DUBAI (Reuters) - The United Arab Emirates will extend its “golden” visa system - which grants 10-year residency in the Gulf state - to certain professionals, specialised degree-holders and others, the UAE’s vice president said on Sunday. Foreigners in the UAE usually have renewable visas valid for only a few years tied to employment. The government in the past couple of years has made its visa policy more flexible, offering longer residencies for certain types of investors, students and professionals.All holders of doctorate degrees, medical doctors and also computer, electronics, programming, electrical and biotechnology engineers are eligible, UAE Vice President and the ruler of Dubai Sheikh Mohammed bin Rashid al-Maktoum said in a statement. Also eligible are those with specialised degrees in artificial intelligence, big data and epidemiology, as well as high school students living in the UAE who rank top in the country and students from certain universities with a GPA of 3.8 or higher.