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


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.


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.


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.


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