High-quality optics form the basis for imaging procedures for pre and post-operative examinations. High magnifications by means of integrated lens systems allow detailed investigations to be carried out on the fundus. The use of aspheres also provides a more compact optical system, easier handling and lower material costs. Diffraction-limited imaging systems allow a slit lamp with integrated image and video function to capture and store pin-sharp images of the corneal surface. The result is also a time saving in the communication between examiner and patient, thanks to image-supported information about surgical procedures.
Due to their high optical density, laser protection filters in ophthalmological instruments enable safe working with the laser. Only the light that is harmless to the eyes of the examiner allows them to pass and blocks the passage of laser beams (see figure 1). At the same time, the high degree of transmission of the laser protection filters ensures that an image of the region to be treated can be created, e.g. at the back of the eye.