Katrin Voelter - Veterinary Ophthalmologist


 Katrin Afrika


"Veterinary Ophthalmology became my passion. After a year in Ivory Coast in 2010, I realized that I wanted to perform state of the art medicine and therefore started my specialization. Within ophthalmology I discovered that not only can I improve the quality of life for animals; I also enjoy comparing veterinary and human medicine and explore possibilities, exchange knowledge internationally, challenge myself surgically and constantly try to improve as a veterinarian to offer highest standard of care."


Veterinary Ophthalmologist, self-employed consultant

2015 – 2021

Deputy head and senior clinician, Veterinary Ophthalmology section, Vetsuisse Faculty, University of Zurich, Switzerland

2016 - 2019

PhD Graduate College Bern, University of Berne, Switzerland


Diplomate European College of Veterinary Ophthalmology (ECVO)


Veterinary Ophthalmologist, self-employed consultant

2011 - 2014

Residency of the European College of Veterinary Ophthalmology in Paris, France and Zurich, Switzerland


Veterinarian in Abidjan, Côte d’Ivoire

2007 - 2010

Veterinary assistant in Watt, Switzerland

2005 - 2007

Doctoral thesis, Musculosceletal Research Unit, Vetsuisse Faculty, University of Zurich, Switzerland

1999 – 2005

Vet school, LMU Munich, Germany

Academic titles

2019 PhD, Graduate College Bern, Switzerland
2015 Diplomate of the European College of Veterinary Opthalmologists
2007 Doctoral thesis, Dr. med. vet., Zurich, Switzerland



Lavaud A, Kowalska ME, Voelter K, Pot SA, Rampazzo A. Penetrating Keratoplasty in Dogs using Acellular Porcine Corneal Stroma (BioCorneaVet™): A prospective pilot study of five cases. Vet Ophthalmol. 2021 Mar 28. doi: 10.1111/vop.12884. Epub ahead of print. PMID: 33774897.

Soukup A, Meier V, Pot S, Voelter K, Rohrer Bley C. A prospective pilot study on early toxicity from a simultaneously integrated boost technique for canine sinonasal tumours using image-guided intensity-modulated radiation therapy. Vet Comp Oncol. 2018 Dec;16(4):441-449. doi: 10.1111/vco.12399. Epub 2018 May 14. PMID: 29761663.

Stadler S, Dennler M, Hetzel U, Del Chicca F, Hoey S, Spiess BM, Voelter K, Pot SA. Sub-Tenon's injection in equine cadaver eyes: MRI visualization of anesthetic fluid distribution and comparison of two different volumes. Vet Ophthalmol. 2017 Nov;20(6):488-495. doi: 10.1111/vop.12452. Epub 2016 Dec 23. PMID: 28008696.

Suter A, Voelter K, Hartnack S, Spiess BM, Pot SA. Septic keratitis in dogs, cats, and horses in Switzerland: associated bacteria and antibiotic susceptibility. Vet Ophthalmol. 2018 Jan;21(1):66-75. doi: 10.1111/vop.12480. Epub 2017 May 29. PMID: 28557367.

Lavaud A, Lautenschläger IE, Voelter K, Ivan D, Dennler M, Pot SA. The localization of a conjunctivoscleral foreign body via high-resolution microscopy coil magnetic resonance imaging in a dog. Vet Ophthalmol. 2019 Sep;22(5):703-709. doi: 10.1111/vop.12671. Epub 2019 Apr 11. PMID: 30977286.

Stucki M, Voegel CD, Binz TM, Kraemer T, Lavaud A, Voelter K. Systemic detectability of dexamethasone and prednisolone after eye drop application in horses. Equine Vet J. 2021 Nov;53(6):1250-1256. doi: 10.1111/evj.13418. Epub 2021 Jan 28. PMID: 33421187.

Voelter K, Tappeiner C, Klein K, Borel N, Bruetsch D, Laguna Sanz F, Pot SA. Fibrinolytic Capacity of Desmoteplase Compared to Tissue Plasminogen Activator in Rabbit Eyes. J Ocul Pharmacol Ther. 2019 Jan/Feb;35(1):66-75. doi: 10.1089/jop.2018.0070. Epub 2018 Oct 30. PMID: 30376399.

