Arnold graduated from the National Veterinary School of Toulouse (France) in 2013. Following his graduation, he pursued his education with a specialized internship in Ophthalmology in the same Veterinary School and then worked for 3 years in private practice. He completed a veterinary ophthalmology degree (post graduated national diploma) in 2013 and an electrodiagnostic evaluation of vision degree (national diploma) in 2016. He underwent a residency training program from 2017 and 2020 at the University of Zurich under the supervision of Simon Pot, Antonella Rampazzo and Katrin Voelter. He successfully took his ECVO Certifying Examination in 2021. Since 2021 he is working in Geneva and the whole Lake Geneva Region area as a specialist in veterinary ophthalmology for all species.