Preventing secondary cataract and anterior capsule contraction by modification of intraocular lenses.

Advances in intraocular lens (IOL) design have led to the use of lenses with improved performance including tinting, asphericity, multifocality and accommodation. To maximize the visual performance of these IOLs, postoperative complications such as secondary cataracts and anterior capsule contraction must be prevented. Various types of secondary cataracts may occur, each associated with complex biological reactions.

Active oxygen processing for acrylic intraocular lenses to prevent posterior capsule opacification.

Purpose: To evaluate active oxygen processing on the surface of acrylic intraocular lenses (IOLs) to prevent secondary posterior capsule opacification (PCO).

Setting: Department of Ophthalmology, Dokkyo Medical University School of Medicine, Mibu City, Tochigi, Japan.

Methods: Acrylic IOLs were prepared, and ultraviolet (UV)/ozone (UV/O3) or argon plasma was irradiated to the surface of the IOLs.