Forced duction testing - University of Iowa Forced duction testing Richard C Allen, MD Additional Notes: Length 00:25 This is Richard Allen at the University of Iowa This video demonstrates forced duction testing in a patient who has a left orbital floor fracture Toothed forceps are used to grasp the eye at the inferior rectus insertion On the left, a restriction is noted in the forced duction since that the eye cannot be placed in
Oculoplastic Surgery Techniques Forced duction testing (00:25 ) Forced traction test (00:53 ) Accessory testing Amsler grid (00:30) Color vision testing (00:37) Red top test (00:22) Stereo visual acuity (00:31) Fluorescein staining of the cornea (00:26) Schirmer test (00:28) Eversion of the upper eyelid (00:28) Applying drops (00:17) Placement of a pressure patch (01:00
Thyroid Eye Disease, workup and diagnosis - University of Iowa Diplopia associated with TED is restrictive in nature, which can be determined by forced duction testing Orbital myositis (OM) – OM causes enlargement and inflammation of the muscle body and tendon insertion, rather than just the muscle body, as is the case in TED patients
Repair of orbital floor fracture #2 Repair of orbital floor fracture #2 Richard C Allen, MD, PhD, FACS Additional Notes: Length 04:21 This video demonstrates repair of a left orbital floor fracture Forced ductions are checked which are shown to be restricted in supraduction 4–0 silk sutures are placed through the lower eyelid at the level of the tarsus A lateral canthotomy is then performed with a 15 blade followed by an
Assessment and Management of Ocular Trauma Assessment and management of ocular trauma Iridodialysis The tissues of the eye are organized into concentric rings like an inner tube of a tire When there is blunt trauma, increased intraocular pressure forces the globe to expand which places stress on the concentric rings causing them to stretch With sufficient force, the tissues can tear The black arrow denotes an inferior iris tear from
Mesodiencephalic junction infarct: Localizing a pseudo abducens palsy . . . The findings in our patient of vertical gaze palsy in both up and down gaze, bilateral abduction deficits (likely pseudoabducens palsy) localized to a lesion in the mesodiencephalic junction in the territory supplied by the posterior thalamo-subthalamic paramedian artery, a branch off the tip of the basilar artery MRI confirmed a subacute infarction in this region (See Figure 3A, 3B, 3C, 3D
Microsoft Word - BINOCULAR VISION. doc - University of Iowa According to Hering’s law the movement of the fellow eye will be biphsic, that is, it will move outward simultaneously and symmetrically (version) when the eye under the prism refixates and then will perform a slow fusional movement (duction) in the opposite direction to correct for the image displacement
Internuclear Ophthalmoplegia - University of Iowa Internuclear Ophthalmoplegia Video 1 A characteristic finding seen in an INO is the slow adducting saccades as demonstrated in this video of a right INO Additionally, the adduction deficit and contralateral abducting nystagmus is evident With an INO, patients most commonly complain of horizontal diplopia due to dysconjugate gaze, or less commonly vertical-oblique diplopia resulting from an
Optic Nerve Sheath Fenestration - University of Iowa Transcript This is Richard Allen at the University of Iowa This video demonstrates an optic nerve sheath fenestration in a patient with idiopathic intracranial hypertension The approach here is the medial lid crease A traction suture is placed partial thickness through the superior medial limbus with 7-0 vicryl suture to place the globe in infra and A-B duction A 4-0 silk suture is then