Extending the Limbus-to-Cannula Distance to 6.0 mm During Pars Plana Vitrectomy in Highly Myopic Eyes

To evaluate the utility of extending the limbus-to-cannula distance to 6.0 mm during pars plana vitrectomy for highly myopic eyes.Four eyes with axial lengths exceeding 31.0 mm, that underwent 25-gauge pars plana vitrectomy were retrospectively evaluated. Assuming that cannulas were inserted 3.5 mm and 6.0 mm from the corneal limbus, the distance from the cannula to the fovea (CF distance) was preoperatively evaluated using anterior segmental...