Narrow-minded (“having restricted or rigid views, and being unreceptive to new ideas”), small-minded (“Selfish, petty; constrained in thought, limited in scope of consideration, not mindful of the big picture”), and previously-mentioned close-minded (“unreceptive to new ideas or information; not open to any agreement”) are all relevant, as are some of their synonyms like hidebound (“Stubborn; narrow-minded; inflexible”) and previously-mentioned pigheaded (“Obstinate and stubborn to the point of stupidity”).

Also consider intolerant (“... close-minded about new or different ideas. indisposed to tolerate contrary opinions or beliefs; impatient of dissent or opposition; denying or refusing the right of private opinion or choice in others ...”) and illiberal (“narrow-minded; bigoted”).

Calling the person blinkered, meaning fitted with blinkers, which are “eye shields attached to a hood for horses, to prevent them from seeing backwards and partially sideways” or blindered would imply they can only see straight ahead, ie only what they are already looking at.

Some terms mentioned in previous ELU questions (1,2,3,4,5,6) are relevant. Links to wiktionary definitions are shown. • myopic, “narrow minded” • solipsist, “One who adheres to self-absorption and an ignorance of the views or needs of others” • self centered, “Of a person, egotistically obsessed with himself or herself” • uncooperative, ie not working well with others • ossified, lit., converted to bone, fig., inflexible and rigid in habits or opinions