[Causes of insufficient effectiveness of collagen plasty (an experimental study)]

Morphological and biomechanical features of the sclera after collagen plasty were studied in 90 eyes of 45 chinchilla rabbits. A reduction of the viscous elastic properties of the sclera 1 month after surgery was revealed, not described previously. The data on the changed mechanical characteristics of the sclera following collagen plasty are confirmed by the results of optic and electron microscopy; these data permit us to propose that the sclera in the immediate postoperative period (less than 1 month after the operation) represents a somewhat chaotic structure at the stage of active restructuring. Rational postoperative management of patients after collagen plasty is recommended.