Training Collections
Musculoskeletal Imaging
Emergency Imaging
PET Imaging
Pediatric Imaging
Training Collections
Musculoskeletal Imaging
Emergency Imaging
PET Imaging
Pediatric Imaging
Lesson
Orbital Imaging Protocols
4 topics, 10 min.
Lesson
Orbit Anatomy
10 topics, 19 min.
Lesson
Case Review - Ocular Pathology
17 topics, 1 hr. 11 min.
Anterior Globe Rupture with Laterally Dislocated Cataract
4 m.Foreign Body in Globe
4 m.Wood Foreign Body and Ocular Hypotony
2 m.Hemmorhage in Both Chambers, Open Globe
3 m.Staphyloma
4 m.Persistent Hyperplastic Primary Vitreous (PHPV)
5 m.Retinal Detachment
3 m.Retinoblastoma on CT
4 m.Retinoblastoma on MRI
9 m.Bilateral Retinoblastoma
7 m.Ocular Pathology - Review
11 m.Endophthalmitis
3 m.PHPV Review, Coloboma, and Staphyloma
5 m.Phthisis Bulbi, Macrophthalmia, and Microphthalmia
4 m.Ocular Calcification
4 m.Retinoblastoma - Review
5 m.Choroidal Melanoma
3 m.Lesson
Case Review - Intraconal Pathology
15 topics, 1 hr. 8 min.
Intraconal, Conal and Extraconal Anatomy
1 m.Intraconal Hemangioma
5 m.Venous Vascular Malformation
3 m.Optic Nerve Glioma, NF1
4 m.Optic pathway glioma (pilocytic astrocytoma)
4 m.Optic Neuritis, Multiple Sclerosis
6 m.Optic Neuritis, Multiple Sclerosis (2)
7 m.Neuromyelitis Optica Spectrum Disorder
5 m.Neuromyelitis Optica With Spinal Cord Involvement
3 m.Optic Nerve Sheath Meningioma
5 m.Bilateral Optic Neuritis, Leukemia
6 m.Intraconal Pathology - Review
11 m.Optic Neuritis - Review
5 m.Optic Nerve Glioma - Review
4 m.Optic Nerve Sheath Meningioma - Review
6 m.Lesson
Case Review - Conal Lesions
5 topics, 16 min.
Lesson
Case Review - Extraconal Injuries and Abnormalities
18 topics, 55 min.
Extraconal Pathology - Introduction
1 m.Periorbital Cellulitis & Abscess
4 m.Type 3 Orbital Infection
3 m.Solitary Fibrous Tumor
4 m.Langerhans Cell Histiocytosis
2 m.Juvenile Ossifying Fibroma
2 m.Perineural Spread of Squamous Cell Carcinoma
5 m.Proptosis from Extraosseous Extension of Prostate Metastasis
3 m.Orbital Floor Fracture
5 m.Orbital Floor Fracture with Muscle/Fat Herniation
4 m.Orbital Floor Fracture: Status Post Repair
2 m.Bilateral Orbital Fracture Repair
2 m.Periorbital Cellulitis - Review
5 m.Orbital Pseudotumor - Review
3 m.Orbital Wall Abnormalities - Review
3 m.Orbital Fracture - Review
7 m.Giant Cell Reparative Granuloma
3 m.Granulomatous Sinusitis with IgG4-related Ophthalmic Disease
4 m.Lesson
Case Review - Orbital Appendage Pathology
6 topics, 19 min.
0:00
Let's discuss the membranes of the globe in
0:03
a little bit more detail.
0:05
As I mentioned,
0:06
the sclera is the most outer portion of the membranes and
0:11
becomes continuous with the cornea far anteriorly.
0:17
The next membrane to talk about is the choroid.
0:21
As I mentioned,
0:22
the choroid goes far anterior and communicates with the
0:26
ciliary body at the level of the lens of the eye.
0:34
The third membrane is the retina.
0:36
The retina is seen in yellow here
0:40
and as I mentioned previously,
0:42
it ends at an area called the ora serrata at that junction
0:48
with the 10:00 and 02:00 on the globe and does
0:52
not go as far anteriorly as the choroid.
0:55
This helps you in identifying retinal detachments which
0:59
stop at 10:00 and 02:00 from choroidal detachments
1:03
which will go all the way up to the lens.
1:06
These detachments occur between the different layers
1:10
of the membranes, as you can see here.
1:14
This is the vitreous
1:17
compartment and you can have a collection which occurs
1:23
between the edge of the vitreous and the retina
1:27
and this is the post-hyaloid or subhyaloid space.
1:33
You may also have a collection between the sensory and
1:39
retinal pigment epithelium of the retina
1:44
which would be in the subretinal space.
1:49
There is also a space between the choroid
1:54
and the sclera which is termed the suprachoroidal space.
2:01
And finally, although it's unusual to see,
2:04
you can have a collection that is between the choroid
2:09
and the retina in the subchoroidal space.
Membranes of the Orbit
HIDEInteractive Transcript
0:00
Let's discuss the membranes of the globe in
0:03
a little bit more detail.
0:05
As I mentioned,
0:06
the sclera is the most outer portion of the membranes and
0:11
becomes continuous with the cornea far anteriorly.
0:17
The next membrane to talk about is the choroid.
0:21
As I mentioned,
0:22
the choroid goes far anterior and communicates with the
0:26
ciliary body at the level of the lens of the eye.
0:34
The third membrane is the retina.
0:36
The retina is seen in yellow here
0:40
and as I mentioned previously,
0:42
it ends at an area called the ora serrata at that junction
0:48
with the 10:00 and 02:00 on the globe and does
0:52
not go as far anteriorly as the choroid.
0:55
This helps you in identifying retinal detachments which
0:59
stop at 10:00 and 02:00 from choroidal detachments
1:03
which will go all the way up to the lens.
1:06
These detachments occur between the different layers
1:10
of the membranes, as you can see here.
1:14
This is the vitreous
1:17
compartment and you can have a collection which occurs
1:23
between the edge of the vitreous and the retina
1:27
and this is the post-hyaloid or subhyaloid space.
1:33
You may also have a collection between the sensory and
1:39
retinal pigment epithelium of the retina
1:44
which would be in the subretinal space.
1:49
There is also a space between the choroid
1:54
and the sclera which is termed the suprachoroidal space.
2:01
And finally, although it's unusual to see,
2:04
you can have a collection that is between the choroid
2:09
and the retina in the subchoroidal space.
Report
Description
Faculty
David M Yousem, MD, MBA
Professor of Radiology, Vice Chairman and Associate Dean
Johns Hopkins University
Tags
Trauma
Orbit
Neuroradiology
Neuro
MRI
Head and Neck
CT
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