Eyelid Fissure Narrowing after Recession of the Medial Rectus Muscle

Hirohiko Kakizaki, Yasuhiro Takahashi, Akihiro Ichinose, Masayoshi Iwaki
DOI: 10.4236/ss.2011.27082                

Abstract

A 67-year-old male had suffered from eye movement disturbance from Graves’ orbitopathy. His right eye was fixed in an esotropic position. Examination by synoptophore showed that his right eye deviation was 22 degrees medially. The upper eyelid margin reflex distance (MRD) was 3.5 mm OD and 5.6 mm OS, and the lower eyelid MRD was 5.1 mm OU. Six mm medial rectus muscle recession with tenotomy was performed in the patient. The next day after the surgery, his eye position did not change and the right eyelid fissure demonstrated narrowing with upper eyelid lowering and lower eyelid elevation. The right upper eyelid MRD was decreased to 1.9 mm and the right lower eyelid MRD was similarly decreased to 4.3 mm. On the same day, 4 mm resection of the ipsilateral lateral rectus muscle was performed, but the same MRDs were ob-served postoperatively. Patients undergoing medial rectus muscle recession in Graves’ orbitopathy need to be informed of this potential complication.

Keywords

Graves’ Orbitopathy, Lower Eyelid Elevation, Margin Reflex Distance, Medial Rectus Muscle, Upper Eyelid Lowering

Conflicts of Interest

The authors declare no conflicts of interest.

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