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University Hospital Frankfurt am Main

Department of Adult and Pediatric Ophthalmology (26131)

Thomas Kohnen

Prof. Dr. med.

Thomas Kohnen

Specialized in: adult and pediatric ophthalmology

About the department

The Department of Adult and Pediatric Ophthalmology at the University Hospital Frankfurt am Main offers the full range of modern diagnostics and effective treatments for eye diseases. The department specializes in cataract, glaucoma, refractive eye surgery, surgical treatment of corneal, retinal and vitreous pathologies, correction of strabismus, surgical treatment of diseases of the eyelids and tear ducts. An integral part of the department's doctors work is the treatment of children with eye problems. The department is headed by Prof. Dr. med. Thomas Kohnen.

The department is proud of its long history and exceptional experience in the field of its competence. It treats more than 30,000 outpatients and inpatients every year, which demonstrates the excellent reputation of the medical facility.

The department is engaged in active research activities, which allow for the implementation of innovative treatment techniques into clinical practice. All diagnostic and therapeutic measures aim to preserve or restore vision, thereby not to worsen the patient's quality of life. The department is certified in accordance with DIN EN ISO 9001:2008 standards, as well as by the Commission for Refractive Eye Surgery (Joint Commission of the Professional Association of German Ophthalmologists and the German Society of Ophthalmology).

The diagnostic range of the department includes:

  • Eye examination using aberrometer
  • Tear fluid analysis, smears
  • Amsler Grid Test
  • Intraocular pressure measurement (tonometry)
  • Fundus examination
  • Refractometry using automatic refractometer
  • Corneal endothelial microscopy
  • Color tests
  • Fluorescein angiography
  • Visual field test (perimetry)
  • Corneal thickness measurement (pachymetry)
  • Heidelberg retinal tomography
  • Biometrics using IOL-Master™ (measures length of the eye (axial length), radii of corneal curvature (keratometry), distance between the cornea and the lens (depth of the anterior chamber) and the corneal diameter)
  • Optical coherence tomography
  • Intraocular pressure measurement using PASCAL® Dynamic Contour Tonometer
  • Retinal visual acuity test using retinometer
  • Schirmer's test
  • Slit lamp microscope examinations
  • Diagnostic flushing of the lacrimal ducts
  • Ultrasound examination
  • Other diagnostic services

The therapeutic range of the department includes:

  • Cataract surgery
    • Cataract in childhood
    • Cataract in elderly
    • Cataract after injuries, accidents
    • Cataract in patients after previous refractive eye surgery
      • LenSx femtosecond laser
      • Femto-LASIK
      • Premium intraocular lens models
  • Laser vision correction (refractive surgery)
    • Laser procedures (Femto-LASIK, photorefractive keratectomy)
    • Focal intraocular lenses (ICL/Artisan/Verisyse)
    • Refractive lens exchange
      • Premium intraocular lens models
      • Aspheric intraocular lenses
      • Toric intraocular lenses
      • Blue light-filtering intraocular lenses
      • Presbyopia correcting intraocular lenses
      • Multifocal intraocular lenses
      • Light-adapting lenses 
    • Presbyopia treatment
      • Multifocal lenses
      • LASIK procedure
      • KAMRA inlay (a unique department's offer)
      • Innovative FlexiView implant 
  • Treatment of corneal diseases (special focus on keratoconus)
    • Corneal degeneration
    • Corneal dystrophy
    • Corneal opacity
    • Corneal injuries
      • Corneal UV-riboflavin cross-linking 
      • Keratoplasty (corneal transplantation): DMEK, DALK, DSAEK, classical keratoplasty, keratoplasty using femtosecond laser
  • Treatment of retinal and vitreous diseases
    • Treatment of age-related macular degeneration (injection therapy)
    • Pharmacology
    • Pars plana vitrectomy
    • Laser therapy in retinal diseases, including micropulse procedures
    • Injection of drugs in the eye in the case of macular diseases
    • Retinal detachment correction
    • Laser and surgical treatment of retinopathy of prematurity
    • Treatment of diabetic retinopathy
    • Treatment of age-related macular degeneration using rheopheresis
  • Treatment of ophthalmic diseases in children
    • General pediatric ophthalmology
      • Early detection of congenital and acquired visual impairments
      • Screening tests for retinopathy of prematurity
      • Primary adaptation using contact lenses after surgery for the treatment of congenital cataracts (including infants)
      • Diagnostics and surgical treatment of tear duct pathologies in infants and children
      • Pediatric cataract surgery
      • Corneal transplantation in children
      • Diagnostics of glaucoma in childhood
      • Comprehensive imaging diagnostics: pentaCAM, Orbscan, OCT, Heidelberg retinal tomography, etc.
    • Strabismus correction and neuro-ophthalmology
      • Surgical and non-surgical treatment of strabismus in infants, children and adults
      • Treatment of amblyopia
      • Neuro-ophthalmlogical diagnostics in children and adults
  • Glaucoma treatment
    • Interventions to reduce the aqueous humor formation by the chambers of the eye
      • Cyclic photocoagulation using diode laser
      • Cyclococoagulation
    • Interventions to improve aqueous humor formation by the chambers of the eye
      • External trabeculotomy
      • Trabeculectomy using the injection of antimetabolites
      • Implantation of titanium micro-stent i-Stent inject XEN
  • Plastic and reconstructive eyelid surgery
    • Surgery to treat entropion, ectropion and ptosis in adults and children
    • Surgical treatment of eyelid tumors
    • Blepharoplasty of the upper and lower eyelids
    • Diagnostics and surgical treatment of tear duct diseases in adults, children and infants, including percutaneous and endonasal dacryocystorhinostomy
    • Imaging and balloon dilatation of the tear ducts
    • Interdisciplinary cooperation with the Department of Otolaryngology in the case of endoscopic interventions for the treatment of tear duct stenosis
    • Botulinum toxin therapy in adults with eyelid spasm (blepharospasm)
  • Consultations on the selection of contact lenses
  • Treatment of uveitis
  • Other diseases of the eye and its appendages, other therapeutic methods

Curriculum vitae

  • 1982 - 1989 Study of Human Medicine at the RWTH Aachen, Friedrich-Wilhelms University in Bonn, University of Minnesota in Minneapolis, USA.
  • 2006 - 2007 Health Economics, European Business School, International University (Health Economist).

