BANGOR, Maine (WABI) - Diabetes can be complicated by abnormal retinal blood vessel growth (neovascularization) that turns into scar tissue which subsequently contracts and pulls the retina (the photViensitive tissue lining of back of the eye) off the eye wall leading to blindness.
The surgical treatment of this blinding condition
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Vitrectomy is indicated when progression of a tractional retinal detachment threatens or involves the macula. Whenever possible, attempts should be made to add or complete panretinal photocoagulation prior to surgery. The goal of vitrectomy surgery is to relieve vitreoretinal traction in order to facilitate retinal reattachment by elevating or peeling cortic vitreous/posterior hyaloid off the retinal surface. Point adhesions of cortical vitreous to surface retinal neovascularization can be addressed with a combination of scissors, picks, and forceps, using either unimanual or bimanual techniques. Various approaches to managing fibrovascular tissue removal have been described; these include segmentation, delamination, and en bloc and modified en bloc excision.
Following removal of all tractional membranes, diathermy is applied to all fibrovascular tuf and supplemental laser is applied. At the completion of the surgery, it is essential that the retinal periphery be carefully examined for retinal breaks.