21. Achromatopsia achromatopsia. achromatopsia Philosophical Psychopathology. achromatopsia Network,The. What Is achromatopsia? THE achromatopsia NETWORK. WHAT IS achromatopsia. http://www.ability.org.uk/Achromatopsia.html

Our Aims Services Stats ... Z Achromatopsia Achromatopsia Philosophical Psychopathology Achromatopsia Network, The What Is Achromatopsia? THE ACHROMATOPSIA NETWORK ... Webmaster . Site Design by Ability "see the ability, not the disability" Acknowledgments

22. Welcome To InteliHealth achromatopsia. Color blindness takes many forms. The most severe is achromatopsia,a partial or complete lack or dysfunction of the cone cells. http://www.intelihealth.com/hope/htmH27index.html

Achromatopsia Color blindness takes many forms. About one in ten boys and one in 250 girls are born with red-green color blindness, which is usually no more than an annoyance. But color blindness has much more seriousthough much rarerforms. The most severe is achromatopsia, a partial or complete lack or dysfunction of the cone cells. These are the color-sensing cells in the retina in the back of the eye. People with achromatopsia can see little or no color. They also never develop sharp vision; they are especially limited in their ability to see at a distance. Most are legally blind, with visual acuities around 20/200. This inherited disorder affects about 1 person in 33,000. Most patients are diagnosed as children. The main symptom of achromatopsia is extreme sensitivity to light (photophobia). Patients are blinded by the sun when they're outdoors. Some are so sensitive to light that they're uncomfortable even indoors in a normally lit room. The condition is hard to diagnose because the back of the eyes usually look normal when the doctor checks them. The diagnosis is made by the person's symptoms and an electroretinogram, which must be done at a special clinic. While there is no cure, the symptoms can be managed. Patients can control glare by wearing wraparound sunglasses and a broad-brimmed hat. An eye doctor can prescribe tinted contact lenses that cut glare and let patients see more clearly (the young boy in the TV spot got red lenses). Patients may also benefit from low vision rehabilitation, which may also include occupational therapy, orientation and mobility instruction (to learn safe walking and travel skills), social work, genetic counseling, and consultation with a teacher of the visually impaired.

23. Qango : Health: Diseases And Conditions: A: Achromatopsia Qango Directory achromatopsia all of Qango only this category Options Help.Home Health Diseases and Conditions A achromatopsia, Suggest a Site. http://www.qango.com/dir/Health/Diseases_and_Conditions/A/Achromatopsia/

Chat Forums Free Email Personals Classifieds ... Help Qango Directory Achromatopsia all of Qango only this category Options Help Home Health ... A > Achromatopsia Suggest a Site Health, etc If you would like to suggest a site for this category please click here Home Health Diseases and Conditions ... A > Achromatopsia Suggest a Site Home Suggest a Site Search ... Login

24. Understanding Achromatopsia Understanding achromatopsia. Laura Indiana. achromatopsia is an inheritedcondition that affects approximately 1 in every 33,000 Americans. http://www.eyeassociates.com/understanding_achromatopsia.htm

Understanding Achromatopsia Laura K. Windsor, O.D. and Richard L. Windsor, O.D. The Low Vision Centers of Indiana Achromatopsia is an inherited condition that affects approximately 1 in every 33,000 Americans. It is also known as rod monochromatism. This condition is associated with color blindness, visual acuity loss, extreme light sensitivity and nystagmus. It is a condition found throughout the world with varying incidence. There are two primary forms, the complete achromatopsia and incomplete achromatopsia. Complete Achromatopsia Achromatopsia means “without color” and is defined as little or no function of the cone cells. Persons with achromatopsia are only able to perceive black, white and shades of gray. Patients with complete achromatopsia have no real understanding of the concept of color. A color like red may be perceived as dark gray while yellow may be perceived as a light gray. The vision is much like that of a black and white photograph with varying shades of gray. Incomplete Achromatopsia Patients with incomplete achromatopsia have profound color impairment, but do have a small residual amount of color vision and slightly better visual acuity due to the presence of some functioning cone cells in the retina.

