Is there any verb for "keeping someone from seeing something"?

Example:

His realistic view keeps him from seeing the significance of human right considerations.

Is there any verb to be used instead of "keeps him from seeing" in the above sentence?

Solution 1:

Blinkering can stand for “keeping someone from seeing something”.

ODO:

blinker VERB

[WITH OBJECT]

1.1 Cause (someone) to have a narrow or limited outlook on a situation:
‘university education blinkers researchers so that they see poverty in terms of their own specialization’

‘A quarter-century of industrial thinking originating from Europe and North America continues to blinker us from this reality.’

Solution 2:

His realism-based views blinded him to the importance of respecting of human rights.

Alternately:

He was blinded by his realism-based views, and could not understand the importance of respecting human rights.

He was blind to the importance of respecting human rights.

He was blinded by his realism-based views.

In usage, to be "blinded to" and / or "blinded by" can each specify the cause and the object of selective understanding or perception, or they can focus only on the cause or only on the object.

A highly related proverb is "There are none so blind as those who will not see." Unlike "blinded by" and more like "blind to" it can indicate innate, intentional, or willful ignorance, as might be implied by "He was blind to human rights."

Solution 3:

How about obscure (as suggested by 1006a) or mask?

M-W:

obscure: to make dark, dim, or indistinct; to conceal or hide by or as if by covering

mask: to cover up

Your example:

His realistic view obscures the significance of human right considerations.

His realistic view masks the significance of human right considerations.