Management of Intraorbital Foreign Bodies - American …
网页2016年1月1日 · Intraocular foreign bodies (IOFBs) are foreign bodies that have penetrated the eye and are lodged within the globe. In contrast, OrbFBs are lodged within the walls of the orbit, which creates a risk of damage to surrounding structures, such as the extraocular muscles and cranial nerves II through VI.
Orbital infection | Radiology Reference Article - Radiopaedia.org
网页2024年8月13日 · Orbital infection is a relatively commonly encountered pathology. It comprises of three main clinical entities with the most important distinction between that of orbital and periorbital cellulitis: periorbital cellulitis (preseptal cellulitis) is limited to the soft tissues anterior to the orbital septum 1. often managed with oral antibiotics.
Optic nerve (CN II): Anatomy, pathway and histology | Kenhub
网页2023年8月16日 · The 25 mm of optic nerve travelling from the posterior part of the eyeball (a few millimetres medial to its posterior pole) to the intraorbital opening of the optic canal is known as the intraorbital part.
Orbital Foreign Body - EyeWiki
网页An orbital foreign body refers to the presence of any foreign object partially or completely within the orbit, with or without penetration or perforation of the globe.
Imaging in Orbit and Oculoplasty - EyeWiki
网页Orbital structure imaging requires slice thickness of 3 or 4mm and inter slice thickness of 0.5 to 1mm. There are three type of cuts for imaging: Axial – recognized by presence of both orbits in scan with brain tissue behind. Coronal – recognized by presence of both orbits in the scan with brain tissue above.
The Radiology Assistant : CT and MRI of the Eye
网页2008年9月19日 · In adults the most common intraorbital calcifications occur at the tendinous insertion of the ocular muscles. Other common calcifications are at the optic nerve head within the eye, also called 'optic disc drusen'.
Anatomy of the Orbit - PMC - National Center for Biotechnology …
网页2020年9月17日 · The optic nerve can be subdivided into five segments: intraocular, intraorbital, intracanalicular, preforaminal, and cisternal; the two last segments represent the intracranial segments. The optic nerve emerges from the optic chiasm and courses anteroinferolaterally, usually at a 30- to 45-degree angle, within the chiasmatic cistern.
Orbital Compartment Syndrome - American Academy of Ophthalmology
网页2023年3月1日 · Orbital compartment syndrome (OCS) is an emergent condition that occurs when intraorbital pressure exceeds ophthalmic artery pressure, causing compression and ischemic compromise to the retina and optic nerve. Patients of any age or demographic can be affected.
Demystifying Orbital Emergencies: A Pictorial Review
网页2017年4月21日 · In an emergent setting, CT is the preferred modality when evaluating for intraorbital foreign bodies, fractures, or calcifications within a mass lesion. MR imaging is typically the modality of choice for orbital pathologic conditions, owing to its superior ability to delineate the orbital soft tissues and visual pathways.
Clinical Presentation and Management Strategies in Intraorbital …
网页2021年3月30日 · Intra-Orbital Foreign Bodies (IOrbFBs), though commonly encountered in routine ophthalmology practice, may have unusual presentations. They may occasionally accompany trivial trauma, such as in children while playing.