Moran CORE

Open source ophthalmology education for students, residents, fellows, healthcare workers, and clinicians. Produced by the Moran Eye Center in partnership with the Eccles Library

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How to Measure the RAPD

Home / Neuro-Ophthalmology / Causes of Pupillary Abnormalities

Title: How to Measure the Relative Afferent Pupillary Defect (RAPD)
Author: Kathleen B. Digre, M.D., Professor of Ophthalmology and Neurology, Director of Neuro-Ophthalmology, Moran Eye Center, University of Utah School of Medicine
Date: 03/03/2015
Keywords/Main Subjects: RAPD; Afferent pupillary defect; Pupil examination; Neutral density filter
Secondary CORE Category:  Neuro-Ophthalmology / Decreased Vision: Evaluation / Examination
Diagnosis: None
Brief Description: This is a video presentation of the examination technique for a relative afferent pupillary defect and measuring the size of the defect using neutral density filters.
Format: video
Series: Moran-NOVEL Collection
Identifier: Moran_CORE_15387
Copyright statement: Copyright 2015. Please see terms of use page for more information.


Dilation Lag

Home / Neuro-Ophthalmology / Causes of Pupillary Abnormalities

Title: Dilation Lag
Author: Kathleen B. Digre, M.D., Professor of Ophthalmology and Neurology, Director of Neuro-Ophthalmology, Moran Eye Center, University of Utah School of Medicine
Date: 03/03/2015
Keywords/Main Subjects: Dilation lag, Horner’s syndrome, Anisocoria Horner’s syndrome
Diagnosis: Dilation Lag
Brief Description: This video shows the dilation lag and anisocoria of the pupil seen in Horner’s syndrome.
Format: video
Series: Moran-NOVEL Collection
Identifier: Moran_CORE_15382
Copyright statement: Copyright 2015. Please see terms of use page for more information.


Sector Palsies and Light-Near Dissociation

Home / Neuro-Ophthalmology / Causes of Pupillary Abnormalities

Title: Sector Palsies and Light-Near Dissociation
Author: Kathleen B. Digre, M.D., Professor of Ophthalmology and Neurology, Director of Neuro-Ophthalmology, Moran Eye Center, University of Utah School of Medicine
Date: 03/03/2015
Keywords/Main Subjects: Sector palsies; Pupillary sector palsy; Light-near dissociation; Adie’s pupil; Parasympathetic denervation; Adie’s Pupil
Diagnosis: Sector palsies and light-near dissociation
Brief Description: This video shows the light-near dissociation and segmental palsy of the pupil constrictor seen in Adie’s pupil. It also demonstrates the technique of using trans-illumination using an infrared light to show more clearly the segmental palsy defects.
Format: video
Series: Moran-NOVEL Collection
Identifier: Moran_CORE_15379
Copyright statement: Copyright 2015. Please see terms of use page for more information.


Duane’s Retraction Syndrome Type 1; Lid retraction

HomePediatric Ophthalmology and Strabismus / Exodeviations

Title: Duane’s Retraction Syndrome Type 1; Lid Retraction
Author: Kathleen B. Digre, M.D., Professor of Ophthalmology and Neurology, Director of Neuro-Ophthalmology, Moran Eye Center, University of Utah School of Medicine
Date: 03/03/2015
Secondary CORE Categories: Neuro-ophthalmology/Evaluation of Diplopia/Differentiating Paretic From Restrictive Etiologies of Diplopia
Keywords / Main Subjects: Duane’s Syndrome; Duanes Syndrome type 1; Globe retraction; diplopia
Diagnosis: Duane’s Syndrome
Brief Description: This is a video showing the eye movements characteristic of Duane’s Syndrome type 1 and demonstrating the examination techniques for diagnosing Duane’s Syndrome.
Format: video
Series: Moran-NOVEL Collection

Identifier: Moran_CORE_15368
Copyright statement: Copyright 2015. Please see terms of use page for more information.


Duane’s Syndrome Type 2: Aberrant Regeneration of the Third and Sixth Nerves

Home / Pediatric Ophthalmology and Strabismus / Special Forms of Strabismus

Title: Duane’s Syndrome Type 2: Aberrant Regeneration of the Third and Sixth Nerves
Author: Kathleen B. Digre, M.D., Professor of Ophthalmology and Neurology, Director of Neuro-Ophthalmology, Moran Eye Center, University of Utah School of Medicine
Date: 03/03/2015
Keywords/Main Subjects:
Diagnosis: None
Brief Description:
Format: video
Series: Moran-NOVEL Collection
Identifier: Moran_CORE_15363
Copyright statement: Copyright 2015. Please see terms of use page for more information.


