The RAIB also said it appeared that Mr Mackay was not wearing spectacles to improve his distance vision as he was advised at eyesight examinations in 2006 and 2009.

BBC: Eyesight 'a cause' in fatal crash at level crossing

However, the RAIB also said Mr MacKay may not have seen, or had misinterpreted, the warning lights at the level crossing and appeared not to have been wearing glasses to improve his distance vision.

BBC: Angus and Margaret MacKay

We were walking on the recently created Abraham Path, Turkey's newest trekking route and the northernmost section of an ambitious vision begun in 2008 to create a long-distance trail through the Middle East based on the journey of the Prophet Abraham.

BBC: Echoes of an ancient land along Turkey's Abraham Path

The plug-in provides vision detection by automatically coordinating the camera and ball position, distance, orientation and more.

ENGADGET: Orbotix launches new Sphero AR tools to get the ball rolling on development

And so for many years that vision, that dream I think seemed very far off in the distance.

WHITEHOUSE: President Obama at the APEC Business Summit