25. Achromatopsia achromatopsia. Introduction to achromatopsia. Understanding Patients. HelpWith Watching Television. Low Vision Aids for achromatopsia Patients. http://www.eyeassociates.com/achromatopsia.htm

Achromatopsia Introduction to Achromatopsia Understanding Achromatopsia Laura K. Windsor, O.D. and Richard L. Windsor O.D. Vision Enhancement Magazine Red Central Contact Lenses Aid Achromatopsia and Cone Dystrophy Patients Help With Watching Television Low Vision Aids for Achromatopsia Patients All of these low vision devices are available through the Low Vision Centers of Indiana. Closed Circuit Television Systems PVA: The Doctor’s CCTV Jordy II Amazing New CCTV Flipper: New Concept in CCTVs Aladdin and Aladdin Rainbow ... The Magni-Cam™ TRIAD Bioptic Telescopes Autofocus Ocutech Vision Enhancement System Ocutech Vision Enhancement System (Manual Focus) Beecher Mirage 4x Beecher Mirage 7x ... Wide Angle/Designs for Vision Handheld Telescopes Walters Systems Kettelwell Handle Telescopic Reading Eyewear Galilean Reading Telescopes Expanded Field Reading Telescopes Beecher Mirage with Caps Keeler Multi-Cap Magnifiers General Principles of Magnifiers Halogen vs. Standard Light

26. MedWebPlus Web Site ID 8020 Welcome to MedWebPlus 2.3! A free service to help you find health sciences informationquickly and easily. achromatopsia Network. http//www.achromat.org/ http://www.medwebplus.com/obj/8020

27. Achromatopsia And The Underlying Bioelectrochemistry DETERMINING THE BIOLOGICAL (FUNCTIONAL) LOCUS OF achromatopsia AS A SYNDROMEbased on. HOW CAN ALL OF THE SYMPTOMS OF achromatopsia BE CAUSED AT ONCE. http://www.4colorvision.com/clinical/achromatopsia.htm

DETERMINING THE BIOLOGICAL (FUNCTIONAL) LOCUS OF ACHROMATOPSIA AS A SYNDROME based on PROCESSES IN BIOLOGICAL VISION by JAMES T. FULTON Last Update 01 Nov 01 Rhodonine and Activa are trademarks A CAUTION There must be a distinct line between the medical and biological aspects of syndromes as serious as achromatopsia. This material should not be considered medical advice. Subjects aware of this syndrome should speak with their doctor. This webpage does not offer any alleviation of these symptoms in the near future. Because of the currency of some of the material presented below, students subject to rote testing based on the content of their textbooks are encouraged to review the Cautions Page before proceeding. Others may find the material controversial. However, the results speak for themselves. INTRODUCTION Achromatopsia (with an s) is a stationary congenital disease that is easily recognized in the clinic. It typically presents four different individual symptoms: Photophobia Nystagmus Amblyopia Achromatopia (without an s) However, the severity of these individual symptoms may vary from very severe (complete) cases to less severe (incomplete) cases. The incomplete cases can vary widely.

28. Health Library: All Topics: A: Achromatopsia - Healthfinder® displaying 1–1 of 1 document see categories and related topics, Whatis achromatopsia? A description patie details achromatopsia Network. http://www.healthfinder.gov/Scripts/SearchContext.asp?topic=5

29. Healthfinder® — What Is Achromatopsia? A description of congenital achromatopsia a rare hereditary vision disorder including symptoms and diagnosis with some emphasis on the different http://www.healthfinder.gov/Scripts/ShowDocDetail.asp?doc=4508&lang=1

30. Hemi-achromatopsia Hemiachromatopsia. Previous slide, Next slide,Back to first slide, View graphic version. http://www.science.mcmaster.ca/Psychology/psych3j03/vision/tsld036.htm

Hemi-achromatopsia Previous slide Next slide Back to first slide View graphic version

