She was asked about that incident yesterday.
From the Sun:
Presidential hopeful Hillary Clinton has ruled out taking a brain test during a TV interview about the elevated risk of dementia among older people.
The under-fire Democrat said "there’s no need for that" when she was being grilled about having a check by ABC anchor Sarina Fazan during an interview in Orlando.
The calls for a test came after a bizarre video was posted on the internet showing Clinton looking ‘cock-eyed’. Doctors say eye problems can be an early sign of a degenerative disease.
Clinton, 68, at first joked when asked if she would take "some neurocognitive test" given the elevated risks for degenerative disease because of her age.