There should be '...a lack of...' in the following sentence. Am I right?
They say the lenses are less permeable, and wearers more likely to suffer lack of oxygen in the cornea.
My feeling is that it is possible to leave out the article in your example sentence.
It certainly is possible in such expressions as:
The party was cancelled through lack of interest.
I found a thread in the dictionary.
The charges were dropped for lack of evidence.
He tricked his way into a job as a shoptial doctor and killed a patient throught lack of care.
[a] is optional in 'lack of' ?