Dr Holló is the recipient of several awards, including the Széchenyi Professor Award (2000), the European Glaucoma Society’s (EGS) Special Recognition Award (2003), the Schulek Vimos Award by the Hungarian Ophthalmology Society (20014), and the Anagnostakis - Trantas Gold Medal by the Greek Glaucoma Society. He is a former Executive Committee member of the EGS, and the Founder and for 15 years the President of the Glaucoma Section of the Hungarian Ophthalmology Society. His work for the EGS notably includes a contribution to the development of the European Diagnostic and Treatment Guidelines.
Professor Holló is a reviewer for several international ophthalmology journals and serves on the editorial boards of several scientific journals. He has edited several books and book chapters, and authored or co-authored numerous scientific peer-reviewed publications. His main research interests are in the pathogenesis, imaging, early diagnosis and medical, laser, and surgical treatment of glaucoma.