Imaging the Postoperative Orbit

Abstract

Facial nerve de fi cits can lead to keratitis sec-ondary to lagophthalmos and decreased lacrimal gland secretions. The weights are available in different sizes and shapes, including thin pro fi le. Eyelid weights are usually implanted subcuta-neously and secured to the tarsus in the upper eyelid, enabling eye closure (Fig. 2.1). Gold eyelid weights are considered MRI compatible. Over 90 % of patients experience improved visual acuity after this procedure. Complications related to eyelid implantation include infection, allergic reaction, migration, and extrusion. Closure of the orbicularis over the implant reduces the risk of extrusion.