Duane’s Retraction Syndrome Type 3

HomePediatric Ophthalmology and Strabismus / Exodeviations

Title: Duane’s Retraction Syndrome Type 3
Author: Kathleen B. Digre, M.D., Professor of Ophthalmology and Neurology, Director of Neuro-Ophthalmology, Moran Eye Center, University of Utah School of Medicine
Date: 03/03/2015
Secondary CORE Categories: Neuro-ophthalmology/Evaluation of Diplopia/Differentiating Paretic From Restrictive Etiologies of Diplopia
Keywords / Main Subjects: Duane’s Syndrome type 3; Globe retraction; Bilateral Duane’s syndrome;
Diagnosis:  Duane’s Syndrome type 3
Brief Description: This is a video showing the characteristic features of Duane’s Syndrome Type 3.
Format: video
Series: Moran-NOVEL Collection
Identifier: Moran_CORE_15359
Copyright statement: Copyright 2015. Please see terms of use page for more information.


Light-Near Dissociation

Home / Neuro-Ophthalmology / Causes of Pupillary Abnormalities

Title: Light-Near Dissociation
Author: Kathleen B. Digre, M.D., Professor of Ophthalmology and Neurology, Director of Neuro-Ophthalmology, Moran Eye Center, University of Utah School of Medicine
Date: 03/03/2015
Keywords/Main Subjects: Light-near dissociation; Neurosyphilis; Argyll-Robertson pupil
Diagnosis: Light-near dissociation
Brief Description: This video shows the light-near dissociation characteristic of the Argyll-Robertson pupil found in neurosyphilis.
Format: video
Series: Moran-NOVEL Collection
Identifier: Moran_CORE_15356
Copyright statement: Copyright 2015. Please see terms of use page for more information.


Paradoxical Constriction of Pupils to Darkness (Flynn Phenomenon)

Home / Neuro-Ophthalmology / Causes of Pupillary Abnormalities

Title: Paradoxical Constriction of Pupils to Darkness (Flynn Phenomenon)
Author: Kathleen B. Digre, M.D., Professor of Ophthalmology and Neurology, Director of Neuro-Ophthalmology, Moran Eye Center, University of Utah School of Medicine
Date: 03/03/2015
Keywords/Main Subjects: Paradoxical constriction of the pupil, Flynn phenomenon, CSNB, Leber’s congenital amaurosis, Achromatopsia, Paradoxical constriction of pupils to darkness
Diagnosis: Paradoxical constriction of pupils to darkness (Flynn phenomenon)
Brief Description: This video shows the the paradoxical constriction of pupils to darkness (Flynn phenomenon) seen in severe congenital retinal dystrophies such as Leber’s congenital amaurosis and others.
Format: video
Series: Moran-NOVEL Collection
Identifier: Moran_CORE_15350
Copyright statement: Copyright 2015. Please see terms of use page for more information.


Third Nerve Palsy, Pupil Involving

HomeNeuro-Ophthalmology / Evaluation of Diplopia

Title: Third Nerve Palsy, Pupil Involving
Author: Kathleen B. Digre, M.D., Professor of Ophthalmology and Neurology, Director of Neuro-Ophthalmology, Moran Eye Center, University of Utah School of Medicine
Date: 03/03/2015
Keywords/Main Subjects: Third nerve palsy; Pupil involving third nerve palsy; Anisocoria; Primary deviation; Secondary deviation
Diagnosis: Pupil involving 3rd nerve palsy
Brief Description: This video shows the characteristic eye movements and pupillary findings of a pupil involving third nerve palsy. Primary and secondary deviation are also shown.
Format: video
Series: Moran-NOVEL Collection
Identifier: Moran_CORE_15345
Copyright statement: Copyright 2015. Please see terms of use page for more information.


Aberrant Regeneration of Third Nerve, Bilaterally (1 degree OD, 2 degrees OS)

HomeNeuro-Ophthalmology / Evaluation of Diplopia

Title: Aberrant Regeneration of Third Nerve, Bilaterally (1 degree OD, 2 degrees OS)
Author: Kathleen B. Digre, M.D., Professor of Ophthalmology and Neurology, Director of Neuro-Ophthalmology, Moran Eye Center, University of Utah School of Medicine
Date: 03/03/2015
Subjects/Keywords: Aberrant regeneration; 3rd nerve palsy; Lagophthalmos; Bilateral third nerve aberrancy; Synkinesis
Diagnosis: Aberrant regeneration
Brief Description: This is a video showing the eye and lid movements of a patient with aberrant regeneration of the eyelids and third nerve bilaterally.
Format: video
Series: Moran-NOVEL Collection
Identifier: Moran_CORE_15342
Copyright statement: Copyright 2015. Please see terms of use page for more information.