Increase in focusing power of the eye to maintain a clear image as objects are moved closer. Due to the lens becoming rounder. Natural loss of accommodation with increasing age is called presbyopia.
Focal adjustment of the eye, generally spontaneous, made for the purpose of obtaining maximum visual acuity at various distances.
1. the cognitive process that revises existing schemas to incorporate new information. 2. the process by which the thickness of the lens in the eye changes to focus images of objects located at different distances from the eye. 119, 157
the automatic adjustment of the eye for seeing at different distances, effected chiefly by changes in the convexity of the crystalline lens
The process when the shape of the lens is altered by the action of the ciliary muscles. This allows a change in focus from distance to closeness.
Adjustment of the focus of an image to remain at its sharpest at the retina, irrespective of distance. Variation in focus is achieved by altering the shape of the lens.
Ability of the eye to focus at different distances.
(1) The process by which the lens is thickened or flattened to focus on an object. (2) In Piaget's theory of development, one of the twin processes that underlies cognitive development. See assimilation and accommodation.
Ability of the eye to adjust to variations in distance.
The adjustment of the eye for seeing at near distances, accomplished by altering the shape of the lens through action of the ciliary muscle, thus focusing a clear image on the retina.
A process of the eye's lens altering its focal point to bring distant and closer objects into focus.
(physiology) the automatic adjustment in focal length of the lens of the eye
1. Where you stay 2. A mechanism by which we can get clear sight for both distant and close objects, by getting the image right on the retina. This is achieved by the combined action of the extraocular and ciliary muscles.
The ability of the eye to adjust to close and distant vision
Adjustment of the focusing power of the eye to see objects clearly over a range of distances. Achieved by change in the shape of the crystalline lens. There is a reduction in focusing ability with age (presbyopia).
The function of the eye's ability to focus on a wide range of distances. The lens and ciliary body in the eye change shape allowing the viewed object to be projected onto the retina.
Ability to change and control the focussing of the eye.
Focussing the eye for near vision.
(also known as focusing) The eye's ability to adjust focus on objects at varying distances. See Near point of accommodation and accommodative facility. Behavioral theory suggests that focusing is closely related to the identification mechanism which ensures that the object under scrutiny is the most clearly seen ensuring it remains the center of attention. See near point of accommodation and accommodative facility.
The eye's ability to focus on objects which are closer or further away. When this focusing ability works correctly the eye is able to clearly identify all objects. With age or poor vision, this ability to focus (accommodate) is weakened and does not work correctly.
ability to alter shape of eye's lens to focus it e.g. to maintain focus on a moving close object
change in the eye to keep an image in focus on the retina
Changes in focus of the crystalline lens to adjust the eye for various object distances.
ability of the lens to adjust its shape for vision at various distances in order to produce a clear image on the retina
The ability of the eye to produce sharp images of objects at different distances, by altering the focal length of the eye lens.
the eye's process of adjusting its focus from far to near.
The process by which the focal length of the eye’s lens is changed so that images of objects viewed at any distance are focused on the retina.
the change in the refractive power of the eye seeing at different distances
The automatic adjustment of the eye lens to allow for seeing at different distances.
the ability of the eye to focus.
Latin ad = to, and modus = measure, hence, adaptation of the optical power (focussing) of the eye for shorter distances.
changing the focusing power of the eye by altering the shape of the crystalline lens to focus light from near objects onto the retina to give clear vision at that distance.
the "automatic" adjustment the eye makes in order to focus on objects at different distances.
adjustment of the eye for seeing at different distances, accomplished by contraction or relaxation of the ciliary muscle, changing the shape of the lens, thus focusing a clear image on the retina; accompanied by changes in pupil size
The eye's ability to adjust its focus from distant to near objects. This process is achieved by the lens changing its shape. Go to Top
The act of increasing the dioptic power of the eye by an increase in the power of the crystalline lens to permit objects at different distances to be clearly seen.
Change in the focal length of the eye's lens.
an increase in the refractive power of the natural lens of the eye; it is generally employed while doing near work(e.g.,reading).
Eye's ability to automatically change focus from seeing at one distance to seeing at another.
The ability of the eyes to constantly focus for clarity and interpretation, with both eyes maintaining clarity regardless of changes in position, distance, or posture.
It is the eye's ability to adjust focus of the lens on objects at varying distances.
the ability of the eye to increase its focusing power. As an object is viewed closer up, greater focusing power is needed to continue to see it clearly.
Ability of the eye to change focus between near and far objects. Inability to accommodate results in presbyopia.
is the involuntary act of the eyes' crystalline lens to add extra strength to the vision optical system assisting in the capacity to focus on objects nearby; aging of the crystalline lens causes a reduced accommodative ability called "presbyopia"; strength added to lenses to counter presbyopia is call "the add".
Ability of the lens to change its shape in order to focus vision effectively on objects at different distances from the eye.
A stretching or relaxing of the eye muscles, which causes a change in focal length of the crystalline lens, thereby producing clear images on the retina of objects that are relatively near the eye. Without the ability to accommodate, the image of the object would blur.
The adjustment of the eye to obtain maximal sharpness of the retinal image for an object at which one is looking. One of the important changes involves is in the shape of the eye lens. Click on lens to see diagrams on this topic.
A function of the lens in which it adjusts to keeps near and far objects in focus on the retina.
(uh-kah-muh-DAY-shun). Increase in optical power by the eye in order to maintain a clear image (focus) as objects are moved closer. Occurs through a process of ciliary muscle contraction and zonular relaxation that causes the elastic-like lens to "round up" and increase its optical power. Natural loss of accommodation with increasing age is called presbyopia.
Capacity of the eye to modify its convergence by changing the convexity of the chrystalline lens for seeing objects located at different distances. See the accompanying animation about chrystalline lens accommodation. ( accommodation, n.f)
Adjustments made to focus on objects nearby, including lens thickening, pupil constriction
An alteration in the curvature of the lens of the eye to focus an image on the retina.
The process by which the eye changes focusfrom one distance to another.
Adjustment of the crystalline lens of the eye for seeing at distances less than infinity. The shape of the lens is changed through the action of the ciliary muscles.
The focusing of the eye for seeing at different distances.This is accomplished by changing the shape of the crystalline lens, thus focusing an image on the back of the eye.
focusing of the eyes; focusing must relax to see at a distance and must engage close up - similar to an open hand versus a clenched fist
the ability of the eye to change its focal length. This is accomplished by the muscles around the lens making the lens flatter or more oval in order to refract the light more or less so you can see near and distant objects clearly.
Focusing light by allowing the lens to become more convex ( Ch. 20).
The refocusing of the eyes as their vision shifts from one distance plane to another.
Accommodation is the process by which the :eye increases optical power to maintain a clear image (focus) on the retina.Cassin, B. and Solomon, S. Dictionary of Eye Terminology. Gainsville, Florida: Triad Publishing Company, 1990.