making a tax-deductible contribution contact: The New York Institute for Special Education Kim Benisatto, Operations Manager

9. Welcome To Prevent Blindness America Prevent blindness America is the leading volunteer eye health and safety organization dedicated to fighting blindness and saving sight. http://www.preventblindness.org/

Press Room About Us Affiliates You Can Help Search: Since 1908, Prevent Blindness America has been the nation's leading volunteer eye health and safety organization with the sole mission of preventing blindness and preserving sight. AC_FL_RunContent( 'codebase','http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0','width','88','height','73','id','vlc2','align','middle','src','vlc2','quality','high','bgcolor','#ffffff','name','vlc2','allowscriptaccess','sameDomain','pluginspage','http://www.macromedia.com/go/getflashplayer','movie','vlc2' ); //end AC code Eye Problems AC_FL_RunContent( 'codebase','http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0','width','88','height','73','id','vlc7','align','middle','src','vlc7','quality','high','bgcolor','#ffffff','name','vlc7','allowscriptaccess','sameDomain','pluginspage','http://www.macromedia.com/go/getflashplayer','movie','vlc7' ); //end AC code Your Child's Sight AC_FL_RunContent( 'codebase','http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0','width','88','height','73','align','middle','src','VLC12-testyoureyes','quality','high','bgcolor','#ffffff','allowscriptaccess','sameDomain','pluginspage','http://www.macromedia.com/go/getflashplayer','movie','VLC12-testyoureyes' ); //end AC code Test Your Eyes AC_FL_RunContent( 'codebase','http://fpdownload.macromedia.com/pub/shockwave/cabs/flash/swflash.cab#version=7,0,0,0','width','88','height','73','align','middle','src','VLC9-eyeinjury2','quality','high','bgcolor','#ffffff','allowscriptaccess','sameDomain','pluginspage','http://www.macromedia.com/go/getflashplayer','movie','VLC9-eyeinjury2' ); //end AC code

10. Blindness: Definition, Synonyms And Much More From Answers.com blindness ( bl ndn s ) ( medicine ) Loss or absence of the ability to perceive visual images. The condition of a person having less than 1/10 (20/200. http://www.answers.com/topic/blindness

BodyLoad('s'); Results for blindness On this page: Select Article Sci-Tech Dict. World of the Body Thesaurus Antonyms Britannica Concise Columbia Ency. Veterinary Quotes About Wikipedia Citations Or search: - The Web - Images - News - Blogs - Shopping Sci-Tech Dictionary: blindness Also from Answers.com... Bladder Problems Find out the different types, and ways to overcome this common problem. document.getElementById("videoBox").style.display="block" ′blīnd·nəs medicine ) Loss or absence of the ability to perceive visual images. The condition of a person having less than 1/10 (20/200 on the Snellen test) normal vision. ADVERTISEMENT InitForm('lookup1','autodiv1','down'); Library Arts Business Entertainment Food ... World of the Body: blindness Surprisingly, blindness rarely means total absence of light perception. Most definitions of blindness are based on measurement of visual acuity (the ability to read letters at a certain distance) and assessment of the ability of the person to carry out tasks needing vision. In the UK, the National Assistance Act 1948 states that a person can be certified as blind if they are ‘so blind that they cannot do any work for which eyesight is essential’. This rather circular definition refers to ‘any work’ and not just the person's normal job or one for which he has been specially trained. Visual acuity is usually tested by asking the patient to read letters of various sizes on a chart viewed from a distance of 6 m or 20 feet (the Snellen method ). Acuity is expressed as a fraction, the number on top referring to the distance at which a normal person can read a particular size of letter and the lower number the distance at which the subject being tested can read that size of letter. Hence ‘normal’ visual acuity is 6/6 (European) or 20/20 (American). A person should be certified blind if the visual acuity (while wearing corrective glasses) is 3/60 or below (when a letter that can be recognized from 60 metres by a normal person can be identified only from 3 metres or closer). A person should also be certified blind if their acuity is between 3/60 and 6/60 but they have completely lost the peripheral part of their visual field, hence restricting their vision to the central part of the field. Indeed, if the more useful lower part of the visual field is lost then someone with better than 6/60 acuity can be certified blind.

