Intraocular lenses

Cataract surgery is the most frequently performed operation in the world. Therefore, the demand for intraocular lenses (IOLs) is continuously rising. In addition, patients’ expectations of implants are changing and are met by the development of premium lenses. Consequently, all IOL manufacturers are quickly advancing their research and development for new lens models. Additionally, they require efficient and high quality testing of their IOLs.

As for all medical products, IOLs have to be developed, produced and eventually tested in compliance with the applicable ISO standards. ISO 11979 is applied for IOLs. To fulfill these requirements, instruments for quality inspection of IOLs need to perform in-situ measurements with a physical model cornea and a model eye simulating natural conditions. Measuring parameters like lens aberrations and toric axis deviation or performing power mapping are also of great interest.

Endoscopy

The clarification and treatment of complaints related to our inner organs, such as the gastrointestinal tract, abdomen, respiratory tract, chest area and some joints is possible using an endoscope.

In order to be in a position to guarantee a reliable diagnosis and minimally invasive operation, the quality of the image projected by the endoscope observation optics via a camera onto a monitor is decisive. Whereas major leaps in quality have already been achieved with cameras, the optics installed in an endoscope are now also a quality feature.

The small size of the lenses installed in endoscopes presents a particular challenge during processing of the lenses e.g. to achromats. Special brackets are required for the micro-optics. In order to guarantee that the high quality requirements are met, a great deal of attention is paid to the testing of the optical parameters.