Abstract
To describe the preoperative and postoperative motility disturbances encountered in the Tube Versus Trabeculectomy (TVT) Study during the first year of follow-up.
Multicenter randomized clinical trial.
settings:
Seventeen clinical centers.
population:
Patients 18 to 85 years old who had previous trabeculectomy and/or cataract surgery and uncontrolled glaucoma with intraocular pressure ≥18 mm Hg and ≤40 mm Hg on maximum tolerated medical therapy.
interventions:
350-mm
2 Baerveldt glaucoma implant or trabeculectomy with mitomycin C (MMC).
main outcome measures:
Preoperative and postoperative evaluation of ocular motility and diplopia.
Motility disturbances were detected in 55 patients (28%) at baseline. New-onset persistent diplopia was reported in 5 patients (5%) in the tube group and no patients in the trabeculectomy group at 1 year (
P = .06). A new postoperative motility disturbance developed or worsened in 7 patients (9.9%) in the tube group and no patients in the trabeculectomy group during the first year of follow-up (
P = .005). Postoperative motility disturbances were also associated with increasing age (
P < .001) and right eye surgery (
P = .044).
Preoperative motility disturbances were common among patients in the TVT Study. New postoperative motility disturbances were more frequent following tube shunt surgery than trabeculectomy with MMC after 1 year of follow-up.
