The phrase "allow the viewer to" is correct and usable in written English.
It can be used when discussing how something, such as a piece of art or a presentation, provides an opportunity for the viewer to engage or experience something.
Example: "The interactive exhibit allows the viewer to explore the history of the city through immersive displays."
Alternatives: "enable the viewer to" or "permit the viewer to".
They allow the viewer to own the TV schedule instead of being controlled by it.
Macy's displays along Broadway designed by Paul Olszewski, have thundering music and interactive features that allow the viewer to participate.
Some of his brick walls have oval windows that allow the viewer to look into adjoining garden rooms.
Some groupings harken to the original installation, while other images are placed in ways that allow the viewer to see them in contrast to paintings in adjoining galleries.
The artist intended the patterns to "allow the viewer to visualize the existence and environmental history of this tree," according to the wall plaque.
Notwithstanding the discipline of his format and his desire to allow the viewer to recognize the image, Mr. Close believes he has considerable freedom to experiment.
They define a moment in real time rather than the past and allow the viewer to meet the artist halfway in her world.
Essentially it's a stream of video clips uploaded by visitors to their site, with tags that allow the viewer to toggle from one 10-second clip to the next.
But the film never provides a conceptual framework that would allow the viewer to see this vendetta, the poisoning of the Gulf and the virtual enslavement of farm workers as meaningful instances of the same thing.
Cinematic visions of apocalypse, as Susan Sontag wrote in her 1965 essay "The Imagination of Disaster," allow the viewer to "participate in the fantasy of one's own death" and "the destruction of humanity itself".
Mr. Thaw said he was especially intrigued by works on paper because they allow the viewer to "observe the workings of an artist's mind more vividly" than in many highly finished paintings.
