Cover Testing Flashcards
Determine pt’s tropical/phoria and its amount
What is the purpose of a cover test?
Phoria
Two eyes fixate at the same place after any fusional convergence demand has been overcome
Tropia
The two eyes do not fixate the same place under binocular conditions
Phoric
If the unoccluded eye does not move when the paddle is presented, the patient is ____
Phoric
If the patient is ____ both eyes will be fixating at the target w/ or w/o occlusion
Tropic/strabismic
If the unoccluded eye moves when the paddle is presented, the patient is___
Tropic
The patient is ____ if only one eye will focus on the target
exo and eso respectively
In an ACT, if the uncovered eye turns in the patient is ___ but if it turns out the patient is ___
Prism
How do you quantify the amount of phoria or tropia present during an ACT?
Same direction
In a subjective cover test, if the patient is exo, they will report the object moving in the _____ direction as the paddle.
Opposite direction
In a subjective cover test, if the patient is eso, they will report the object moving in the _____ direction of the paddle.
Image, eyes
Prism shifts the ___ of the target towards the lines of sight but does not move the ___ from their phoric/tropic position.
Independent of accommodation
Plus and minus lenses have no effect on vertical eye movements because vertical movements are…
1) phoric demand and not enough fusional vergence to keep fusion or 2) a tropia is present
What are two reasons a patient may report double vision
Crossed/heteronymous
EXOs have ____ diploia
