Primary IOL + AddOn Trifocal = Liberty²

The Dual-lens system Liberty2 is an application of the trifocal AddOn IOL to achieve visual freedom for pseudophakic patients who desire a trifocal upgrade or for patients that require reversible trifocality.

dual-lens system Liberty² family: AddOn IOL and basis IOL types

What are the key benefits of Liberty²?

  • Upgrade patients to trifocality and improve their quality of life by reducing the need for spectacles.
  • Combine the AddOn IOL independently of the patients' primary lens status.
  • Provide a highly individualized and precise treatment outcome with over 3.300 potential refractive power combinations.
  • Land your patient at the desired target refraction with your preferred surgical intervention technique.
  • Reverse the procedure in case the patient`s visual outcome requires it.
cross section of an eye with implanted Liberty² dual-lens system

The Functional Principle of Liberty²

The Dual-lens system can be explained by way of comparison:

In modern camera objectives a combination of multiple lenses provides for an optimal image quality in different lighting conditions, object sizes and distances.

Liberty² follows this principle.

The focal adjustment in the Dual-lens system is enabled by the AddOn IOL, adding the function of sharp vision at short and intermediate distances.

Liberty² dual-lens system explained using a reflex camera

Who is the ideal candidate for Liberty²?

Typically, surgeons opt for Liberty² as their preferred trifocal solution in the following cases:

  • Monofocal pseudophakic patients desiring spectacle independence through a trifocal upgrade
  • Presbyopic patients requiring an option of reversibility (neuroadaption risks)
close up of basis IOL and AddOn IOL for Liberty² dual-lens system

This is what Experts say about Liberty²

In many eye doctors’ offices and clinics Liberty² has become an important therapeutic module for the treatment of presbyopia.

We tested the Liberty² optic on the optical bench of the David J Apple Laboratory at the Heidelberg University Eye Clinic. The test revealed that the additional interfaces, as compared to the classical MIOL, do not impair the optical quality whatsoever. As a matter of principle, the multifocality is reversible and may be geared to meet the requirements of the patient quite individually. This proves a major benefit of the Liberty² optic.

The Liberty² optic with its progressive trifocal array is just great. The options to combine the two lenses are providing a high degree of adaptability to cope with refractive situations. Both handling and safety of the system are convincing.

Prof. Gangolf Sauder, MD, Head of Charlottenklinik für Augenheilkunde, Stuttgart/Germany

I feel comfortable with the offensive approach: a planned 2-step trifocality with Basis IOL in the capsular bag and the AddOn trifocal in the sulcus. The superindication for this technique is RLE or post-LASIK cataract surgery. Refractive surprises shall be avoided completely.

Until today, our surgical options for pseudophakic patients desiring spectacle-free life were limited to IOL replacement. But now we have Liberty2 with excellent visual results. My patients gained excellent near and intermendiate vision, including correction for distance in specific cases. All this with a simple surgery without the risk of surgical complications of IOL exchange. This is a new revolution in refractive surgery.

Levent Akçay, MD, Dünya Göz Hastanesi Hospital, Istanbul, Turkey

I am convinced of this concept. Liberty² enables me to provide my patients with the best trifocal eye care currently available. It offers the option for lens exchange or retrofit at any time in the event of whatever kind of intolerance or improvements as future technologies emerge. This is its most important benefit in my opinion.

Once the first enthusiastic Liberty² patients had shown up with excellent results, we felt encouraged to further promote the dual-lens system, even for clear-lens patients. Liberty² enables me to provide quite individual care for my patients in the future. 

The Liberty² implantation procedure, combining Basis IOL and AddOn in one intervention, works without any problem and the AddOn shows excellent centration in the ciliary sulcus. As of now, the Dual-Lens System of 1stQ will always be mentioned as a surgical option of the patient information provided in our ophthalmic practice.

I have tried it on myself. I now have Liberty² in both eyes. I am getting along well again without spectacles in all circumstances. This gives me a new kind of life awareness with a feeling of freedom after many years of constraints with varifocal glasses.

Rüdiger Dworschak, Graduate Engineer, Founder and CEO 1stQ

Liberty² for Download

In the download area, physicians and patients will find comprehensive information material on Liberty². You may download documents such as brochures, data sheets and the latest publications.

Information material

Any questions as to Liberty²? In this case, please contact your 1stQ International sales team.

  1. All the Business related topics will be handled by the Export Manager in charge of your region.

  2. All the 1stQ AddOn Clinical topics (including AddOn calculations) will be handled by Mrs. Monika ADANYI :