Criteria of patients satisfaction were postulated as (i) satisfactory surgical outcome within 10 degrees of orthotropia
and (ii) unsatisfactory surgical outcome if ET or XT [greater than or equal to] 10 degrees.
The postoperative result showed that 11 patients (68.8%) had orthotropia [Figure 1], three patients (18.7%) had undercorrection of 10 PD [Figure 2] and two patients (12.5%) had undercorrection of 15-20 PD [Figure 3].
 The postoperative result in our study showed that 68.8% patients had orthotropia, 18.7% patients had undercorrection of 10 PD and 12.5% patients had undercorrection of 15-20 PD.
He also noted that, among patients with latent nystagmus, 99% had congenital strabismus, with orthotropia
being extremely rare.
Treatment goals include good vision in each eye (no amblyopia) and straight eyes (orthotropia
All patients showed small-angle hypertropia, that is, [less than or equal to] [12.sup.[DELTA]] in primary position of gaze with the head straight, and were near orthotropia
with the head tilted toward the sound side.
restored orthotropia and binocular single vision in primary gaze position i.e., there was no diplopia in primary gaze.
Of the 36 patients having received injections, at 1 week after injection 31(86.12%) patients had no deviation on Hirschberg corneal reflex test i.e., restored orthotropia and binocular single vision in primary gaze position i.e., there was no diplopia in primary gaze.
A criterion for successful surgery was orthotropia [+ or -] 10PD and good stereo acuity assessed by Titmus stereo test and stereo test circle.
In line with established criteria, [5-9] we considered a criterion of orthotropia [+ or -] OPD and good stereo acuity for surgical success.
Refractive accommodative esotropia (RAE) is an esotropia that is restored to orthotropia
at all fixation distances and all gaze positions by optical correction of the underlying hypermetropic refractive error .
This is relevant for only DRS Type 1 because DRS Type 2 is always Exotropia in primary position and DRS Type 3 is always Orthotropia
in primary position.