Items tagged “eye”
103 results found
Article
Exudative retinitis
Exudative retinitis, also known as retinal telangiectasis or Coats disease, is a rare congenital disease affecting the eyes and is a cause of leukocoria.
Epidemiology
It occurs predominantly in young males, with the onset of symptoms generally appearing in the first decade of life with a peak ...
Case
Drusen
Published
05 Apr 2010
68% complete
CT
Article
Optic disc drusen
Optic disc drusen (ODD), or hyaline bodies, are a relatively common entity usually found incidentally on CT or on follow-up of abnormal fundoscopy.
Epidemiology
Optic disc drusen are identified radiographically in up to 0.3-3.7% of the population and are frequently bilateral 1,4,5. They are ty...
Article
Choroidal osteoma
Choroidal osteomas are rare benign calcific masses of the globe.
Epidemiology
Choroidal osteomas are typically found in young Caucasian women 1. A number of familial cases have been reported 3.
Clinical presentation
These lesions are usually unilateral (75%), and result in painless and gra...
Article
Retinoblastoma (staging)
Retinoblastoma staging can be via a number of systems with various end-points and multiple systems are often used concurrently.
Staging
Reese Ellsworth classification
The Reese Ellsworth classification is assessed with fundoscopy and aims at predicting the chance of preserving the eye with ex...
Case
Retinoblastoma
Published
20 Apr 2010
77% complete
MRI
Case
Retinoblastoma - fundoscopy (photo)
Published
20 Apr 2010
36% complete
MRI
Case
Retinoblastoma (gross pathology)
Published
20 Apr 2010
38% complete
Photo
Case
Retinoblastoma - leukocoria (photo)
Published
20 Apr 2010
47% complete
Photo
Case
Drusen (histology)
Published
22 Apr 2010
41% complete
Photo
Article
Intraconal orbital compartment
The intraconal orbital compartment or intraconal space is the conical space within the orbit and musculofascial cone, the base of which is anterior and is formed by the posterior half of the globe. The sides are formed by the extraocular muscles and their surrounding fascia which pass posteriorl...
Case
Vitreous hemorrhage - traumatic
Published
12 May 2010
59% complete
CT
Case
Retinoblastoma
Published
21 May 2010
83% complete
CT
Case
Auto-enucleation
Published
17 Jul 2010
66% complete
CT
Article
Cogan syndrome
Cogan syndrome is a rare vasculitis of young adults that is primarily characterized by 1,4,6:
inflammatory eye disease (classically interstitial keratitis) 6
audiovestibular dysfunction (similar to Meniere disease) 6
Epidemiology
Cogan syndrome is rare and can occur in people of any age and ...
Article
Retinopathy of prematurity
Retinopathy of prematurity (ROP) (formerly referred to as retrolental fibroplasia) is an ocular condition seen in the infant population. It often occurs bilaterally, although usually with significant asymmetry 1.
Epidemiology
There is often a history of premature delivery, low birth weight, a...
Article
Extraocular muscles
The extraocular muscles (EOMs) are the six skeletal muscles that insert onto the eye and hence control eye movements.
Terminology
The extraocular muscles maybe subdivided into the recti muscles and the oblique muscles.
Action
A summary of the principal actions of each muscle are given below....
Article
Orbital spaces
The orbital spaces are important when considering different pathologies:
globe
subdivided into anterior and posterior segments by the lens
optic nerve-sheath complex
optic nerve
ophthalmic artery
central retinal artery and vein
surrounding sheath of meninges as an extension of the cerebr...
Article
Ocular metastasis
Ocular metastases, also termed uveal metastases, account for over 80% of all ocular pathology, and need to be distinguished from extraocular metastasis, which are quite different groups of tumors.
This article will discuss metastatic lesions affecting the orbits. For other intracranial metastat...
Article
Terson syndrome
Terson syndrome refers to intraocular hemorrhage in patients with intracranial hemorrhage.
Terminology
The traditional definition of Terson syndrome was vitreous hemorrhage associated with subarachnoid hemorrhage. However, there is also a broader definition which captures intraocular hemorrhag...