Adaptica 2WIN User Manual

9
3 Glossary
Accommodation:
The power (or ability) of the eye to alter the shape of its
lens so that it can adjust the focus of the eye for distance
and closeness.
Anisometropia
A condition in which the refractive power of the eyes
is unequal.
Astigmatism
A condition in which the optical (or outer) surfaces of the
eye are distorted so that light rays are not sharply
focused on the retina for either near or distant vision.
Auto Shutdown
A procedure whereby 2WIN stops to work and switches
off automatically.
Auxiliary window
Graphical window that displays additional data.
Binocular vision
The use of both eyes simultaneously in such a manner
that each retinal image contributes to the final percept of
a single image.
Diopter
The refractive power of a lens. It is used as a unit of
measurement in refraction.
Esophoria
A tendency for the eyes to turn inward, when fusion is
suspended.
Esotropia
Marked turning inward of the eye; crossed eyes.
Exophoria
A tendency for the eyes to turn outward, when fusion is
suspended.
Exotropia
Divergent strabismus; abnormal turning outward of one
or both eyes.
Fixation
Movement of the eyes so that the visual axes meet and
the image of an object falls on the corresponding points
of each retina.
Focal point
The point to which rays are converged after passing
through a lens.
Heterophoria
A tendency for deviation of the eyes, when fusion is
suspended.
Heterotropia
A manifest deviation of the eyes resulting from the
absence of binocular equilibrium.
Hypermetropia
Hyperopia.

Adaptica 2WIN Specifications

General

Brand	Adaptica
Model	2WIN
Category	Measuring Instruments
Language	English