Author :
Ishan Yadav, V.P. Singh, Prashant Bhushan, Rajendra P. Maurya, M.K. Singh
Volume :
1
Issue :
1
Abstract :
Purpose: To compare surgical outcomes and astigmatism induced by Hang-back and conventional recession surgery in horizontal strabismus.
Methods: In a randomized, double blind, prospective trial, 40 patients of horizontal strabismus, (18 exotropia and 22 esotropia) were randomized into 2 groups according to the type of recession procedure performed. All ocular examinations were done pre and post-operatively including manual and automated keratometry, assessment of angle of deviation was carried out by a certified orthoptist. All patients were followed for a mean duration of 6 months.
Results: Among esotropia success rate (defined as post-operative deviation of < 10 PD 6 months post operatively) was 80 % in patients with Hang-back recession and 84 % in patients with conventional recession (p=1). For exotropia success rate was 60 % in patients with hang-back recession and 75 % among patients of conventional recession (p>0.6). 90 % of eyes operated with conventional recession technique showed significant changes in average keratometry readings (defined as change of > 0.50 D), while for eyes operated by Hang-back technique only 37 % showed same changes (p