Dr Dhanji completed his medical degree at Bond University followed by a Master of Medicine in Ophthalmic Science at the University of Sydney. He trained in Ophthalmology at Sydney Eye Hospital and is a Fellow of both the Royal Australian and New Zealand College of Ophthalmologists and the International Council of Ophthalmology.

He has undertaken a medical retina fellowship at Westmead Hospital with Professor Paul Mitchell and the prestigious two-year retina fellowship at the University of British Columbia, Canada.