Fixation lets a person look specifically at an object or subject in external space and is made possible by the retinal site of highest resolution. This so-called fovea centralis represents the main direction of vision. Disorders of fixation are present, for example, in strabismus. What is fixation? By the term fixation, ophthalmology refers to the … Fixation: Function, Tasks, Role & Diseases
Divergence is one of the vergence movements of the eyes and corresponds to a disjunctive movement that allows fixation of objects at a distance. The opposite eye movement is convergence, which is used to fixate objects in close proximity. It, too, is a vergence movement. Divergence disorders may refer to neurological damage. What are the … Vergence Movements: Function, Task & Diseases
Eye movements can be divided into active and passive movements. While active eye movements are used to record visual information, passive eye movements are used to diagnose motility disorders. What are eye movements? The human eye in cross-section showing its anatomical components. Click image to enlarge. The totality of all eye movements is also called … Eye Movement: Function, Task & Diseases
In principle, the eyes can be rotated about all three possible axes of rotation in three-dimensional space, within certain limits. Parallel eye movements of both eyes, with identical rotations with respect to the axis of rotation and number of degrees, are called conjugate eye movements. They usually occur unconsciously and arise, for example, as gaze-following … Conjugate Eye Movements: Function, Task & Diseases
