Complications
Reported recurrence rates following excision with conjunctival autografting range between 5% and 15%.[30]
Recurrence rates after simple excision are generally higher (>33%).[19] Recurrences typically occur within the first 6 months after surgery. Recurrences may be more aggressive than the original lesion.
Rarely may develop following surgical excision with conjunctival autografting. These are benign vascular tumors of the mucous membranes that develop rapidly over a period of weeks to maximum size of 0.5 to 2 cm, and are soft, elevated, and slightly pedunculated. Avoiding exposure of the Tenon capsule is the most effective way of preventing Tenon capsule granuloma formation.
An unusual complication that may occur with extensive lesions extending to the visual axis. May require further surgical intervention in the form of excimer laser phototherapeutic keratectomy (PTK) or lamellar keratoplasty.
May occasionally occur following surgical excision with conjunctival autografting. Non-sight-threatening. May require simple surgical excision.
Adjunctive agents such as postoperative eye-drop regimens of thiotepa and mitomycin eye drops, perioperative mitomycin and daunorubicin application, fluorouracil, and beta-radiation therapy using strontium-90 plaques may reduce rates of recurrence following simple excision. Their use can be associated with significant sight-threatening complications such as corneal endothelial cell loss, scleral ulceration, melting, and even perforation.[35][39][40][41][42]
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