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  • Title: [Keratopathy following vitrectomy with silicone oil injection].
    Author: Lemmen KD, Moter H, Kirchhof B, Heimann K.
    Journal: Fortschr Ophthalmol; 1989; 86(6):570-3. PubMed ID: 2625282.
    Abstract:
    We present a retrospective study on keratopathy following vitrectomy and injection of SF96 silicone oil (viscosity 1000 centipoise, n = 232 eyes) and the purified OP 1000 silicone oil (viscosity 1000 centipoise, n = 129 eyes). In cases with aniridia, with closed inferior basal iridectomy (IBI) or without IBI, keratopathy was found in 74 of the 166 eyes (45%) injected with silicone SF96 and in 14 of the 30 eyes (47%) injected with silicone OP 1000. An intact IBI reduced the incidence of keratopathy to 0% (SF96, 0/45 eyes) or 6% (OP1000, 5/88 eyes) when the anterior chamber was free of silicone. When silicone oil was in contact with the corneal endothelium (due to periretinal reproliferation, hypotony, overfilling or droplet formation), there was corneal decompensation in 66% (SF96, 14/21 eyes) or 55% (OP1000, 6/11 eyes). The keratopathy presents as calcified band keratopathy or diffuse bullous corneal edema as in "endothelial decompensation." These variations in keratopathy are in agreement with the following basic diagnoses: 77% (43/56 eyes) of trauma patients (n = 130) develop calcified band keratopathy, and 47% (24/51 eyes) of patients with idiopathic proliferative vitreoretinopathy (n = 182) present with diffuse bullous corneal edema.
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