NRW Eye Clinic: Dr Florian Kretz (FEBO)

Dr Florian Kretz (FEBO)
Medical Director - Founder
Specialist in Ophthalmology
Rheine, Germany

Precise Vision Ophthalmologists Rheine Eye Clinic - Logo

Treatment Focus

  • Cataracts
  • Vision without glasses (refractive surgery)
  • Eyelid surgery
  • Macular diseases
  • Glaucoma
  • Dry eye

Medical Range

Range of Diagnostic Services

Preliminary examinations - follow-up treatments:

  • Biometrics
  • Optical coherence tomography (OCT)
  • Endothelial cell measurement
  • Aberrometry
  • Corneal tomography
  • Tonometry
  • Ultrasound diagnostics
  • Topography
  • Meibography
  • Fluorescence  angiography
  • Tear film osmolarity
  • Image quality
  • Field of vision


  • VICTUS femtosecond laser – Bausch + Lomb
  • Lensar femtosecond laser – Lensar
  • Lens X Laser – Alcon
  • SLT laser
  • YAG laser
  • ALK laser
  • Excimer laser

Range of Therapeutic Services

  • Cataract treatment: cataract surgery with Zepto or femtosecond laser
  • Specialising in individual vision correction with special lenses
  • Refractive surgery: treatment of presbyopia, long and short-sightedness using intraocular lenses, LASIK, LASEK, PRK, femtosecond lenticular extraction, lens implants
  • Reconstructive and aesthetic eyelid surgery
  • Intravitreal injections (injection into the vitreous humour) for age-related macular degeneration and macular oedema for diabetic retinopathy, laser therapy for proliferative diabetic retinopathy
  • Glaucoma therapy: local eye drops, lowering of intraocular pressure by laser surgery, stent
  • IPL light therapy for the treatment of dry eye
  • Vision school

About Dr Florian Kretz (FEBO)

Dr Florian Kretz (FEBO) is a specialist in ophthalmology, Medical Director of the Rheine Eye Clinic and the Greven Eye Clinic, and Managing Partner of the Precise Vision Ophthalmologists' group of clinics and practices which is represented in several locations in Germany.

Dr Florian Kretz is an internationally recognized specialist in ophthalmology, a renowned surgeon, sought-after speaker, and respected scientist.

Perfection for Your Eyes

The guiding principles of Dr Kretz and his colleagues include mottos such as “one step ahead of progress” and “precision for your eyes”. His patients, their satisfaction and well-being are always at highest priority to Dr Kretz.

"Vision is our greatest asset – this is why precision comes first in the treatment of our patients"
according to Dr Florian Kretz (FEBO)

In order to always provide the best treatment to his medical clients and to apply the most modern methods, he relies on personal care and individual counselling. In addition, he only uses the latest treatment approaches. All rooms at his practice are equipped with the most current technology. In order to always keep up to date with latest technical progresses and medical research, Dr Florian Kretz regularly engages in instructing, research, and publishing about the most important topics in ophthalmology. He also takes part in all major ophthalmology and surgery congresses across the globe. He not only informs himself about the latest innovations and state-of-the-art technology abroad, but also maintains his collegial network. In addition, he is always a welcome speaker and discussion leader.

Dr Kretz mainly works and performs surgeries at the Rheine and Greven Eye Clinics. In addition, however, he regularly oversees the other Precise Vision locations. All together, he performs several thousand surgeries each year, mainly minimally invasive cataract operations and refractive surgeries to correct visual defects. He also specializes in the treatment of glaucoma, macular diseases, and all forms of ametropia. Various international specialists work alongside Dr Kretz as part of his team who, with their respective specializations, are able to cover almost the entire spectrum of ophthalmology.

Ophthalmology – Speciality ‘on Smallest Spaces’

The most common eye disorders include cataract, glaucoma, macular diseases, retinal afflictions, conditions as a result of diabetes, vascular occlusions, and maladies of the cornea.


Cataract surgery is one of the most frequently performed surgical interventions in the world. Replacing the clouded natural lens with an artificial intraocular lens results in a significant improvement of a patient's vision. Sometimes, it even means they no longer depend on glasses. The procedure is performed using the micropulse method or femtosecond laser. Both processes are extremely precise, safe, and fast. Plus, they are performed on an outpatient basis. Those techniques are also considered to be the most modern approaches used for cataract surgery. However, choosing the right intraocular lens is also essential for optimal results. For this purpose, Dr Kretz relies on a detailed consultation, because being aware of the demands patients encounter in their everyday life are just as important for choosing the right lens as are the results of preliminary examinations and eye measurements.