Doctoral Thesis Defence

  • 1989 Thesis, Friedrich-Wilhelms University in Bonn. Subject: "Capsule rupture and zone separation as complications of surgical cataract treatment with phacoemulsification".

Habilitation

  • 2000 Habilitation, Johann Wolfgang Goethe University Frankfurt am Main. Subject: "Thermokeratoplasty with Ho:YAG laser for the treatment of hyperopia: histological, ultrastructural, immunohistochemical and clinical studies".

Professional Career

  • 1986 - 1987 Scholarship of the German Academic Exchange Service (DAAD), Milan (Italy), Bombay (India).
  • 1989 Medical examination.
  • 1989 - 1992 Research Fellow, Bonn Dardenne Clinic (Intern, Assistant Physician).
  • 1991 Admission to medical practice.
  • 1992 - 1993 Research Fellow, Department of Ophthalmology, University Hospital Giessen (Assistant Physician).
  • 1994 Board certification in Ophthalmology, Tübingen.
  • 1994 - 1995 Senior Physician, Bundeswehr Hospital, Academic Hospital of Ulm University, basic military service (Medical Worker) and military training (Senior Physician).
  • 1995 Traveler Scholarship, International Society of Refractive Surgery, Minneapolis, USA.
  • 1995 - 1997 Research Internship, German Research Foundation, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas (USA). "Physiology and pathophysiology of refractive surgery of the cornea with laser thermokeratoplasty (LTK). Experimental and clinical research."
  • 1996 Appointed as a Senior Physician.
  • 1997 C1 Research Fellow and Senior Physician, Department of Ophthalmology, Johann Wolfgang Goethe University Frankfurt.
  • 2000 PD, Johann Wolfgang Goethe University Frankfurt.
  • Since 2000, Visiting Professor in Ophthalmology, Cullen Eye Institute, Baylor College of Medicine, Houston, Texas (USA).
  • 2001 University Docent (C2) and Senior Physician, Department of Ophthalmology, Johann Wolfgang Goethe University Frankfurt.
  • 2003 Invitation to the position of Professor (C3), Department of Ophthalmology, Johann Wolfgang Goethe University Frankfurt.
  • 2003 - 2012 Deputy Head of the Department and Leading Senior Physician, Department of Adult and Pediatric Ophthalmology, University Hospital Frankfurt.
  • 2007 Military training (Senior Regimental Physician), Bundeswehr Hospital, Ulm.
  • 2008 Fellow of the European Board of Ophthalmology (FEBO).
  • 2011 Invitation to the position of Professor (Val and Edith Green Presidential Professorship), University of Utah, Salt Lake City, USA.
  • 2011 Invitation to the position of W3 Professor, Ophthalmology, University Magdeburg.
  • 2011 Invitation to the position of W3 Professor, Johann Wolfgang Goethe University Frankfurt.
  • 2012 Head of the Department of Adult and Pediatric Ophthalmology, University Hospital Frankfurt.

Awards and Honors

  • 1994 Best Paper of Session, American Society of Cataract and Refractive Surgery.
  • 1994 First Prize of the Festival (co-author), European Society of Cataract and Refractive Surgery.
  • 1995 Best Paper of Session, American Society of Cataract and Refractive Surgery.
  • 1996 Goar Award (co-author) from Baylor Alumni Meeting, Houston, TX, USA.
  • 1996 Research Award, German Society of Ophthalmology.
  • 2000 Kiewiet de Jonge Medal, European Society of Cataract and Refractive Surgery.
  • 2001 Research Award (jointly with Dr. J. Bühren), German Society of Ophthalmology.
  • 2002 Leonhard Klein Award, German Society of Ophthalmology.
  • 2002 Achievement Award from the American Academy of Ophthalmology.
  • 2005 - 2006 Cataract & Refractive Surgery Today, selection as one of the Top 50 opinion leaders.
  • 2005 Kiewiet de Jonge Medal, European Society of Cataract and Refractive Surgery (co-author). 
  • 2005 3rd Prize for Educational Value, European Society of Cataract and Refractive Surgery, Alcon Annual Video Festival.
  • 2006 Video Winner, R.M.O. Meeting, Zermatt.
  • 2007 Sicca Research Award, German Society of Ophthalmology.
  • 2009 Senior Achievement Award for many years of distinguished service in programs of the Society from the Board of Trustees, American Academy of Ophthalmology.
  • 2010 Focus doctors list 2010, expert in refractive and cataract surgery.
  • 2010 Gold Medal, German Society of Ophthalmology.
  • 2013 Prize for Extraordinary Commitment in Teaching.
  • 2014 Silver Medal, German Society of Ophthalmology.

Department of Adult and Pediatric Ophthalmology.
University Hospital Frankfurt am Main:

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