1 An overview of the condition and how it is inherited 2 3 Albinism: Congenital genetic abnormality of melanin synthesis in which the amount of melanin made by the melanocyte is reduced or absent. Always includes specific abnormalities of the eye Oculocutaneous albinism, OCA1- 4 Ocular albinism, OA1 Albinism plus other features, HPS1-N 4 5 6 7 8 9 OCA1 Tyr OCA2 p OCA3 Trp1 OCA4 SLC45A2 10 11 Other Types of Albinism HPS: a group of recessive genetic conditions with albinism (and associated visual impairment), platelet dysfunction, inflammatory bowel disease, and pulmonary fibrosis. People with albinism and any of these other conditions, especially delayed clotting and easy bruising should be evaluated for HPS. Because HPS is more common in Puerto Rico, people with albinism of Puerto Rican ancestry should be screened for HPS. Contact the HPS Network Incorporated, One South Road, Oyster Bay, New York 11771-1905, tel. 1 (800) 789-9HPS 12 Other Types of Albinism OA1: an X-linked form of albinism, primarily affecting the eyes, including the visual impairment common to all forms of albinism. Because it is Xlinked, it affects mostly boys. 13 A discussion of “how we see” and the nature of the visual impairment associated with albinism 14 Common Ocular Features of Albinism • • • • • • Reduction in iris & retinal pigment Iris translucency Foveal hypoplasia Misrouting of optic nerves at chiasm Nystagmus Alternating strabismus 15 Optic Misrouting in Albinism Optic pathways in humans Pigmented Albinism Nasal Temporal Nasal Temporal Uncrossed Crossed fibers fibers Uncrossed Crossed fibers fibers 45% <10% 55% >90% 16 17 Normal Retina Fovea Albino Retina Missing Fovea 18 19 Matt Matt 20 Reading distance - 6 inches 21 Lack of detail Light sensitivity Nystagmus “My world doesn’t actually shake.” Poor depth perception 22 An introduction to the world’s largest charitable support organization serving the albinism community 23 To provide information and support to the albinism community To encourage better diagnosis and management of albinism To educate the public about albinism often combating myths and misconceptions 24 National conference Mini conferences Magazine Website/web boards Information bulletins 800 number Rapid Responder program Family camps Parent toolbox Parent book 25 A brief look at the ways in which albinism not only affects the way a person sees but how he or she is seen by others 26 Self-esteem “Stares, smirks & shout-outs” Employment Unique concerns in communities of color Stigma of difference Parenting a special needs child 27 Special considerations for students with albinism in the mainstream classroom 28 Seating Lighting & glare Aids High-tech Low-tech Materials for reading and writing Testing accommodations Large print 29 A look at some of the commonly held myths surrounding albinism 30 Stigma of difference Film and literature stereotypes Common myths in western cultures Albinism in other cultures 31 The National Organization for Albinism & Hypopigmentation (NOAH) PO Box 959 East Hampstead, NH 03826-0959 Phone: 800 473-2310 (US and Canada) or 603 887-2310 Fax: 800-648-2310 Web site: www.albinism.org Email: info@albinism.org 32