A new vision of Presbyopia

ISOVision Technology is a new optical approach to correct presbyopia without using myopia, multifocal , monovision or pinhole . It is a treatment of the cornea with excimer laser based on a specific software to correct distance vision and near simultaneously.

How to use the software ?

Enter in the era of Presbylasik!

The optic of ISOVISION makes it accessible to a large number of patients surgery of presbyopia. With a wide variety of medical contribution and advice, many barriers have fallen. Medical contraindications oflaser surgery to treat presbyopia are now smaller.

Indeed, the ISOVision Technology is the first and only solution to treat presbyopia in presbylasik regardless of ocular dominance, to treat pseudophakic patients, high myopia or previously laser operated eyes.

Learn more about the technology IsoVision

Imagine - Conceptualize - Develop

The IsoVision technology is the result of 8 years of development and optimization. Most of the work was theoretical and based on developments of mathematical models. This work was led by Dr. Frederick HEHN and Centre de la Vision™, with the help of French and international ophthalmologists.

Learn more about the contributors

Features of the technology IsoVision

Large patient base concerned

  • Age : 40 to 75 Years
  • Sphere : -10 to +6
    (Myopic, Hyperopic, Emmetropic)
  • Cylinder : -6 to +6 (Astigmatism)
  • Already traited de Cataract, LASIK, Monovision...

All in one Software

The software takes into account the patient's age and its residual accommodation.
It takes into account the abacuses of Wellington, and the specific induced by the laser used. It is always used in the same way and fits precisely the particularities of each patient.

Advantages of the technique

  • No Monovision
  • More people operable
  • Respect for binocular vision
  • No specific blurred vision (halos, loss of contrast or reduction of vision ...)
  • Thin cornea, operable in PKR

Details of the technology


The ISOVISION technology uses mathematical formulas built into a calculation software, and allow to create the operating plans for surgeries of presbyopia by excimer laser.

New Software New Shape New Result

Opt for the accuracy of software ISOVISION TECHNOLOGY. The shape of the cornea created by IsoVision Technology software is unique. It provides a clear and precise vision over a wide depth of field blur intermediary, on each eye. This unique shape also improved night vision by increasing the accuracy of PSF (Point spread function).

Toporefractive stability

The toporefractive stability of this new form of cornea is obtained about a month after surgery. However, corneal density being variable from one individual to another, this duration may be longer or shorter. No patient should be re-operated before the complete stability of the corneal topography.

Use the software

On Alcon laser

The solution was first developed on lasers of this brand, thanks to the wide possibilities for customization of treatments. Only the EYE-Q versions allow you to use our software. (WL200, WL400, EX500).

Access to the Software

On the other laser platforms

Software under development.

Access to the Software

Access to the Software

ISOVision Technology™ is a Calculation Software of presbyopic treatment. It is only available on this internet platform. It can be used from your smartphone, tablet or computer, in any place. Being available online only, you will always use the latest version.

The ease of access and use will allow aquick start and applies to a wide typology of patients.

Use of the treatment plan

The treatment plan is divided into two distinct parts: a treatment for far vision and a treatment for near vision. This method allows the surgeon to ensure the high precision of each of corrections (far and near).
Transparencyof the surgical plan also allows surgeons to assess in advance the amount of treatment provided.

Laser treatments from the IsoVision technology are not computer-integrated into the laser, the surgeon remains master of programming treatment, and may - if he has the skills - apply changes.

The treatment plan has been simplified (visually) compared to the first version. It is now more easily understood by the practitioner and the patient can explain the surgery to be applied.

Safety Check

The large number of data returned to the laser during surgery for presbyopia (whether made Monovision simple / advanced or IsoVision) can lead to input errors.
So we added asecurity checkAdditional treatment plan to eliminate data entry errors on treatments IsoVision.

Ophthalmologists opinion using software

"ISOVision: La multifocalité bilatérale pour tous les patients presbytes"
Alain Hagege, Chirurgien Ophtalmologiste, Paris, France
"ISOVision Technology m'a permis d'opérer des monophtalmies fonctionnelles, sans vision binoculaire, alors que la monovision ne me le permettait pas."
Thierry Mathieu, Chirurgien Ophtalmologiste, Bar-Le-Duc, France
"ISOVision est une technique laser efficace, sûre et fiable pour compenser la Presbytie. Elle assure une bonne qualité de vision à toutes les distances pour chaque oeil."
Claudio Assadi, Chirurgien Ophtalmologiste, Santiago, Chili
Tableau comparatif des différents traitements disponibles sur chaque laser pour la correction de la presbytie
Publié dans Cataract & Refractive Surgery Today 2014, par Arthur B. Cummings, Chirurgien Ophtalmologiste, Dublin, Irlande
"Isovision, un petit ΔQ pour l'ophtalmologie et un grand pas pour les presbytes"
Jerôme Bovet, Chirurgien Ophtalmologiste, Prevessin Moens, Suisse


The optics IsoVision was developed within the "Centre de la Vision" by Dr. Frederic HEHN. But its current level of precision is due to many ophthalmologists who participated in improvements. The IsoVision treatments are from thinking of many ophthalmologists (including those below) wishing to improve their skills for the benefit of the health of their patients.

Dr Claudio Assadi Zaror

Elaboration of C4-Constant

Dr Alain Hagege

Theorization of asphericity

Dr Jérôme Bovet

Asphericity of pseudophakic

Dr Thierry Mathieu

Progressive reduction of the addition

Dr Charles Ghenassia

Reactivation of residual accommodation

Dr Thierry Vandorselaer

Biomechanics of the cornea

Dr Magda Rau

Opinion leader Presbyopia speaker