Despite the fact that PVR stage C1-C2 was already present preop-eratively in 43 eyes or in 2.9% of the 1,462 detachments treated, it was the cause of primary failure in only 20 eyes (1.4%) and, after reoperation, the cause of final failure in 28 eyes or in 1.9%.
Thus, the presence of PVR did not preclude applying minimal segmental buckling with sponges or balloons without drainage. By omitting drainage, a breakdown of the blood-aqueous barrier was eliminated. By performing cryopexy and buckling with a minimum of trauma to these vulnerable eyes, a progression of PVR could be circumvented.
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