Slanted MR surgery for convergence excess ET
Reviewed by Fiona Rowe

The authors aimed to evaluate the surgical outcomes of bilateral slanted recessions of the medial rectus (MR) muscles in patients with convergence excess esotropia (ET). This retrospective study included 16 patients with a mean age at surgery of 5.6 ±3.05 years. A minimum follow-up was four months. An angle of deviation less than 10PD was achieved in 14 children (88%) for distance and in nine (56%) for near fixation. Mean preoperative near-distance disparity of 20.3 ±6.5PD reduced to 4.37 ±5.6PD postoperatively. In two patients a distance disparity of 16PD persisted requiring treatment with bifocals. Bilateral slanted surgery involved recessing the lower muscle margins by 1-2mm more than the upper margins. 

Slanted medial rectus recession is effective in the treatment of convergence excess esotropia.
Bayramler H, Unlu C, Dag Y.
JOURNAL OF PEDIATRIC OPHTHALMOLOGY AND STRABISMUS
2014;51(6):337-40.