[Mirror effects caused by intraocular lenses].
The PMMA intraocular lens has a far greater reflective capacity than the human lens. This reflective quality can be demonstrated through slit lamp biomicroscopy similar to the phenomenon producing the known Purkinje-Sanson mirror images. The arrangement of these images depends on lens centration and lens tilt. Since the introduction of lens implantation, such observations are clinically interesting, and until now this area has mostly been left unexplored. Furthermore, the highly reflective surface of intraocular lenses allows objects within the eye to be reflected. In this way, one can observe the pupillary margin of the iris "from the back" and the anterior chamber cells as a viral image due in the vitreous. The natural human lens does not produce this phenomenon, as its reflective capacity is low, a point in itself that is of special interest. Spectacles and optical instruments are treated today for the most part with a non-reflective surface to enhance contrast and avoid glare. Consequently, because of the high reflectivity of surfaces, glare may now be produced within the eye by intraocular lenses. On the other hand, technical attempts to reduce intraocular glare by artificial lenses should not interfere with the clinical interests of maintaining good biocompatibility.
Meyner
E M
EM
Augenklinik am Städtischen Krankenhaus, Pforzheim.
D006801:Humans; D007910:Lenses, Intraocular; D008768:Methylmethacrylates; D055095:Optics and Photonics; D011183:Postoperative Complications / Q000209:etiology*
D008768:Methylmethacrylates
Spiegelungseffekte durch Intraokularlinsen.