Researchers found a 20% improvement in progression to advanced AMD with the replacement, said Emily Chew, deputy director of epidemiology and clinical application for the National Eye Institute, a branch of the National Institutes of Health.

WSJ: The Crucial Years for Protecting Your Eye Health

But despite the promise of expansion Dr Hawkins acknowledged that Hawk-Eye's application in football is limited, and that the company would continue to develop its presence in other sports, both as a tool of adjudication and analysis.

BBC: Hawk-Eye's inventor eyes football expansion

Starz is definitely keeping an eye on this promotion, focusing on return visitors and overall impressions of the different parts of the application.

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