Teaser 2804: Spots before the eyes

From The Sunday Times, 19th June 2016 [link]

At the opticians I was shown a sequence of six screens. On each there was a different number of spots ranging from 0 to 5 and I had to say how many I thought I could see. This was done with the left eye and then repeated with the right. The optician always used the same sequence and my answers were:

(5 2 3 4 4 3)
(4 1 4 5 2 3)

In each case I got two correct. When I asked if this was the worst he’d seen, the optician showed me these three earlier sets of answers in which just one was correct in each:

(2 2 1 2 1 4)
(3 3 2 3 5 1)
(0 4 5 1 3 2)

What was the correct sequence?

[teaser2804]