Items tagged “globe”

Calcification of the globe has many causes, varying from the benign to malignant. When calcification is seen of the posterior half of the globe, it could relate to any of the layers (scleral, choroidal or retinal), as it is not possible to separate them out on CT. Retinal drusen: 1% population...

Ectopia lentis refers to subluxation or dislocation of the lens of the eye secondary to dysfunction or disruption of zonular fibers. It is most commonly due to trauma. The commonest atraumatic etiologies are Marfan syndrome and homocystinuria. Pathology Etiology trauma systemic and syndromic...

Malignant uveal melanomas, also referred to as choroidal melanomas, are the most common primary tumor of the adult eye 3.  Epidemiology Malignant melanoma of the uvea is the most common primary intraocular malignancy and is predominantly seen in Caucasians 5. The incidence of these tumors incr...

Senile calcific scleral plaques, also known as senile scleral plaques, are benign degenerations of the ocular sclerae, common in elderly individuals. They are a common incidental finding on CT. Epidemiology The prevalence of senile scleral plaques increases with age, from ~2.5% at age 60, to 2...

The sclera (plural: scleras or sclerae) is the fibrous, opaque white, coat of the eye. It functions to protect the intraocular contents.  Summary location: posterior fifth-sixths of the eyeball blood supply: ciliary arteries innervation: ciliary nerves relations: anteriorly continuous with...

The choroid is part of the uveal layer of the eye along with the ciliary body and iris 1.   Summary location: posterior aspect of the globe function: vascularization of the outer retina arterial supply: posterior ciliary arteries innervation: short ciliary nerves, long ciliary nerves rela...