Duane retraction syndrome (DRS): classification
Written and reviewed by Dr Ibrahim Imam, Consultant Neurologist. Last reviewed .
Duane retraction syndrome (DRS): classification. Absent or limited abduction with normal adduction. Fully referenced neurology checklist.
DRS Type I: features
- Absent or limited abduction with normal adduction
- Absent or hypoplastic abducens nerve
- Enlargement of the oculomotor nerve
- Hypoplasia of the superior oblique muscle (SOM)
- Lateral rectus innervated by an aberrant oculomotor nerve branch
DRS Type II: features
Locked: subscribe to see this section.
DRS Type III: features
Locked: subscribe to see this section.
