What are vergence eye movements?

What are vergence eye movements?

A vergence is the simultaneous movement of both eyes in opposite directions to obtain or maintain single binocular vision.

What condition causes the eyes to oscillate?

Nystagmus is a condition that causes involuntary, rapid movement of one or both eyes. It often occurs with vision problems, including blurriness. This condition is sometimes called “dancing eyes.”

What is saccadic eye movement disorder?

DEFINITION: A sensorimotor anomaly of the oculomotor system whose characteristic feature is the inability to perform accurate, effective ocular saccadic and/or fixational eye movement patterns.

What is vergence in perception?

Convergence is when the eyes turn inward to look at an object close up. The closer the object, the more the eye muscles tense to turn the eyes inward. Information sent from the eye muscles to the brain helps to determine the distance to the object.

What causes rapid eye movements?

Nystagmus is caused by a miscommunication between the eye and the brain and affects the way our brains interpret movement signals from the eye. Nystagmus is typically caused by brain injuries and is a result of brain damage.

What is Refixation saccade?

Refixation saccades are a result of impaired VOR (1). They are defined by an increased eye acceleration >4,000°/s and are visually identified by the vHIT examiner (2).

What is binocular cue?

Binocular cues are visual information taken in by two eyes that enable us a sense of depth perception, or stereopsis. Retinal disparity, also known as binocular parallax, refers to the fact that each of our eyes sees the world from a slightly different angle.

What are examples of binocular cues?

Binocular Cues Examples Binocular cues provide a sense of how far or near an object is in one’s environment; this is the sense of depth perception. A couple of real world binocular cue examples include looking at an object in the distance and knowing how far away the object is.