About the Authors

Brendan T. Barrett

Affiliation Bradford School of Optometry & Vision Science, University of Bradford, Bradford, West Yorkshire, United Kingdom

Gurvinder K. Panesar

Affiliation Bradford School of Optometry & Vision Science, University of Bradford, Bradford, West Yorkshire, United Kingdom

Andrew J. Scally

Affiliation School of Health Studies, University of Bradford, Bradford, West Yorkshire, United Kingdom

Ian E. Pacey

i.pacey@bradford.ac.uk

Affiliation Bradford School of Optometry & Vision Science, University of Bradford, Bradford, West Yorkshire, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: BTB IEP GKP. Performed the experiments: BTB IEP GKP. Analyzed the data: BTB IEP GKP AJS. Contributed reagents/materials/analysis tools: AJS. Wrote the paper: BTB IEP GKP AJS.