Ophthalmology

2014-2015 Basic and Clinical Science Course (BCSC): Section by American Academy of Ophthalmology, John Bryan Holds MD

By American Academy of Ophthalmology, John Bryan Holds MD

Information the anatomy of the orbit and adnexa, and emphasizes a realistic method of the overview and administration of orbital and eyelid problems, together with malpositions and involutional alterations. Updates present info on congenital, inflammatory, infectious, neoplastic and irritating stipulations of the orbit and accent constructions. Covers key elements of orbital, eyelid and facial surgery.

Upon of completion of part 7, readers might be capable to:

Describe the traditional anatomy and serve as of orbital and periocular tissues
Choose acceptable exam ideas and protocols for diagnosing problems of the orbit, eyelids, and lacrimal system
Describe practical and beauty symptoms within the surgical administration of eyelid and periorbital stipulations

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2014-2015 Basic and Clinical Science Course (BCSC): Section 7: Orbit Eyelids and Lacrimal System

Info the anatomy of the orbit and adnexa, and emphasizes a pragmatic method of the review and administration of orbital and eyelid problems, together with malpositions and involutional adjustments. Updates present details on congenital, inflammatory, infectious, neoplastic and aggravating stipulations of the orbit and accent buildings.

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Additional resources for 2014-2015 Basic and Clinical Science Course (BCSC): Section 7: Orbit Eyelids and Lacrimal System

Example text

It allows the direct display of anatomical information in multiple planes (sagittal, axial, coronal, and any oblique plane). e al :h :\- ). S in the evaluation of demyelination and in vascular and hemorrhagic lesions. As with CT, contrast agents are available to imp11ove MRI detail. Compared with CT, MRI also provides better tissue contrast of structures in the orbital apex, intracanalicular portion of the optic nerve, structures in periorbital spaces, and orbitocranial tumors, as there is no artifact from the skull base bones.

Fornix temporally. Frequently, a portion of the palpebral lobe is visible on slit-lamp examination with the upper eyelid everted. rformed on the palpebral lobe or temporal conjunctiva! fornix because it can interfere with the lacrimal ductules draining the orbital lobe. With age, the orbital lobe of the lacrimal gland may prolapse inferiorly out of the fossa and present as a mass in the lateral upper eyelid. Periorbital Structures Nose and Paranasal Sinuses The bones forming the medial, inferior, and superior orbital walls are close to the nasal cavity and are pneumatized by the paranasal sinuses, which arise from and drain into the nasal cavity.

Bilateral eyelid ecchymoses may occur in children with metastatic neuroblastoma. Henderson JW, Campbell RT, Farrow GM, et al. Orbital Tumors. 3rd ed. New York: Raven; 1994. Rootman J, ed. Diseases of the Orbit: A Multidisciplinary Approach. 2nd ed. Philadelphia: Lippincott Williams & Wilkins; 2003. Palpation Palpation around the globe may disclose the presence of a mass in the anterior orbit, especially if the lacrimal gland is enlarged. Increased resistance to retrodisplacement of the globe is a nonspecific abnormality that may result either from a retrobulbar tumor or from diffuse inflammation such as TED.

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