As an international visa holder, will the UK leaving the EU impact on my visa?

It is unlikely that the result of the EU Referendum will affect those who currently hold valid visas to study or remain in the UK. Usually changes to the law occur after the event and do not apply to decisions or circumstances retrospectively. If any future changes were to occur, then this would happen after a minimum period of 2 years after a vote to leave. During that time the UK would continue to implement EU treaties and laws and negotiate terms for the future.