A glaucoma is caused by high intraocular pressure. This damages the optic nerve irreversibly, which, if left untreated, can lead to blindness. The initial treatment method is conservative by using hypotensive eye drops. If this medication proves no longer effective or if the patient starts reacting allergic, he can be helped with the insertion of a stent or by applying a laser treatment. The stent insertion can be combined with a cataract surgery, so only one single procedure will be necessary.

Retinal Diseases

Numerous conditions can occur to the retinal area. Retinal holes can be treated with lasers, while retinal detachments must be attended to surgically immediately. Signs of damage to the retina can be sudden laterally occurring visual light flashes or a multitude of acute black dots.

Help for the Eyes in Case of Diabetes or High Blood Pressure

As diabetes and high blood pressure can cause increasing damage to the eye, it is advisable to have regular check-ups performed by an ophthalmologist.

Intraocular Lenses for Presbyopia

The elasticity of the eye lens decreases with age, which is why most people over 45 years of age develop presbyopia. Affected patients are no longer able to see short distances well and reading causes great problems. This in return, often results in headaches. Getting used to varifocals is often difficult and also increases the risk of accidents. Nowadays, there are various methods for treating this form of ametropia. Dr Kretz and his colleagues have been leaders in the correction of presbyopia for many years now. Above all, the selection of the individual lens plays a decisive role here. Only along these lines, everyday and leisure time demands can be satisfactorily corrected.

The Convenient and Central Location of the Clinic in North Rhine-Westphalia Enables Patients to Receive the Highest Quality Care Close to Home

It all started with an existing hospital, a medical center which was 40 years old. Together with a partner, Dr Kretz took over the facility after completing his training as a specialist. The two allies then expanded it into a network of clinics. It quickly became clear to Dr Kretz that individual and best possible patient care should be of first priority. His idea and the desire for innovative technology, optimal care, and continuous educational training served as decisive reasons for Dr Kretz and his wife Nicole Kretz to found the network of "Precise Vision Ophthalmologists" and to break away from the old structures.

The clinic network aims to provide each patient with the best possible treatment and the utmost level of commitment. This philosophy motivates Dr Kretz striving to achieve the best result for each of his patients on a daily basis. He is also able to facilitate additional benefits by regularly conducting clinical trials, in which patients - if their diagnosis is suitable - can participate in and therefore benefit from latest technical innovations and treatment options.

Social Engagement for a Brighter Future

In addition to his medical work, Dr Kretz is involved in various social projects worldwide. Together with a team, he travels to Cambodia once a year, where he provides on-side treatment and performs surgeries on patients who would otherwise have no access to medical care. His surgical team trains local nurses and Dr Kretz himself teaches local ophthalmologists the latest techniques and treatment options. The aim of his multiplier strategy is to convey knowledge to local doctors who in turn can pass it on to their colleagues.

Medical Research – Continuous Improvements for Patients

Research is essential for continuous improvements in modern medicine. Therefore, Dr Kretz is committed to developing new treatment strategies, researching new technologies and instructing young medical professionals.

The experience and knowledge of this renowned surgeon makes him a worldwide benchmark in the field of ophthalmology. In addition to his practical work as a doctor, Dr Kretz is also actively involved in current research and teaching activities. His main research focus is placed on the treatment of cataract, glaucoma, presbyopia, refractive surgery, and macular diseases. At his eye clinics, the ophthalmologist is involved in training young medical professionals and regular conduct in clinical trials for the European and American health authorities. In order to share his knowledge and his latest research results with others, he has already published over 100 announcements circulating in specialized press reports and maganzines.

You can find further information on Dr Kretz's website.


Curriculum Vitae


09/2001 – 06/2003 Started medical studies at the Medical Faculty, Szent-Györgyi Medical University of Szeged, Hungary
06/2003 Interim examination
10/2003 – 11/2007 Medical Faculty, University of Ulm, Germany
14/11/2007 State examinations
19/11/2007 Licence to practise medicine


08/2006 –12/2006 Vascular and Thoracic Surgery, University Surgical Clinic, Ulm, Germany
12/2006 – 04/2007 Internal medicine, Queen Elisabeth Hospital, Bridgetown, Barbados,
 University of Barbados, West Indies
04/2007 – 07/2007 Ophthalmology, University Hospital, Ulm, Germany

Professional experience:

