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Published on: March 8, 2019
[Postoperative deposits on a second-generation silicone lens]
I Tsinopoulos1, A Manthos, P Kalpadakis
1Augenklinik der Aristoteles-Universität, Thessaloniki, Greece.
Background:
In the literature there have often been reports about deposits (hydroxyapatite) in hydrophilic or hydrophobic intraocular lenses (IOLs). We report, for the first time, about deposits on a silicone IOL of the second generation.
Materials And Methods:
A silicone IOL (Allergan, type SI-40) which was extracted due to gradual visual loss, has been examined.
Results:
The examination with the scanning electron microscope (SEM) showed crystalline precipitations in the anterior surface of the IOL while the X-ray analysis showed the existence of calcium and carbon, whereas no phosphorus was found.
Conclusions:
It could be hypothesised that metabolic disorders in aqueous humor (i. e., in patients with diabetes mellitus), the quality of the production of the lens, and not the IOL material, are the main cause for deposits in the IOL surface.
