Abstract

Design: Prospective observational case-control study.
Purpose: To evaluate pre and post-operative stereoacuity(SA) changes and its correlation with motor outcomes in intermittent divergent squint(IDS) patients.
Method: 34 IDS patients planned for surgery and 34 age-matched controls underwent preoperative evaluation, including complete ophthalmic and orthoptic examination and then followed up postoperatively at 1 month & 3 months.
Results: Near & distance SA was significantly lower in IDS patients as compared to controls (p<0.01) which improvement significantly post-surgery but remained lower than controls (p<0.01). Significant improvement was noted in motor control that was comparable to control group at 1 month post-surgery and was maintained over 3 months (p<0.01). Cases who had preoperative modified New Castle Score(NCS)>5 had poor gain in SA as compared to those who had NCS =/<5 (p=0.04).
Conclusion: Preoperative modified NCS>5 implies poor prognosis for SA gain after surgery.

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