11. Homes For Sale Apartments Dating At Mcwdn.org A legally blind retired schoolteacher explains what blindness is and how it affects people. Includes a section of famous blind people. http://www.mcwdn.org/Blind/BlindKidsMain.html

Welcome to mcwdn.org Homes for Sale Apartments Dating Services Chat Rooms Airline Tickets Travel Guides Las Vegas Hawaii Used Cars Car Accessories Cellular Accessories Insurance Credit Cards Education Online Hotel Reservation Dating Online Debt Consolidation Need Cash? Click Here for Fast Cash

12. Blind Net's Home Page Start finding out what blindness is and isn t by using the links on this page. http://www.blind.net/blindind.htm

Welcome to Blind Net Thank you for clicking, surfing, searching and/or otherwise stopping by Blind Net. These pages will provide you with USEFUL and FACTUAL information about blindness; general information as well as links to organizations OF the Blind , those organizations FOR the Blind that work with us, some of the companies that provide equipment we use, and other resources . Be sure to bookmark this page for future reference; you can do this in most browsers by pressing Control and D. It should go without saying, but we'll say it anyway, that this is NOT a complete guide to sites on the Web. There are a number of reasons for this but the main one is the Web grows and changes so fast that keeping up is all but impossible. Also please remember a company or organization being listed here DOES NOT constitute an endorsement. Every site on the web reflects the views of its creators and or sponsors. It is no different here at Blind Net. If you realize that blind people are normal human beings who simply can't see and that we can do most anything a sighted person can do, (we just use alternative techniques), then you'll almost certainly like what you find here. We DO NOT have, "THE RIGHT ANSWERS", what we do have is a positive philosophy about blindness and it's related issues.

13. Blindness blindness is the lack of vision, or a loss of vision that cannot be corrected with glasses or contact lenses. blindness may be partial, with very limited http://www.healthscout.com/ency/1/003040.html

loadcss('http://www.healthcentral.com/common/styles/ie/ie_healthscout_smallsearchbox.css', 'http://www.healthcentral.com/common/styles/nn/nn_healthscout_smallsearchbox.css'); Search Web Site Medline Get our free newsletter Special Offers TV Specials Learn about an Effective Alzheimer's Medication Bipolar Education Health Center Heart Valve Disease Health Center Osteoarthritis of the Knee Solution Center ... Schizophrenia Education Center Top Features Depression Schizophrenia Breast Cancer Bipolar Resources Healthscout News 3D Health Animations Health Videos Health Encyclopedia ... Drug Library Find a Therapist Enter City or Zip Code: Powered by Psychology Today PR Newswire Read latest Channels Home Today Women Men ... Drug Checker Medical Health Encyclopedia Blindness From Healthscout's partner site on alzheimer's disease , OurAlzheimers.com I need to know about Alzheimer's symptoms. What are the stages of Alzheimer's Disease? Learn about Alzheimer's medications. Injury ... Treatment Blindness Definition: Blindness is the lack of vision, or a loss of vision that cannot be corrected with glasses or contact lenses. Blindness may be partial, with very limited vision, or complete, with no perception of light. People with vision worse than 20/200, or a field of vision of less than 20 degrees in the better eye, are considered legally blind in most states in the U.S. Alternative Names: Loss of vision Text Continues Below Common Causes: Blindness has many causes. In the United States, the leading causes are

14. Questions And Answers About Blindness And Vision Impairments In The Workplace An Estimates vary as to the number of Americans who are blind and visually impaired. According to one estimate, approximately 10 million people in the United http://www.eeoc.gov/facts/blindness.html