31. Hemi-achromatopsia First Previous Next Last Index Home Text. Slide 36 of 40. http://www.science.mcmaster.ca/Psychology/psych3j03/vision/sld036.htm

32. Achromatopsia Information Page Diseases Database achromatopsia Information Page. achromatopsia Goachromatopsia specific sites. GoSendachromatopsia to medical search engines (JavaScript enabled browsers only). http://www.diseasesdatabase.com/sieve/item1.asp?glngUserChoice=83

33. Achromatopsia HOME achromatopsia. achromatopsia Network Newsletter; The achromatopsiaNetwork; The achromatopsia Group; Incomplete and Complete achromatopsia; http://www.bdid.com/achromatopsia.htm

HOME Achromatopsia Achromatopsia Network Newsletter The Achromatopsia Network The Achromatopsia Group Incomplete and Complete Achromatopsia ... Achromatopsia Sunglasses Congenital ACROMATOPSIA CONGENITA Hemi- Hemi-achromatopsia Incomplete X-Linked (Blue Cone Monochromatism; Cone Dystrophy, X-Linked) Achromatopsia incomplete, X-linked HOME

34. A To Z Encyclopedia Topic: Achromatopsia Retinal Program. Unfortunately, at this time, we are not able to provideinformation about this condition or procedure. However, we http://web1.tch.harvard.edu/cfapps/A2ZtopicDisplay.cfm?Topic=Achromatopsia

35. Central Achromatopsia Central achromatopsia, associative visual agnosia, and prosopagnosiadue to fusiform gyrus infarction A case report. A. OGATA, S http://www.kufm.kagoshima-u.ac.jp/~rehabil/koza/jobs/achromatopsia.html

Central achromatopsia, associative visual agnosia, and prosopagnosia due to fusiform gyrus infarction: A case report A. OGATA, S. TOHGO, M. KAWATSU, K. KAWAHIRA, N. TANAKA Department of Rehabilitation and Physical Medicine, Faculty of Medicine, Kagoshima University, Japan. Abstract: These symptoms, combined with the CT and MRI findings, suggest that the (right) fusiform gyrus, as well as area V4 as noted in monkey studies, is important in the transaction or transmission of visual information about objects, faces, and colors. Additionally, the preservation of visuospatial cognition in the present case suggests that the projection to the parietal lobe from the occipital lobe for visuospatial cognition diverged before the fusiform gyrus. The recovery of color cognition is understandable in the present case given the large number of cells in this region which are sensitive to red color. Author's information (in Japanese) is here. For detailed information, please see _ŒoS—Šw

36. Encyclopedia - Achromatopsia Congenital achromatopsia is not progressive, and it does not lead to blindness.What causes achromatopsia? What are the signs of achromatopsia? http://www.visionrx.com/library/enc/enc_achromatopsia.asp

Health Center Dictionary Encyclopedia Innovation Spotlight ... Eye Care Library Encyclopedia - Achromatopsia What causes achromatopsia? What are the signs of achromatopsia? How is achromatopsia managed? Achromatopsia is a congenital eye defect that results in severe color blindness, poor detail vision, and photophobia, which is sensitivity to light. A hereditary condition, it occurs in 1 of 33,000 people in the United States, and it is more likely to occur in men than women. Congenital achromatopsia is not progressive, and it does not lead to blindness. What causes achromatopsia? The cells that make up the retina are responsible for the ability to see detail, brightness, and color. There are two types of photoreceptor cells in the cornea rods and cones. The rods specialize in work at low light levels, and the cones provide sharp vision, color, and contrast discrimination. People with achromatopsia have defective cone cells and must rely on their rod photoreceptors for vision. In normal eyes, there are about 6 million cone photoreceptors, located mainly in the macula at the center of the retina . These cells are primarily responsible for sharp, straight-ahead vision and also for the ability to distinguish colors. There are 100 million rod receptors, located mostly at the periphery of the retina. The rods are more sensitive to light than cones are, but rods are not able to differentiate among colors, nor can they perceive shades of gray, black, and white. (

