Yup.
He’s drugged up.
People have noted his flat, black eyes. He used to have blue eyes. So, I looked it up. Do a search online combining Alzheimer’s Disease and dilated pupils and see what you find. One article says research has shown that the harder the brain is trying to work, the larger the pupils in patients suffering senility. It also may be associated with the meds he’s taking.
Ophthalmologists can even study the pupil dilation to find early evidence of Alzheimer’s Disease. Biden’s flat dark eyes are betraying his condition and people are noticing it.