Sensorimotor and Visual Efficiency Flashcards
This is the process by which stimuli seen separately by 2 eyes are combined into a unitary percept.
Sensory Fusion
This is the relative movements of the 2 eyes in response to disparate retinal stimuli to obtain fusion.
Motor fusion
This type of amblyopia shows less suppression in patients with strabismus.
Deep amblyopia
This type of amblyopia shows the strongest suppression in pxs with strabismus.
Shallow or no amblyopia
Which suppression theory states an elliptical D-shaped suppression zone is present?
Classical theory
Which suppression theory states the suppression zone is the entire retina of deviating eye.
Pratt-Johnson
What are the degrees for foveal, cenral and peripheral suppression zones?
fovea = <1 degree Central = 1-5 degrees Periph = > 5 degrees
The more unnatural condition supression is found in, the ____ the suppression.
deeper
This intensity of suppression is found only under natural conditions (free space, in-instrument, filters).
Shallow
This intensity of suppression is present under most of all conditions.
Deep
What’s easier to treat? Shallow or Deep?
Shallow
What are 3 types of out-of-instrument testing?
- W4D
- Bagolini
- 4pd BO test
What type of patients do you do out-of-instrument testing on?
- Heterophoric patients; Intermittent strab pxs w/ good motor fusion
During W4D testing, if the px suppresses with lights on only, what intensity is this?
shallow
During W4D testing, if the px suppresses in the dark, what intensity is this?
Deep
