João Breda is an MD PhD with a degree in Ophthalmology. He is a cataract and glaucoma surgeon with a special interest in the treatment of all forms of glaucoma.

He is an attending physician in the glaucoma department at the public hospital Centro Hospitalar e Universitário São João (CHUSJ), in Porto, Portugal, and also works in the private sector. He was ranked the 2nd best in Europe in the European Board of Ophthalmology (EBO) exam in May 2019 and completed a European Glaucoma Society (EGS) fellowship abroad, in Leuven, Belgium, with Professor Ingeborg Stalmans, a world-renowned leader in the field.

He obtained his double doctoral degree from the University of Porto, Portugal, and from KU Leuven, Belgium, and he is a Professor of Ophthalmology at the Faculty of Medicine of the University of Porto. His doctoral thesis focused on the role of ocular blood flow in glaucoma, studying hundreds of glaucoma patients, including a group with low-pressure or normal-tension glaucoma.
He performs clinical research in the field of glaucoma, including studies concerning artificial intelligence, imaging, surgery, epidemiology, and metabolomics. He is an author of several published international research papers.