About
Our Mission
Glaucoma is the leading cause of irreversible blindness in the world and most people who have it do not know. G-Screen exists to change that. Built on clinically validated visual function technology, it is designed to scale awareness digitally, reaching far more people than traditional pathways ever could, at no cost to the individual. Our mission is to reach people before damage occurs, give them the information they need to take it seriously and connect them to professional care.
Founder
John Nguyen
BOptom (UNSW) · Optometrist · Director, Zoom Optics · Creator, G-Screen
The idea for G-Screen started in a GP waiting room. Sitting there, watching people move through their appointments, I found myself wondering how many of them might be living with undiagnosed glaucoma and don't even know it.
The longstanding problem deserved a modern day solution. G-Screen was developed with a hope to reach the patients where the clinicians could not.
I believe the future of healthcare starts with prevention, with technology as an enabler for earlier access and better public education.
Advisory Panel
A/Prof George Kong
MBBS, BMedSci, PhD, FRANZCO · MRF Co-founder
Glaucoma subspecialist ophthalmologist and Honorary Clinical Associate Professor at the University of Melbourne. Consultant at the Glaucoma Research and Investigation Unit, Royal Victorian Eye and Ear Hospital. Co-founder and Director of GLANCE Optical, the company behind Melbourne Rapid Fields (MRF) - the clinically validated visual field platform powering G-Screen.
Prof Algis Vingrys
PhD, BSc(Optom), PGCertOcTher, FARVO, FAAO · MRF Co-founder
Emeritus Professor of Optometry and Vision Sciences at the University of Melbourne and former Head of Department. A recognised authority in visual field testing and perimeter design with over 188 peer-reviewed publications. Co-founder and Director of GLANCE Optical, where he co-developed MRF with A/Prof Kong.
Dr Jason Cheng
BSc, MBBS, FRCOphth, FRANZCO · Clinical Advisor
Fellowship-trained glaucoma specialist with over 15 years' experience. Managing Partner at Vision Eye Institute Hurstville and CBD Eye Clinic, with public appointments at Sydney Eye Hospital and Head of Department, Ophthalmology, at St George Hospital. Conjoint Senior Lecturer at UNSW and the University of Sydney. Board Director of Sight For All, Editorial Board of Eye Journal and Secretary of the Gateway Committee, Asia-Pacific Academy of Ophthalmology.
Acknowledgements
G-Screen is powered by Melbourne Rapid Fields (MRF), an FDA-cleared and TGA-registered web-based perimetry platform. Educational content is informed by published guidelines from Glaucoma Australia.
Sponsored by Glance Optical and Zoom Optics.
For partnerships, collaboration or feedback: