It is not necessary to repeat wudoo' if it has not been broken

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Check below answers in case you are looking for other related questions:
Does the presence of oil, ink or secretions of the eye affect tahaarah (purification)?
There is some kind of crusty scab on his eye – what effect does that have on his wudoo’?

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Related Answers:
Is wudoo’ invalidated by touching a woman?
Wiping the ears in wudoo'
Is it mustahabb for the woman to do wudoo’ before having intercourse a second time, as it is the man?
Does the presence of oil, ink or secretions of the eye affect tahaarah (purification)?
There is some kind of crusty scab on his eye – what effect does that have on his wudoo’?

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