Strabismus and scleral buckling
Reviewed by Fiona Rowe

The authors examine the incidence of strabismus following scleral buckle for retinal detachment surgery and the factors that influence the strabismus, its incidence, preventative measures and treatment options. This was a retrospective review of 344 patients (360 eyes) with a mean age of 38.4±18.1 years; 267 male and 77 female. Sixteen had bilateral retinal detachment surgery. In all cases a 2.5mm wide encircling band (Mira 240) was placed over the segmental buckle to augment the buckling effect. Strabismus was noted in 14% at six-week follow-up. Twelve patients complained of diplopia; eight constant and four intermittent. Persistent strabismus remained for 16 patients. The average angle was 25.8±13.4PD (exo and eso deviations) and 6.9±3.9PD (vertical deviations). Prisms were needed by 11 patients and two patients underwent strabismus surgery. The incidence of persistent strabismus was 4.65%. The authors found that width of scleral buckle material and number of extraocular muscles involved with the buckle do not influence the incidence of postoperative strabismus. There was a significant increase in incidence of strabismus with reoperations. Most cases of diplopia could be treated with prisms.

Strabismus following scleral buckling surgery.
Ganekal S, Nagarajappa A.
STRABISMUS
2016;24(1):16-20.