Tamer Macky, MD (Cairo, Egypt), Pakinam H Fouad, MD (Cairo, Egypt), Mahmoud M. Soliman, MD (Cairo, Egypt), Nahla Sobhy, MSc (Cairo, Egypt)

PURPOSE:

This study was aimed at assessing changes at the sclerotomy site using the ultrasound biomicroscopy (UBM) in eyes that underwent pars plana vitrectomy for complications of proliferative diabetic retinopathy.

METHODS:

Twenty one eyes of 15 patients with vitreous hemorrhage and /or tractional retinal detachment caused by proliferative diabetic retinopathy underwent 3-port pars plana vitrectomy followed by UBM evaluation of all sclerotomy sites at 3 weeks, 1, 3 and 6 months and at one year after surgery. The changes at the sclerotomy site were recorded.

RESULTS:

All sclerotomy sites appeared to be completely healed by 3 months. At 3 weeks after surgery, most sclerotomies had either moderate to high reflective plaques bridging the site. Wound gape was seen in 30% of vitrectomy probe ports, 24% of light ports, and 19% of infusion ports. Vitreous incarceration was seen at the infusion port in 19% of eyes. Fibrovascular proliferation was in one eye at the vitrectomy probe port in a patient with no rebleeding. One the other hand, three patients who developed rebleeding did not have a fibrovascular growth at the sclerotomy sites.

CONCLUSION:

UBM can help in detecting complications at the sclerotomy sites following pars plana vitrectomy.