- letter blindness
- alexia characterized by inability to recognize individual letters.
Medical dictionary. 2011.
Medical dictionary. 2011.
blindness — 1. Loss of the sense of sight; absolute b. connotes no light perception. SEE ALSO: amblyopia, amaurosis. 2. Loss of visual appreciation of objects although visual acuity is normal. 3 … Medical dictionary
Color blindness — Colorblind and Colourblind redirect here. For other uses, see Colorblind (disambiguation). Color blindness or color deficiency Classification and external resources An 1895 illustration of normal vision and various kinds of color blindness … Wikipedia
Text blindness — Text Text (t[e^]kst), n. [F. texte, L. textus, texture, structure, context, fr. texere, textum, to weave, construct, compose; cf. Gr. te ktwn carpenter, Skr. taksh to cut, carve, make. Cf. {Context}, {Mantle}, n., {Pretext}, {Tissue}, {Toil} a… … The Collaborative International Dictionary of English
Text letter — Text Text (t[e^]kst), n. [F. texte, L. textus, texture, structure, context, fr. texere, textum, to weave, construct, compose; cf. Gr. te ktwn carpenter, Skr. taksh to cut, carve, make. Cf. {Context}, {Mantle}, n., {Pretext}, {Tissue}, {Toil} a… … The Collaborative International Dictionary of English
Education of the Blind — • Includes statistics and history Catholic Encyclopedia. Kevin Knight. 2006. Education of the Blind Education of the Blind … Catholic encyclopedia
Visual acuity — 20/15 and 20/15 vision redirect here. For other uses, see 2020 (disambiguation). Typical Snellen chart used for visual acuity testing. Visual acuity (VA) is acuteness or clearness of vision, which is dependent on the sharpness of the retinal… … Wikipedia
literature — /lit euhr euh cheuhr, choor , li treuh /, n. 1. writings in which expression and form, in connection with ideas of permanent and universal interest, are characteristic or essential features, as poetry, novels, history, biography, and essays. 2.… … 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
Dyslexia — This article is about developmental dyslexia. For acquired dyslexia, see Alexia (acquired dyslexia). Dyslexia Classification and external resources ICD 10 R48.0 ICD 9 … Wikipedia
Lasers and aviation safety — Under certain conditions, laser light or other bright lights (spotlights, searchlights) directed at aircraft can be a hazard. The most likely scenario is when a bright visible laser light causes distraction or temporary flash blindness to a pilot … Wikipedia