Large bilateral lateral rectus
recession is done when the acuity is good in each eye.
Patients with impending perforation or perforated corneal ulcers, pterygium, keratomalacia, Steven-Johnson syndrome, Bowen's disease, exposed lateral rectus
Here, we reported a rare case that localized in the left lateral rectus
Ten months after the initial surgery, he underwent a full-thickness transposition of the superior and inferior rectus muscles to the lateral rectus
muscle and a 5/0 multifilament nonabsorbable lateral fixation suture (Foster) was placed in the sclera 8 mm posterior to the lateral rectus
insertion incorporating the superior rectus and one fourth of the lateral rectus
As the lateral rectus
and medial rectus only have muscle actions in one plane, it is unlikely that dysfunction of these muscles will give vertical diplopia unless there is also a weakness in one of the vertically acting muscles.
MRI revealed thickening of the lateral rectus
muscle together with contrast enhancement (Figure 2).
Table 1: Extraocular examination of left eye Extraocular muscle Function Movement of left eye Medial rectus Adduction Absent Superior rectus Elevator in abduction Absent Inferior rectus Depressor in abduction Absent Inferior oblique Elevator in adduction Absent Superior oblique Depressor in adduction Present but not full Lateral rectus
The sixth cranial nerve (abducens nerve) innervates the lateral rectus
muscle in the ipsilateral eye.
2 cm in the right orbit along the right lateral rectus
and superior rectus muscles.
eye abducted in primary position due to unopposed action of the lateral rectus
The abducent nerve innervates the lateral rectus
muscle which abducts the eye (move away from the midline).
The patient had bilateral lateral rectus
paresis and bilateral diplopia in the lateral gaze.