Trouble seeing after large drink? (12)

I believe the answer is:

doublevision

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'trouble' is the definition.
Both the answer and definition are singular nouns.
Perhaps you can see a link between them that I don't see?

'seeing after large drink?' is the wordplay.
'seeing' becomes 'vision'.
'after' is a charade indicator (letters next to each other).
'large drink?' becomes 'double' (drink with a double shot).
'vision' after 'double' is 'DOUBLEVISION'.

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I've seen this clue in The Daily Express.

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