The U.S. Equal Employment Opportunity Commission Questions and Answers About Blindness and Vision Impairments in the Workplace and the Americans with Disabilities Act INTRODUCTION The Americans with Disabilities Act (ADA) is a federal law that prohibits discrimination on the basis of disability. Title I of the ADA makes it unlawful for any employer to discriminate against a qualified applicant or employee because of a disability in any aspect of employment. The ADA covers employers with 15 or more employees, including state and local governments. Section 501 of the Rehabilitation Act provides the same protections for federal government employees and applicants. In addition, most states have their own laws prohibiting employment discrimination on the basis of disability. Some of these state laws may apply to smaller employers and provide protections in addition to those available under the ADA. The U.S. Equal Employment Opportunity Commission (EEOC) enforces the employment provisions of the ADA. This is part of a series of question-and-answer documents addressing particular disabilities in the workplace. It explains how the ADA might apply to job applicants and employees with vision impairments. In particular, this document discusses:

15. Blindness Related Resources (Camera Obscura) Index of blindness related resources on the web and beyond. Includes listings of homepages of blind individuals, organizations by and for the blind, http://www.hicom.net/~oedipus/blind.html

Blindness-Related Resources on the Web and Beyond (last updated March 24, 2008) Table of Contents Skip Table of Contents About This Document General Blindness-Related Resources Blindness-Related Emailing Lists ... Adaptive Products and Services (includes screen readers, speech synthesizers, refreshable braille displays, braille embossers, etc. Home Pages of Blind and Visually Impaired Individuals Friends of the Blind Employment-Related Resources Educational Resources Pertaining to Blindness and Vision Loss ... Terra Infirma: Raw Links An Explanatory Note When I first mounted this page on my web site, Camera Obscura This is not , nor is intended to be, an encyclopedic index of blindness-related resources on the 'net... It is merely a collection of links that I have either come to rely upon personally or which I have stumbled across in the course of my own personal webcrawling. They are offered here merely as jumping-off points for the exploration of blindness-related resources, for following any one of the links listed on this page will open a Pandora's box of information. And that , my friends, is the true beauty of hypertext...

16. [Research To Prevent Blindness] Research To Prevent Blindness As a major contributor to the comprehensive effort to treat, prevent and cure glaucoma, Research to Prevent blindness is joining with institutions and http://www.rpbusa.org/

// disable dirty form check for anonymous users - :-) window.onbeforeunload = null; Choose type size A A A The leading voluntary health organization supporting eye research. Research News Gene Therapy Proven Effective for Patients with Inherited Retinal Disease Read more... RPB-Supported Scientist Revolutionizes Gene Research A dramatic new study, supported by Research to Prevent Blindness, questions some of the mechanisms underlying a new class of drugs based on Nobel Prize-winning work designed to fight diseases ranging from macular degeneration to... Read more... Macular Degeneration, Diabetic Retinopathy Reversed Two leading causes of blindness can be reversed or even prevented by drugs that activate a protein found in blood vessel cells. The discovery is an example of basic science research yielding a discovery with direct clinical applications. Read more... New Hope for Regenerating the Human Retina Read more... More RPB News RPB Supports World Glaucoma Day RPB Supports Development of Device for Early Warning of Eye Disease Immune Cell Clues To Age-Related Macular Degeneration RPB Supports Breakthrough Finding In Eye Development, Eye Cancer ... More Vision Resources var gaJsHost = (("https:" == document.location.protocol) ? "https://ssl." : "http://www."); document.write(unescape("%3Cscript src='" + gaJsHost + "google-analytics.com/ga.js' type='text/javascript'%3E%3C/script%3E")); signal(window,"ondomload");

