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Biomedical subjects

Marc Shields

Publications and source records attributed to Marc Shields.

4 recordsLinked to original sources
PubMed2005

Pathology and imaging of the lacrimal drainage system.

The lacrimal drainage apparatus drains tears from the eye. The system is susceptible to a multitude of pathologic findings, including obstruction, infection, inflammation, and neoplasms. The diagnosis of several of these processes is aided by the use of radiologic studies. In conjunction with dacryocystography, cross-sectional modalities, such as CT and MR imaging have improved the ability of diagnostic imaging to characterize the obstructive nature and soft tissue or osseous changes of various disease processes.

Diagnosis, Differential↗
PubMed2003

Blepharoptosis correction.

Blepharoptosis is a common complaint of eyelid malposition in which the upper eyelid is lower than normal. There are multiple types of blepharoptosis based on cause, and important studies have recently been published on one type, myogenic blepharoptosis. There have classically been three methods for correcting blepharoptosis. For the most severe cases, frontalis slings are often performed. New materials, such as polyester mesh, have shown promise as alternatives in forming frontalis slings. A recent paper has suggested a new algorithm for another method of blepharoptosis correction, the conjunctiva-Müller muscle resection. The effectiveness of the third type of procedure for blepharoptosis correction, the external levator advancement, has been reinforced in a study examining the procedure in cases of congenital blepharoptosis.

Blepharoplasty↗