Introduction to Ocular Motility Extraocular Muscles EOM ...

More documents

Recommendations

Info

Brown syndrome Limited elevation in adduction SO palsy Limited depression in adduction Over-action of IO Duane - Type I Incomitant ET due to 6th CN palsy. Abduction deficit to the effected side. Narrowing of the palpebral fissures on adduction of the effected eye. CN III palsy Limited upgaze, downgaze, & adduction V pattern XT Recording Under-actions and Over-actions 50% 70 % + 3 -2 4
Vergence Disconjugate movements of the eyes. Movement in opposite directions. Convergence Convergence – Both eyes turn in Divergence Divergence – Both eyes turn out Vertical Vertical vergence – One eye moves up, the other down Strabismus Ocular misalignment that prevents bifoveal fixation. Non-parallel Non parallel visual axes. Fixation Central Fixation Using Using the fovea to fixate Eccentric Fixation Using Using a non-foveal non foveal retinal point to fixate Bifoveal fixation Using Using both foveas to fixate the same object at the same time. Convergence amplitudes Measure with base out prism bar at distance and near. Minimum normal 20 prism diopter at near 12 at distance Fixation Maintaining the position of the eye so that the image of the object of regard falls on the fovea. Fovea Central Fixation 5
Page 1 and 2: Introduction to Ocular Motility Dia
Page 3: Ductions and Versions Versions - M
Page 7 and 8: Intermittent Strabismus X(T) Strabi
Page 9 and 10: Hirschberg Corneal Light Reflex Tes
Page 11 and 12: X 1. 2. f PACT - Exophoria f 3. Mad
Page 13: Acquired strabismus Palsies and Re

Introduction to Ocular Motility Extraocular Muscles EOM ...

Create successful ePaper yourself

Delete template?

Save as template?