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Impressum
Opacification of hydrogel foldable lenses (Hydroview®?)
Küchle M., Groh M., 2v. Below H., Schlötzer-Schrehardt U., Rummelt C., Viestenz A.
Department of Ophthalmology, University Erlangen-Nuernberg, Erlangen; 2Eye Clinic, Grimma, Germany
Purpose: To evaluate the course of postoperative lens opacification
in a foldable hydrophilic lens.
Methods: 12 patients (9 female; 3 male; mean age 77.5 ±
3 years) were referred from an ophthalmological practice because of opacification
of the IOL and markedly decreased visual acuity. Time between implantation
and explantation varied from 8 month to 3 years. IOL explantation was
performed in all 12 patients and IOL were examined by transmission electron
microscopy.
Results: IOL-explantation was uneventful in all 12 patients. The
explanted IOLs showed crystalline deposits 0.5 to 2 µm in diameter
immediately beneath the surface of the lens. In patients with a longer
implantation time deposits could be found located deeper in the lens (about
7 - 10 µm).8 of 12 patients suffered from diabetes mellitus or had
elevated serum levels for glucose.
Conclusion: Postoperative opacification of hydrogel foldable lenses
(Hydroview®) ? might be due to the formation of crystalline deposits
beneath the lens surface. Longer time since implantation were correlated
with deeper depostis. These deposits may result from metabolic disorders,
e.g. diabetes mellitus.