Biocompatibility of foldable IOLs in vivo

Purpose: One aspect of biocompatibility of IOLs can be tested using specula r microscopy of the anterior and posterior surface of the lens in vivo. Methods: We examined 45 patients after implantation of a "Memory lens" and 31 patients after the implantation of an "Acrysof" lens 3-6 months after su rgery. Results: Typical deposits (Lens epithelial cells, spindle-shaped macrophage s, giant cells, pigment, Welter membrane) were rarely seen on both types of lenses. There were fewer lens epithelial cells on the posterior capsule an d less secondary cataract after implantation of the "Acrysof" lens. Conclusions: We did not find any indication of reduced biocompatibility in any of the lenses examined. The reduced rate of secondary cataract after im plantation of the "memory lens" may be explained by the fact that this lens type sticks to the posterior capsule better.