The authors aimed to investigate the rate and onset of development of re-drift after infantile esotropia surgery and identify factors associated with this. This was a retrospective study of 112 patients with a mean postoperative follow-up of 9.5 years. Consecutive exotropia developed in 33%, recurrent esotropia was in 38.4% and 28.6% maintained a deviation within 8PD. About 77% of recurrent esotropia were seen within the first year postoperatively with a mean of 8.9 months. Consecutive exotropia developed over a range of up to 10 years postoperative with a mean of 78.6 months. Fixation preference preoperatively and rate of myopia progression were associated with consecutive exotropia development. An increase in angle of esotropia deviation of the first day postoperative correlated with recurrent esotropia. 

Time and factors affecting the direction of re-drift in essential infantile esotropia.
Na K-H, Cho YA, Kim S-H.
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Fiona Rowe (Prof)

Institute of Population Health, University of Liverpool, UK.

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