He elaborates on that but you can replace "seeing" with "perceiving" -- it would be a little easier to understand what Berger means, imo.
Berger’s way of ‘seeing’ is to situate yourself in the time and place, less ocular than you may assume. And then he wrote the touching Cataracts, about how he lost his vision and gained a new way to see. He regained his vision and soon died. Possibly this is why you’ve been downvoted.
If that's true then the down votes themselves are beautifully and ironically tone def in regards to Berger's advocacy of awareness of context and medium in which the viewer is interpreting the content.
So you're just here to tone police
I think Berger is. I also think it's wrong and ridiculous.