Andrysikova R, Pot S, Rüegg S, Markova J, Horackova E, Kolos F, Voelter K, Spiess B. Ocular abnormalities in a herd of Old Kladruber Horses: A cross- sectional study. Vet Ophthalmol. 2019 Jul;22(4):462-469. doi: 10.1111/vop.12614. Epub 2018 Oct 5. PMID: 30288880.

Voelter K, Tappeiner C, Riond B, Nuss K, Bruetsch D, Pot SA. Evaluation of D-dimer levels in aqueous humor of rabbit eyes with and without induced intraocular fibrin and fibrinolytic treatment. Vet Ophthalmol. 2020 Mar;23(2):212-218. doi: 10.1111/vop.12706. Epub 2019 Aug 22. PMID: 31441205.

Casola C, Pot SA, Lavaud A, Voelter K. Corneal cross-linking as a treatment for corneal dystrophy with secondary bacterial infection in a Friesian horse. Clin Case Rep. 2020 Feb 26;8(4):709-715. doi: 10.1002/ccr3.2725. PMID: 32274042; PMCID: PMC7141748.

Andrysikova R, Sydler T, Kümmerlen D, Pendl W, Graage R, Moutelikova R, Prodelalova J, Voelter K. Congenital Microphthalmic Syndrome in a Swine. Case Rep Vet Med. 2018 Jun 21;2018:2051350. doi: 10.1155/2018/2051350. PMID: 30034906; PMCID: PMC6033249.

Voelter K, Vial Z, Pot SA, Spiess BM. Leptospiral antibody prevalence and surgical treatment outcome in horses with Equine Recurrent Uveitis (ERU) in Switzerland. Vet Ophthalmol. 2020 Jul;23(4):648-658. doi: 10.1111/vop.12767. Epub 2020 Apr 30. PMID: 32352624.

Casola C, Winter-Kempf E, Voelter K. Bacterial contamination of slit lamps in veterinary ophthalmology. Vet Ophthalmol. 2019 Nov;22(6):828-833. doi: 10.1111/vop.12658. Epub 2019 Feb 27. PMID: 30815966.

Voelter-Ratson K, Monod M, Braun U, Spiess BM. Ulcerative fungal keratitis in a Brown Swiss cow. Vet Ophthalmol. 2013 Nov;16(6):464-6. doi: 10.1111/vop.12037. Epub 2013 Feb 26. PMID: 23437914.

Voelter-Ratson K, Pot SA, Florin M, Spiess BM. Equine keratomycosis in Switzerland: a retrospective evaluation of 35 horses (January 2000-August 2011). Equine Vet J. 2013 Sep;45(5):608-12. doi: 10.1111/evj.12042. Epub 2013 Mar 12. PMID: 23489138.

Voelter-Ratson K, Monod M, Unger L, Spiess BM, Pot SA. Evaluation of the conjunctival fungal flora and its susceptibility to antifungal agents in healthy horses in Switzerland. Vet Ophthalmol. 2014 Jul;17 Suppl 1:31-6. doi: 10.1111/vop.12088. Epub 2013 Aug 2. PMID: 23910390.

Voelter-Ratson K, Hagen R, Grundmann S, Spiess BM. Dacryocystitis following a nasolacrimal duct obstruction caused by an ectopic intranasal tooth in a dog. Vet Ophthalmol. 2015 Sep;18(5):433-6. doi: 10.1111/vop.12225. Epub 2014 Oct 14. PMID: 25312093.

Pot SA, Gallhöfer NS, Matheis FL, Voelter-Ratson K, Hafezi F, Spiess BM. Corneal collagen cross-linking as treatment for infectious and noninfectious corneal melting in cats and dogs: results of a prospective, nonrandomized, controlled trial. Vet Ophthalmol. 2014 Jul;17(4):250-60. doi: 10.1111/vop.12090. Epub 2013 Aug 14. PMID: 23941330.

Brütsch DR, Hunziker P, Pot S, Tappeiner C, Voelter K. Corneal and scleral permeability of Desmoteplase in different species. Vet Ophthalmol. 2020 Sep;23(5):785-791. doi: 10.1111/vop.12782. Epub 2020 Aug 30. PMID: 32862517.

Veterinary Ophthalmology, Gelatt, 6th edition, Orbit chapter

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