17. Banner Blindness: Old And New Findings (Jakob Nielsen's Alertbox) Users rarely look at display advertisements on websites. Of the 4 design elements that do attract a few ad fixations, one is unethical and reduces the value http://www.useit.com/alertbox/banner-blindness.html

use it.com Alertbox Aug. 2007 Banner Blindness Jakob Nielsen 's Alertbox, August 20, 2007: Banner Blindness: Old and New Findings Summary: Users rarely look at display advertisements on websites. Of the four design elements that do attract a few ad fixations, one is unethical and reduces the value of advertising networks. I've been reluctant to discuss one of the findings from our eyetracking research because the conclusion is that unethical design pays off In 1997, I chose to suppress a similar finding : users tend to click on banner ads that look like dialog boxes, complete with fake OK and Cancel buttons. Of course, instead of being an actual system message such as "Your Internet Connection Is Not Optimized" the banner is just a picture of a dialog box, and clicking its close box doesn't dismiss it, but rather takes users to the advertiser's site. Deceptive, unethical, and #3 among the most-hated advertising techniques . Still, fake dialog boxes got many more clicks than regular banners, which users had already started to ignore in 1997 Can't Hide Usability Findings After much soul-searching, I've now decided to take a different approach and publish our new findings, despite their ethical implications. In reality, it's not possible to suppress research results because anybody who bothers to run the study will get the same findings. There are

18. Ishihara Test For Color Blindness I am color blind, as is about 12 20 percent (depending on whose figures you want to believe) of the white, male population and a tiny fraction of the http://www.toledo-bend.com/colorblind/Ishihara.html

Ishihara Test for Color Blindness Main Page About Color Deficiency Tests for Color Blindness Shareware software for the color blind ... Links to other Sites about Color Deficiency What numbers do you see revealed in the patterns of dots below? I am color blind, as is about 12 - 20 percent (depending on whose figures you want to believe) of the white, male population and a tiny fraction of the female population. Most of these circles are nothing but spots to me. Below are the correct answers to what a person with normal color vision would see - and what I see (and most people with Red-Green color blindness). When you see what we can't see, you may understand why it's so tough to find the right sox and why we like bright colors, which are often identifiable. Normal Color Vision Red-Green Color Blind Left Right Left Right Top Top Spots Middle Middle Spots Bottom Bottom Spots Spots Another interesting color blindness test is below The test to the left is simpler.

19. GUUUI - Navigation Blindness Banner blindness is determined by navigation style. Posting added before you last visit at GUUUI, Banner blindness. Posting added before you last visit at http://www.guuui.com/issues/01_05.php

ISSUE 13 - Q1 2005 Navigation blindness How to deal with the fact that people tend to ignore navigation tools Most web development projects put a lot of effort into the design of navigation tools. But fact is that people tend to ignore these tools. They are fixated on getting what they came for and simply click on links or hit the back button to get there. The navigation tools that have become standard on the web seem to be designed with the ambition to give users the option to go anywhere from everywhere. Menus with links to all the main sections are discretely placed to the left or at the top throughout the site and fold out and drop down to reveal where you are and where you can go. In this way, every page on a website becomes a major traffic junction, where road signs point you in all directions. But people have specific destinations in mind. Above all, they need clear signage along the way to their destinations. Users click on links or hit the back button Two of the world's most well-respected usability experts Jakob Nielsen and Mark Hurst agree on at least one area: Users tend to ignore navigation and don't care where they are in a site structure. They are highly goal-driven and follow a very simple click-link-or-hit-back-button strategy when navigating websites.

20. Face Blind! Bill's Face Blindness (Prosopagnosia) Pages - Introduction The world s only book about face blindness (prosopagnosia), the inability to tell people apart. http://www.choisser.com/faceblind/

Preface This is the world's first (and to date only) book about face blindness. It has been published on the Internet so people in all lands can have access to it readily, and so it can be continuously updated. In these pages, you will find information, much of which is not available anywhere else at this time. Until people with this rare condition began to meet each other on the Internet in mid-1996, assembling this kind of information would not have been possible. Even researchers who have had hopes of specializing in this condition have been frustrated by having seen only a handful of subjects over a lifetime. With the advent of the Internet, face blind people are coming together in heretofore unheard of numbers, and much is being learned with each passing month. This document was first published as "Bill's Face Blindness Pages" in January, 1997, based on information learned in the fall of 1996. Since then, it has grown considerably, to become the document you will now see. Face Blind!

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