Abnormalities of the extraocular muscles Flashcards
A misalignment of the eyes that may cause vision to be disturbed; occurring when the extraocular muscles do not work in a coordinated manner is called?
Strabismus
What is a common complaint of patients with strabismus?
Diplopia (double vision)
Strabismus can be classified by the direction of the misalignment, what are these deviations called?
Exo deviation-Outward
Eso deviation-Inward
An obvious (manifest) misalignment of the eyes is called a?
Tropia
A tendency toward ocular misalignment that is held in check by the fusional effort of the extraocular muscles is
Phoria
What are common treatments for congenital strabismus?
Prescription glasses, patching, penalization of the dominant eye with drops, surgical intervention
What are visual risks when left untreated?
loss of binocular vision and stereopsis (3D visual perception)
At what age is Amblyopia often permanent?
Age 7+
A condition in which the eyes shift involuntarily in a rhythmic beating motion is called?
Nystagmus
Nystagmus indicates there is a problem with the ____ and NOT with the extraocular muscles
Brain
The inward deviation of the eye that is present ONLY when one eye is covered
EsoPHORIA
The inward deviation of the eye in which the eyes are misaligned even when uncovered
EsoTROPIA
The outward deviation of the eye that is present ONLY when one eye is covered
ExoPHORIA
The outward deviation of the eye in which the eyes are misaligned even when uncovered
ExoTROPIA
Decreased vision present without apparent abnormalities in the ocular anatomy and uncorrectable by GLS/CLS
Amblyopia
