Persistent Diplopia in Primary Position after Pars Plana Vitrectomy with Encircling Band in Rhegmatogenous Retinal Detachment.

PURPOSE

To evaluate the incidence of persistent diplopia in primary position after encircling band procedures with pars plana vitrectomy (PPV) and to report the outcomes.

DESIGN

Observational, retrospective study.

PARTICIPANTS

One hundred sixteen patients who underwent successful rhegmatogenous retinal detachment (RRD) at our center from 2009 through 2014.

METHODS

We studied all patients with RRD who underwent successful PPV with an encircling band. Patients reporting diplopia more than 2 months after retinal surgery were identified and evaluated by our strabismus colleagues.

MAIN OUTCOME MEASURES

Outcome measures included near and far deviation in prism diopters, degree of anisometropia, and visual acuity.

RESULTS

Six of 116 patients reported persistent diplopia in primary position (5.2%). The diplopia most often was related to vertical microdeviations from 3 to 5 prism diopters, and it was managed adequately with prisms. The deviation remained unchanged during the follow-up, except in 1 patient.

CONCLUSIONS

Persistent diplopia associated to PPV with an encircling band has a low incidence and a small angle of deviation, and in our cases, it could be corrected successfully with prisms.