Cataract is a consequence of the natural aging of the lens. It is therefore not a disease, but the crystal-clear lens becomes cloudy.


  • Blurred vision
  • Increased glare, especially at night
  • Visual acuity decreases
  • Rapid changes in the refraction

If the patient feels handicapped by the reduced visual acuity, a cataract surgery can be useful.


Cataract surgery is the most frequently performed surgical procedure in the world. It is performed on an outpatient basis either under local anesthesia or according to your preferences under mild sedation. If surgery is necessary in both eyes, the second eye is treated a few days or even weeks later.

Typically, the lens is fragmented with ultrasonic energy and finally aspirated (phacoemulsification).

The surgery can also be performed with the femtosecond laser:

The advantages of the Catalys high precision laser system consist of the accuracy of the surgical procedure, the gentle method, the rapid rehabilitation and the possibility of correcting astigmatism at the same time.

We offer both procedures and perform them routinely.

After aspiration of the cataract with one of the aforementioned methods, an intraocular lens is implanted.

Intraocular Lenses (IOL)

During cataract surgery, the eye surgeon replaces the natural lens of the eye with an intraocular lens (IOL).

The patient has the choice between a standard lens or a so-called premium lens.

The standard lenses offered by public health care services, are of good quality. However, there are intraocular lenses, which provide features very similar to the natural lens or even better:

  • Aspheric intraocular lenses for better vision in twilight
  • Toric lenses to correct astigmatism
  • Progressive intraocular lenses for an extended field of vision

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Premium lenses

Premium lenses

Aspheric intraocular Lenses

The standard lens is a spherical lens. The front and back surfaces of the lens have a spherical shape. All spherical lenses have the following characteristics:

Light rays that do not pass through the centre of the lens, will be refracted more than those rays that pass through the center close to the optical axis. The spherical lenses therefore do not have an exact focus. This is called spherical aberration. An aspherical surface design will correct the spherical aberration.

If you opt for the intraocular lens (IOL) with additional functions (premium lens), it is necessary to do some other special measurements.

We go a step further with the choice of an ideal intraocular lens (IOL). We will select the best fitting aspherical intra-ocular lens for you – irrespective of the manufacturer.

This vision at dusk or at night (with a large pupil) will be particularly optimized.

Toric intraocular lenses

These lenses are used to correct astigmatism. The lenses are individually manufactured and implanted according to the axial position of the astigmatism with great precision.

The toric intraocular lenses are also available with an extended field of vision function, as a toric-progressive IOL and generally have an aspherical surface design.

Multifocal intraocular lenses

The multifocal intraocular lenses are designed to reduce the dependence on eyeglasses with excellent visual results for everyday situations, as compared to a standard lens implant. The modern Symfony IOL has a continuous vision field without disturbing glare or halos.