37. Encyclopedia - Achromatopsia To print this page, select Print from your browser's File menu. Encyclopedia achromatopsia. blindness. What causes achromatopsia? http://www.visionrx.com/library/enc/enc_achromatopsia.asp?print=1&

38. Re: RE: Achromatopsia And Any Drivers? Re RE achromatopsia and any drivers? Follow Ups Post Followup LowVision Driving In Reply to Re RE achromatopsia and any drivers? http://www.biopticdriving.org/archive/webboard/driving/messages/1691.html

Re: RE: Achromatopsia and any drivers? Follow Ups Post Followup Low Vision Driving Posted by John Knox on August 22, 2001 at 10:35:24 AM EDT: In Reply to: Re: RE: Achromatopsia and any drivers? posted by Simon Phillips on August 22, 2001 at 05:38:45 AM EDT: Now to answer the question (which is based on information I gathered from the publication "Understanding and Coping with Achromatopsia"), there are very few persons diagnosed with achromatopsia who have sufficient vision to become drivers. The average visual acuity of persons with achromatopsia ranges from 20/160 to 20/200; there is a wide range of visual functioning among persons diagnosed with achromatopsia. In addition to the individual's range of acuity, much will also depend on the degree of photophobia (sensitivity to light) which can also greatly affect daytime acuity. For example, my 4-yr-old functions quite normally indoors and many people don't even realize he is visually impaired (indoors); but as soon as he is outdoors in daylight, even with dark sunglasses, it becomes quite apparent that he has greatly reduced acuity. I believe that those people with achromatopsia who do drive are likely "incomplete achromats" meaning that there is some degree of functioning cone photoreceptor cells in the retina. Traits to look for that "might" indicate a future in driving would include: a high degree of visual functioning, minimal photophobia, ability to easily use monocular aids, and a long-term demonstration in daytime orientation and mobility such as bike riding, skating, etc, especially.

39. RE: Achromatopsia And Any Drivers? RE achromatopsia and any drivers? Follow Ups Post Followup Low VisionDriving Thank you. Follow Ups Re RE achromatopsia and any drivers? http://www.biopticdriving.org/archive/webboard/driving/messages/1689.html

RE: Achromatopsia and any drivers? Follow Ups Post Followup Low Vision Driving Posted by Stacey on August 21, 2001 at 11:52:26 PM EDT: I was curious to know if anyone noticing this site has been diagnosed with complete achromatopsia, and if so, are there any drivers out there w/ the help of bioptic lenses or otherwise that could give myself and my 13 year old son any hope that he could drive some day. This eye condition is so rare, that information regarding it, can be hard to find. ANY information regarding driving and achromaptopsia would be GREATLY appreciated. Thank you. Follow Ups: Re: RE: Achromatopsia and any drivers? William Park 05:22:59 PM 08/28/01 Re: RE: Achromatopsia and any drivers? Simon Phillips 05:38:45 AM 08/22/01 Re: RE: Achromatopsia and any drivers? John Knox 10:35:24 AM 08/22/01 Re: RE: Achromatopsia and any drivers? Michael Zaleski 12:05:57 PM 08/22/01 Re: RE: Achromatopsia and any drivers? Randy Willoughby 10:18:47 PM 08/27/01 Post a Followup Name: E-Mail: Subject: Comments: : I was curious to know if anyone noticing this site has been diagnosed with complete achromatopsia, and if so, are there any drivers out there w/ the help of bioptic lenses or otherwise that could give myself and my 13 year old son any hope that he could drive some day. This eye condition is so rare, that information regarding it, can be hard to find. ANY information regarding driving and achromaptopsia would be GREATLY appreciated. Thank you.

40. Experts, Consultants, Authorities - Achromatopsia Specialty achromatopsia. AMFS, Inc. (American Medical Forensics).2640 Telegraph Avenue Berkeley, California 94704 Tel 800275-8903 http://www.hgexperts.com/listing/Medical-Experts-Achromatopsia.asp

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