15/03/2008 – 02/2009 Specialist training, University Eye Clinic, Heidelberg, Germany
Prof. Dr H. E. Völcker
03/2009 – 06/2013 Specialist training, University Eye Clinic, Heidelberg, Germany
Prof. Dr G. U. Auffarth
15/04/2009 Certificate for the use of botulinum toxin and hyaluronic acid, Academy for Cosmetic Medicine, Dusseldorf, Germany
01/2010 – 06/2015 Responsibility for private patients, University Eye Clinic, Heidelberg, Germany
27/02/2010 Certificate as Novabel® expert
01/2011 – 06/2015 Research Associate, International Vision Correction and Research Centre (IVCRC) & David J Apple Laboratory, University Eye Clinic, Heidelberg, Germany
05/2011 – 06/2015 Webmaster, University Eye Clinic, Heidelberg, Germany
29/06/2011 – 30/06/2011 GCP Certificate, Coordination Centre for Clinical Studies,
 Heidelberg, Germany
02/2013 Member of the Young Ophthalmologist Committee, European Society of Cataract and Refractive Surgery, Ireland
10-11/05/2013 Fellow of the European Board of Ophthalmology (FEBO), Paris
05/06/2013 Specialist in Ophthalmology, Baden-Wuerttemberg State Medical Association
06/06/2013 – 14/12/2014 Specialist Physician, University Eye Clinic, Heidelberg, Germany
Prof. Dr Gerd U. Auffarth
07/02/2014 Dissertation
11/2014 Founding member of the International Vision Correction Research Network (, University Eye Clinic, Heidelberg, Germany
Prof. Dr Gerd U. Auffarth
15/12/2014 – 30/06/2015 Senior Physician, University Eye Clinic, Heidelberg, Germany
Prof. Dr Gerd U. Auffarth
01/07/2015 – 31/08/2020 Leading Surgeon, Dr Gerl & Colleagues, Ahaus-Raesfeld-Rheine, Germany
01/06/2016 – 31/08/2020 Medical Director, MVZ Dr Gerl GmbH Rheine, Rheine, Germany
01/12/2016 Independent Specialist in Ophthalmology, Ophthalmologists Dr Florian Kretz & Colleagues, Rheine, Germany
01/01/2017 Managing Director of Ophthalmologists for the World gGmbH
07-08/02/2017 DMEK Certificate, DMEK Clinikel Wetlab, NIIos Academy, Rotterdam, Netherlands
27/03/2017 GCP certificate, basic course for investigators/deputy investigators/members of the trial group in clinical drug trials
01/11/2019 Managing Partner - Founder, PVK Precise Vision GmbH
01/04/2020 Managing Partner - Founder, PVK Precise Vision Erlangen GmbH
01/09/2020 Leading Surgeon, Precise Vision Ophthalmologists
01/09/2020 Medical Director, Precise Vision Ophthalmologists

Medical Team

Rheine Clinic

  • Salah Abdassalam
    Specialist Physician (eyelid surgery, specialist in macular diseases)
  • Patricia Bauermann
    Specialist Physician
  • Amirmohammad Rezvan
    Specialist Physician

Greven Clinic

  • Elisabeth Bari-Kacik
    Specialist Physician (eyelid surgery, specialist in macular diseases)
  • Vera Schneider Bonnemeier
    Specialist Physician
  • Stephanie Henke
    Specialist Physician
  • Dr Klaus Neuhaus
    Specialist Physician


The Precise Vision ophthalmologists offer regular free-of-charge theme nights covering the topics of various eye diseases and their treatment options.


Rheine Train Station 2.6 km
Osnabrück Central Station 42.7 km
Münster/Osnabrück Airport 30.4 km
Münster Central Station 44.0 km

Information About Rheine

specialized doctors and medical centers in Rheine

As early as 838, our city on the Ems was mentioned in the deed of donation and is proud of this long history. However, Rheine not only looks back to its roots but also looks to Europe and the world - not least because diverse cultures live here. Rheine's city history can be experienced on a walk through the city center and is reencountered in many places. The two large historical museums, the Bentlage Monastery and the Falkenhof complement the people's passion behind the exhibits.


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Dr Florian Kretz (FEBO)
Medical Director - Founder

Precise Vision Ophthalmologists
Rheine Eye Clinic
Osnabrücker Strasse 233,
D-48429 Rheine

T: +49 5971 6630 10


Monday - Thursday 7:30 a.m. - 6:00 p.m.
Friday 7:30 a.m. - 1:00 p.m.

Precise Vision Ophthalmologists
Greven Eye Clinic

Rathauspassage/Winninghoffpättken 8
D-48268 Greven

T: +49 2571 521 11


Monday - Thursday 7:00 a.m. - 1:00 p.m.,
2:00 p.m. - 6:00 p.m.
Friday 7:00 a.m. - 1:00 p.m.

Precise Vision Ophthalmologists
Steinfurt Eye Practice
Eschstraße 3
D-48565 Steinfurt

T: +49 2551 939 00


Monday 8:00 a.m. - 1:00 p.m.
Tuesday - Thursday 8:00 a.m. - 1:00 p.m.,
2:00  p.m. - 6:00 p.m.
Friday 8:00 a.m. - 1:00 p.m.

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At PRIMO MEDICO, you will only find reputable medical authorities who were selected according to strict guidelines. Experience, innovative treatment techniques or reputation in science and research play an important role here.