OPHTHALMOLOGY

Upper Eyelid Ptosis and Retraction

May 14, 2017 by in OPHTHALMOLOGY Comments Off on Upper Eyelid Ptosis and Retraction

Figure 28.1 Upper eyelid anatomy. Cross-section of upper eyelid demonstrating relationship between levator palpebrae superioris, levator aponeurosis, and Müller muscle.  The tarsus of the upper eyelid is 10 to 12 mm…

read more

Optic Nerve and Peripheral Nerve Sheath Tumors

May 14, 2017 by in OPHTHALMOLOGY Comments Off on Optic Nerve and Peripheral Nerve Sheath Tumors

Figure 18.1 Hematoxylin and eosin (H&E) staining. A meningothelial meningioma (right) with extension in subdural and subarachnoid spaces of the optic nerve (left).  Epidemiology Meningiomas typically arise in adults in their…

read more

Lacrimal Gland Tumors

May 14, 2017 by in OPHTHALMOLOGY Comments Off on Lacrimal Gland Tumors

Figure 17.1 Ultrastructural anatomy of a lacrimal lobule.  The lacrimal gland receives its blood supply from the lacrimal artery, which arises from the ophthalmic artery lateral to the optic nerve and…

read more

Blepharospasm and Other Facial Spastic Disorders

May 14, 2017 by in OPHTHALMOLOGY Comments Off on Blepharospasm and Other Facial Spastic Disorders

Figure 32.1 “Yawning man” or “De Gaper.” Pieter Brueghel the Elder, around 1560. (Courtesy of Musées Royaux des Beaux–Arts de Belgique, Bruxelles.) The first report of blepharospasm in the medical literature was…

read more

Orbital Structural Disorders

May 14, 2017 by in OPHTHALMOLOGY Comments Off on Orbital Structural Disorders

Figure 27.1 A, Coronal CT scan showing a mucocele of the left ethmoid and maxillary sinus. B, Coronal CT scan of the same patient at a more anterior level. Note the…

read more

Orbital Trauma

May 14, 2017 by in OPHTHALMOLOGY Comments Off on Orbital Trauma

Figure 34.1 A, Orbital anatomy showing bones of the orbit. B, Medial wall of the orbit showing ethmoidal foramina. C, Orbit floor anatomy showing location of infraorbital nerve and inferior oblique…

read more

Imaging Modalities

May 14, 2017 by in OPHTHALMOLOGY Comments Off on Imaging Modalities

Figure 5.1 A frontal radiograph in the Caldwell projection (A) and a coned down image of the left orbit (B) demonstrate a small radiopaque metallic foreign body that projects over the…

read more

Benign and Premalignant Tumors of the Eyelid

May 14, 2017 by in OPHTHALMOLOGY Comments Off on Benign and Premalignant Tumors of the Eyelid

Figure 22.1 Squamous papilloma. A, Clinically, the lesion appears as a flesh-colored papule on the left upper eyelid margin of this patient. B, Histologic section demonstrates proliferation of stratified squamous epithelium…

read more

Eyelid and Lacrimal Trauma

May 14, 2017 by in OPHTHALMOLOGY Comments Off on Eyelid and Lacrimal Trauma

Figure 35.1 Eyelid anatomy. Cross-sectional view of the upper eyelid. (With permission from Jonathan J. Dutton.) Epidemiology The United States Eye Injury Registry reports that 61% of eyelid/lacrimal trauma has coexisting globe…

read more

Metastatic and Secondary Orbital Tumors

May 14, 2017 by in OPHTHALMOLOGY Comments Off on Metastatic and Secondary Orbital Tumors

Figure 21.1 Infiltrative breast carcinoma. A, A 72-year-old woman with widespread metastatic breast carcinoma presents with failing vision, bilateral ptosis, grossly restricted eye movements, and hard, woody infiltrative lesions palpable in…

read more
Get Clinical Tree app for offline access