Ocular albinism

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Ocular albinism
Classification and external resources
ICD-10 E70.3
ICD-9 270.2
MeSH D016117

Ocular albinism is a form of albinism which, in contrast to oculocutaneous albinism, presents primarily in the eyes.[1] There are multiple forms of ocular albinism, which are clinically similar.[2]:865

Both known genes are on the X chromosome. When the term "autosomal recessive ocular albinism" ("AROA") is used, it usually refers to mild variants of oculocutaneous albinism.[3]

Types[edit]

Name OMIM Gene Description
Ocular albinism, type 1 (OA1) 300500 GPR143 Also known as Nettleship-Falls syndrome,[4][5][6] is the most common variety of ocular albinism. OA1 is usually associated with nystagmus, and difficult to otherwise detect in females; males show more readily observable symptoms.
Ocular albinism, type 2 (OA2) 300600 CACNA1F[7] Also known as Forsius-Eriksson syndrome[8][9] or "Åland Island eye disease", mostly only affects males, though females are often carriers and can sometimes be symptomatic; it is frequently linked with protanopic dichromacy (a form of color blindness) and with night blindness (nyctalopia).
Ocular albinism with sensorineural deafness (OASD) 300650  ? (Xp22.3) Is, as its name implies, associated with loss of hearing. May be the same as OA1.[10]

References[edit]

  1. ^ "Ocular albinism - Genetics Home Reference". 
  2. ^ James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. ISBN 0-7216-2921-0.
  3. ^ Hutton SM, Spritz RA (March 2008). "A comprehensive genetic study of autosomal recessive ocular albinism in Caucasian patients". Invest. Ophthalmol. Vis. Sci. 49 (3): 868–72. doi:10.1167/iovs.07-0791. PMID 18326704. 
  4. ^ synd/990 at Who Named It?
  5. ^ E. Nettleship. On some hereditary diseases of the eye. Transactions of the Ophthalmological Societies of the United Kingdom, 1908-1909, 29: 57-198.
  6. ^ H. F. Falls. Sex-linked ocular albinism displaying typical fundal changes in the female heterozygote. American Journal of Ophthalmology, Chicago, 1951, 34: 41-50.
  7. ^ Jalkanen R, Bech-Hansen NT, Tobias R, et al. (June 2007). "A novel CACNA1F gene mutation causes Aland Island eye disease". Invest. Ophthalmol. Vis. Sci. 48 (6): 2498–502. doi:10.1167/iovs.06-1103. PMID 17525176. 
  8. ^ synd/1336 at Who Named It?
  9. ^ Forsius H, Eriksson AW (April 1964). "[A new eye syndrome with X-chromosomal transmission. a family clan with fundus albinism, fovea hypoplasia, nystagmus, myopia, astigmatism and dyschromatopsia.]". Klin Monatsbl Augenheilkd (in German) 144: 447–57. PMID 14230113. 
  10. ^ Winship IM, Babaya M, Ramesar RS (November 1993). "X-linked ocular albinism and sensorineural deafness: linkage to Xp22.3". Genomics 18 (2): 444–5. doi:10.1006/geno.1993.1495. PMID 8288253. 

External links[edit]