The Queen unveiled a plaque at the new Tenovus laboroatories

Showing no sign of nerves Emily, who has Down's Syndrome, jumped out of her chair and raced up to the Queen with a posy of flowers when she entered the clinic.

Emily has to have regular eye tests at the clinic and she showed the Queen how they were carried out.

As the Royal visitor left the room Emily stopped the Queen in her tracks by shouting, "Bye, Queen, bye."

The Queen also unveiled a plaque to open the new Tenovus Laboratories at the School of Pharmacy.

She met 90-year-old Eddie Price one of the founder members of Tenovus, a cancer charity he and nine friends set up in Cardiff 55 years ago.

Later the Queen also opened the new School of Social Sciences at a ceremony in the Glamorgan Building Council Chamber.

The Queen visited Cardiff University

On her final engagement of the day the Queen opened a new technology department at Fitzalan High School in Cardiff

The school has strong multi-cultural links with pupils from 30 nations speaking 22 different languages and on her arrival the Queen was greeted in several of those different languages, including Welsh.

Headteacher Angus Dunphy said: "We have dragged this school up by the bootlaces. Before there used to be around 12 pupils going on to further education, now the total is around 30."

"Today was about celebrating that success," he added.

"It is important considering the debate that is currently going on about social exclusion at universities."

"Everybody should be treated the same."