About the Authors

Ahmed Abdel-Hay

Roles Conceptualization, Formal analysis, Investigation, Writing – original draft, Writing – review & editing

ahmed.abdelhay@gmail.com

Affiliations Applied Vision Research Centre, City, University of London, London, United Kingdom, Musgrove Park Hospital, Taunton, United Kingdom

Sobha Sivaprasad

Roles Conceptualization, Supervision, Writing – review & editing

Affiliation Moorfields Eye Hospital, London, United Kingdom

Ahalya Subramanian

Roles Supervision, Writing – review & editing

Affiliation Applied Vision Research Centre, City, University of London, London, United Kingdom

John L. Barbur

Roles Supervision, Writing – review & editing

Affiliation Applied Vision Research Centre, City, University of London, London, United Kingdom

Competing Interests

We would also like to confirm that although Dr Barbur has no financial interests in the current study, he is the inventor of the CAD test used in this study and that he is a Director of City Occupational Ltd., the City University company that markets the test. There are no further patents, products in development or marketed products to declare. This does not alter our adherence to all the PLOS ONE policies on sharing data and materials, as detailed online in the guide for authors.