17 Questions
What percentage of the world's population is affected by strabismus?
2.1%
What is the main goal of intervention in strabismus?
To restore alignment and eliminate double vision
What is the term for rapid, simultaneous movements of the eyes that abruptly change the point of fixation?
Saccades
Which structure is involved in the coordination of eye movements?
Medial longitudinal fasciculus
What is the name of the theory that proposes that strabismus is due to excess reflexogenic action?
Motor theory
Who is credited with the 'defect of the fusion faculty' theory of strabismus?
Claude Worth
What is characteristic of Type 1 Duane's Syndrome according to Huber's Classification?
Marked limitation of abduction
What is the main cause of Duane's Syndrome?
Injury or dysfunction in the medial longitudinal fasciculus (MLF)
What is characteristic of Type A Duane's Syndrome according to Brown's Classification?
Limited abduction and less limited adduction
What is the result of Type A Duane's Syndrome according to Brown's Classification?
A divergent deviation and a head posture away from the side of the affected eye
What can be a consequence of untreated Duane's Syndrome?
Cosmetic concerns
What is the classification of strabismus based on the time of onset?
Congenital and acquired
What type of strabismus is characterized by a deviation that is the same in all directions of gaze?
Comitant
What is the classification of strabismus based on the direction of the deviation?
Horizontal, vertical, and cyclotorsional
What type of strabismus is caused by a neurological problem?
Neurogenic
What is the classification of strabismus based on the presence of a deviation in one or both eyes?
Unilateral and bilateral
What type of strabismus is caused by a restriction in the movement of one or more extraocular muscles?
Restrictive
Test your knowledge on the assessment and management of strabismus, a condition affecting 2.1% of the world's population. This quiz covers the definition, anatomy, physiology, and approaches to treating strabismus. Study the cases and recap to improve your skills.
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