Key points Definition: Orbital cavernous hemangioma is a benign, slow-growing, vascular lesion manifesting as painless, progressive proptosis. Synonyms: Ocular cavernous hemangioma, orbital cavernous malformation, orbital cavmal. Classic clue: Well-circumscribed, enhancing intraconal mass in adult patients. Usual imaging appearance Computed tomography…
Key points Definition: Retinal detachment (RD) is a condition in which the inner retinal layer peels away from the middle choroidal layer of the globe permitting fluid to accumulate in what was previously only a “potential space.” It is a…
Key points Definition: An ocular prosthesis (OP) is a device that replaces the native eye after enucleation, evisceration, or exenteration. Also known as: glass eye, artificial eye. Classic clue: The patient usually visits the radiology department for neuro computed tomography…
Key points Definition: Phthisis bulbi (PB) is a generic descriptive term for the ocular globe’s “end-stage” appearance after wasting away, becoming anatomically disfigured, and shrunken as a result of a range of possible prior insults. Also known as: end-stage eye,…
Key points Definition: Ruptured globe (RG) occurs when the integrity of the eye is breeched by blunt or penetrating trauma causing full-thickness corneal or scleral breech. This is an ophthalmologic emergency. Synonym: Shattered globe. Classic clue: A man in his…
Key points Definition: Ocular lens displacement (OLD) refers to the malposition of the lens relative to its normal location as a result of disruption of the zonular fibers, which normally connect the lens to the ciliary body. Synonyms: Lens luxation,…
Key points Definition: Anterior chamber perforation causes loss of aqueous humor resulting in flattening or obliteration of the space between the lens and cornea. Classic clue: The patient presents with potentially penetrating eye trauma, and is found to have a…
Key points Definition: Blowout orbital floor fractures can be repaired using titanium mesh, which gives a characteristic recognizable imaging appearance on computed tomography (CT) and magnetic resonance imaging (MRI). Classic clue: The patient presents for CT or MRI for his…
Key points Definition: Orbital exenteration (OE) is a radical surgical procedure involving removal of the entire orbital contents and periorbital structures. It is usually performed to treat primary orbital or periorbital malignancies that invade the orbit. Classic clue: A middle-aged…
Key points Definition: Blowout orbital floor fractures (BOFFs) result from direct trauma to the orbit transmitting force to the globe. This causes the orbital contents to “blow out” through the path of least resistance, usually the paper-thin lamina papyracea or…