Abstract:Background/Aims: To evaluate the effect of corneal collagen crosslinking with

Calcification of hydrophilic intraocular lenses (IOL) is a rare complication. We report about the uneventful replacement of an opacified hydrophilic IOL. The patient presented 4 years after uneventful cataract surgery with a reduction of visual acuity due to calcification of the IOL. Macroscopically, the optic and the haptics were opacified. Light and scanning electron microscopy revealed granular deposits on the external surface of the IOL and numerous fine granular deposits within the optic of the IOL which were distributed in a line parallel to the surface of the IOL.

Although preoperative examinations before refractive surgery are becoming more and more accurate and the inclusion criteria for laser ablation have become stricter, iatrogenic keratectasia still occurs. Therefore longer follow-up visits should be performed over a longer period to diagnose keratectasia in an early stage and to provide therapy.

There are various retinal disorders that cause macular degeneration. However, age-related macular degeneration (ARMD) is the main cause of legal blindness in developed countries. Even today the end stage of this disease can often not be avoided. Patients suffer from central scotoma and severe vision loss. Low vision aids may help in certain situations, but these devices are often functionally and cosmetically inadequate. The implantation of the IOL-Vip system is a new surgical alternative. The lens system consists of a high negative power lens (-64 D) which is implanted in the capsular bag and a high positive power lens (+53 D) which is implanted in the anterior chamber. An intraocular Galilean telescope is reproduced by this arrangement. The IOL-Vip system provides a magnification of 1.3 without notably compromising the peripheral visual field. Investigations have shown that visual improvement can be achieved after implantation of the IOL-Vip system combined with a rehabilitation program. In particular orientation and the ability of patients to perform everyday tasks showed improvement.