People who wear glasses for shortsightedness don't match the stereotype of being a geek or nerd, Australian researchers said.

"We have literally busted the myth that people who wear glasses are introverted or have particular personality characteristics. They are more likely to be agreeable and open, rather than closed and introverted," said Paul Baird of the University of Melbourne's Centre for Eye Research Australia.

The study looked at 633 twins and 278 other family members for four years. Their personalities were judged by psychologists for openness, conscientiousness, extroversion, agreeableness and neuroticism.

People with myopia were no more likely to be introverted, though researchers did see a little more likeliness to be agreeable, they said.

"Good eye care is really important, but unfortunately there are not always good associations with wearing glasses," said Baird. "This shows that people, particularly children, should not avoid or delay wearing glasses due to preconceived ideas about what it would imply about their personalities."