Weakness in view -- watch strap almost through
I believe the answer is:
eyestrain
'weakness in view' is the definition.
'eyestrain' can be an answer for 'weakness' (thesaurus). I am not sure about the 'in view' bit.
'watch strap almost through' is the wordplay.
'watch' becomes 'eye' (I've seen this before).
'almost' means to remove the last letter (most of the word but not all of it).
'through' becomes 'in'.
'strap' with its last letter taken away is 'stra'.
'eye'+'stra'+'in'='EYESTRAIN'
Can you help me to learn more?
(Other definitions for eyestrain that I've seen before include "Tension on the visual organ" , "Optic fatigue" , "Eat resiny mix to cause optical pressure" , "A serenity leading to ocular stress" , "Optical irritation or tiredness" .)