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Ocular Motility I PDF

1. The document discusses the evaluation and approach to patients presenting with double vision or ocular motility issues. It emphasizes differentiating between monocular and binocular diplopia and determining the pattern of misalignment. 2. Key aspects of the history and exam are described, including determining if the double vision is present at distance and near, if it is horizontal or vertical, and if it is comitant. 3. Different potential causes of monocular and binocular diplopia are outlined, including abnormalities that could cause monocular diplopia like astigmatism or cataracts.

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Fani Nanda Sihanto
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125 views65 pages

Ocular Motility I PDF

1. The document discusses the evaluation and approach to patients presenting with double vision or ocular motility issues. It emphasizes differentiating between monocular and binocular diplopia and determining the pattern of misalignment. 2. Key aspects of the history and exam are described, including determining if the double vision is present at distance and near, if it is horizontal or vertical, and if it is comitant. 3. Different potential causes of monocular and binocular diplopia are outlined, including abnormalities that could cause monocular diplopia like astigmatism or cataracts.

Uploaded by

Fani Nanda Sihanto
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
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Download as PDF, TXT or read online on Scribd
You are on page 1/ 65

Ocular Motility Part 1:

Evaluation & Cranial Nerve Palsies

Karl C. Golnik, MD

Professor & Chairman


Department of Ophthalmology
University of Cincinnati &
The Cincinnati Eye Institute
Objectives
1. Describe pertinent portions of the
history and exam.

2. Describe approach to patient with


ocular motor cranial nerve palsy.
The most important question for the
patient with double vision is?

1. Is there pain?
2. When did it start?
3. Does it go away when
you cover each eye?
4. Is it present at distance
and near?
Diplopia
3 Essential Questions

1. Monocular or binocular?

2. Horizontal or not?

3. Comitant or not?
Diplopia

Monocular

uncorrected astigmatism
corneal scar
cataract
subluxed lens / implant
epiretinal membrane
palinopsia
Diplopia
Monocular - Assessment

pinholepinhole
refraction
corneal topography
slit lamp exam
funduscopy
Monocular Diplopia

Dr. Golnik
Diplopia
3 Essential Questions

1. Monocular or binocular?

2. Horizontal or not?

3. Comitant or not?
Diplopia
3 Essential Questions

1. Monocular or binocular?

2. Horizontal or not?

3. Comitant or not?
Diplopia
Fellow Travelers

• levator
• pupils
• orbital signs
• head position
Ocular Motility

Ductions - excursion of one eye

Versions - excursions of both eyes

Comitant - same degree of misalignment in


all gazes.
Diplopia

esotropia (ET) - eyes turn ET


in
exotropia (XT) - eyes turn
out XT

hypertropia (HT) -
vertically RHT
misaligned
Diplopia

Pattern of ocular
alignment is essential
to the diagnosis.
Assessment of Misalignment

Objective Methods

• cover - uncover (tropia) + prism

• cross - cover (phoria) + prism

• Hirschberg (I don’t want to hear


it!)
Esotropia
Diplopia
Binocular

fusional
muscle
myo-neural jct
nerve
inter/supra nuclear
Diplopia
Binocular - Fusional

decompensated phoria (comitant)

divergence insufficiency

convergence insufficiency
Diplopia
33-yo-wm c/o diplopia

binocular, horizontal, same in all directions


worse when tired

exam: full d/v, 14 Prism diopter XT in primary,


comitant

DX: broken down congenital phoria


Diplopia
• 69-yo-woman c/o diplopia
• binocular, horizontal, only in
the distance
• exam: full d/v, 6 Prism diopter
ET distance, ortho near,
comitant
Diagnosis?
1. Convergence Insufficiency
2. Divergence Insufficiency
3. 6th nerve palsy
4. Myasthenia Gravis
Oculomotor Nerve (IIIrd)

• parasympathetics - cil body/iris


sphincter
• levator palpebre
• inf, sup, med recti, inf oblique
This patient has

1. Myasthenia Gravis

2. Graves Disease

3. L 3rd nerve palsy

4. L 4th n palsy
A L 4th nucleus lesion causes

1. Left hypertropia
2. Right hypertropia
3. Incyclotorsion
4. None of the
above
Tiny RHT
Bigger RHT
straight
RHT
straight
ET in R gaze
The patient on the preceding slide most
likely has:

1. Microvascular (DM, HTN) 6th nerve palsy

2. Compressive 6th nerve palsy

3. Myasthenia Gravis

4. Giant Cell Arteritis


Check other adjacent CNs
Also a L RAPD is present.
Orbital apex syndrome: CN II & CN III, IV, V, VI
Ocular Motility Part 1: Summary

1. Differentiate monocular from binocular


diplopia immediately!
2. Determine the pattern of misalignment.
3. Check fellow travelers (lids, pupils).
4. Not all cranial nerve palsies are complete.
Thank-you for your attention.

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