Eye, absent
Also called anophthalmia, a congenital malformation (birth defect) of the globe. Anophthalmia refers, strictly speaking, to absence of the globe and ocular tissue from the orbit. However, in most cases of anophthalmia, CT scans show some remnants of the globe, indicating they represent severe microphthalmia (small eyes). Anophthalmia/microphthalmia may involve one or both eyes. It may occur in isolation with no associated malformations or it may be part of a multiple congenital malformation syndrome as, for example, the congenital rubella syndrome, the triploidy syndrome (due to the presence of 69 chromosomes), the trisomy 13 syndrome (Patau syndrome, due to an extra chromosome 13), and the Wolf-Hirschorn syndrome (which is due to deletion of part of the short arm of chromosome 4). Anophthalmia comes from the Greek an-, absence + ophthalmos, eye + absence of the eye.

Medical dictionary. 2011.

Look at other dictionaries:

  • Eye color — is a polygenic trait and is determined by the amount and type of pigments in the eye s iris.Wielgus AR, Sarna T. Melanin in human irides of different color and age of donors. Pigment Cell Res. 2005 Dec; 18(6):454 64. PMID 16280011.] Prota G, Hu… …   Wikipedia

  • Eye exercises — are sometimes used in an attempt to correct vision problems. Different views exist regarding the extent of their effectiveness.Helveston EM. Visual training: current status in ophthalmology. Am J Ophthalmol. 2005 Nov;140(5):903 10. PMID… …   Wikipedia

  • eye disease — Introduction  any of the diseases or disorders that affect the human eye (eye, human).       This article briefly describes the more common diseases of the eye and its associated structures, the methods used in examination and diagnosis, and the… …   Universalium

  • eye, human — ▪ anatomy Introduction  specialized sense organ capable of receiving visual images, which are then carried to the brain. Anatomy of the visual apparatus Structures auxiliary to the eye The orbit       The eye is protected from mechanical injury… …   Universalium

  • Eye (cyclone) — Part of a series on Tropical cyclones …   Wikipedia

  • Eye — The organ of sight. The word eye come from the Teutonic auge. The eye has a number of components. These include the cornea, iris, pupil, lens, retina, macula, optic nerve and vitreous. The cornea is the clear front window of the eye that… …   Medical dictionary

  • Absent Friends (Dad's Army episode) — Infobox Dad s Army episode number episode name=032 – Absent Friends script=Jimmy Perry and David Croftcite book|title=The Complete A Z of Dad’s Army|author=Croft, David; Perry, Jimmy; Webber, Richard|date=2000|publisher=Orion|ISBN= 0 75284 637 X] …   Wikipedia

  • Absent eye — Also called anophthalmia, a congenital malformation (birth defect) of the globe. Anophthalmia refers, strictly speaking, to absence of the globe and ocular tissue from the orbit. However, in most cases of anophthalmia, CT scans show some remnants …   Medical dictionary

  • Simple eye in invertebrates — For eye like markings, see eyespot (mimicry). Ocellus redirects here. For the Celtic god, see Ocelus. Head of Polistes A simple eye (sometimes called a pigment pit[1] …   Wikipedia

  • Golden White-eye — Conservation status …   Wikipedia

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”