A nightdress seen poorly with this? (4-11)

I believe the answer is:

near-sightedness

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'this?' is the definition.
The definition suggests a singular noun which matches the answer.

'a nightdress seen poorly' is the wordplay.
'poorly' indicates an anagram (a poor spelling).
'a'+'nightdress'+'seen'='anightdressseen'
'anightdressseen' is an anagram of 'NEAR-SIGHTEDNESS'.

'with' is the link.

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I've seen this clue in The Times.

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