fovea

(redirected from central fovea of retina)
Also found in: Dictionary, Thesaurus, Encyclopedia.

fovea

 [fo´ve-ah] (pl. fo´veae) (L.)
a small pit or depression often used alone to indicate the central fovea of the retina.
central fovea of retina (fovea centra´lis re´tinae) a small pit in the center of the macula lutea, composed of slim elongated cones; it is the area of clearest vision, because here the layers of the retina are spread aside, permitting light to fall directly on the cones.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

fo·ve·a

, pl.

fo·ve·ae

(fō'vē-ă, fō'vē-ē), [TA]
Any natural depression on the surface of the body, such as the axilla, or on the surface of a bone. Compare: dimple.
Synonym(s): pit (1)
[L. a pit]
Farlex Partner Medical Dictionary © Farlex 2012

fovea

(fō′vē-ə)
n. pl. fo·veae (-vē-ē′)
1. A small cuplike depression or pit in a bone or organ.
2. The fovea centralis.

fo′ve·al (-əl), fo′ve·ate′ (-āt′) adj.
fo′ve·i·form′ (-ə-fôrm′) adj.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

fo·ve·a

, pl. foveae (fō'vē-ă, -ē) [TA]
Any natural depression on the surface of the body, such as the axilla, or on the surface of a bone.
Compare: dimple
[L. a pit]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

fovea

Any shallow cup-like depression. The fovea centralis of the RETINA is the central area of the macula lutea, of highest resolution and free of visible blood vessels.
Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

fovea

an area in the centre of the retina of the eye in which CONES are concentrated and RODS are absent (see Fig. 156 ). In humans, the fovea takes the form of a shallow pit about 1 mm in diameter, there being no layer of nerve fibres over it as there is in the rest of the retina. It occurs in primates, diurnal birds and lizards. It is an area of acute vision, and in BINOCULAR VISION the image of the object observed is focused on both foveae.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005

Fovea

A tiny pit in the macula that is responsible for sharp vision.
Gale Encyclopedia of Medicine. Copyright 2008 The Gale Group, Inc. All rights reserved.

foveola

The base of the fovea centralis with a diameter of about 0.35 mm (or about 1º of the visual field). The image of the point of fixation is formed on the foveola in the normal eye. The foveola contains cone cells only (rod-free area). The foveal avascular zone is slightly larger (about 0.5 mm in diameter) (Fig. F9). Syn. fovea (term often used by clinicians). See eccentricity; fixation; umbo.
Fig. F9 Cross-section of the retina showing the fovea centralis and foveola (rod-free area)enlarge picture
Fig. F9  Cross-section of the retina showing the fovea centralis and foveola (rod-free area)
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

fo·ve·a

, pl. foveae (fō'vē-ă, -ē) [TA]
Any natural depression on body surface or on surface of bone.
Synonym(s): pit (2) .
[L. a pit]
Medical Dictionary for the Dental Professions © Farlex 2012
Full browser ?