| OPART | "Perceptual abstraction" |
| OPART | 20th century art movement of optical illusions |
| OPART | 60's poster genre |
| OPART | 60's style painting |
| OPART | 60's-70's gallery hangings |
| OPART | Abstract painting |
| OPART | Abstract painting style of the '60s |
| OPART | Abstract visual images |
| OPART | Abstract visual imagesDunderhead |
| OPART | Abstractionism |
| OPART | Albers's "Homage to the Square," e.g. |
| OPART | Bedazzling museum works |
| OPART | Bridget Riley genre |
| OPART | Bridget Riley's "Blaze 4," e.g. |
| OPART | Bridget Riley's "Movement in Squares," e.g. |
| OPART | Bridget Riley's genre |
| OPART | Bridget Riley's paintings |
| OPART | Certain abstract paintings |
| OPART | Cultural phenomenon of the '60s |
| OPART | Dazzling designs |
| OPART | Dazzling gallery display |
| OPART | Dazzling posters |
| OPART | Dazzling style |
| OPART | Dizzying designs |
| OPART | Dizzying designs: 2 wds. |
| OPART | Dizzying drawings |
| OPART | Dizzying hangings |
| OPART | Dizzying illusions |
| OPART | Dizzying museum display |
| OPART | Dizzying paintings |
| OPART | Dizzying paintings, briefly: 2 wds. |
| OPART | Dizzying pictures |
| OPART | Dizzying posters |
| OPART | Dizzying visuals |
| OPART | Dizzy-making drawings |
| OPART | Drawings that deceive |
| OPART | Eye dazzlers |
| OPART | Eye twisters |
| OPART | Eyeball bender |
| OPART | Eyeball benders |
| OPART | Eyeball-bending display |
| OPART | Eyeball-bending drawings |
| OPART | Eyeball-bending paintings |
| OPART | Eyeball-bending pictures |
| OPART | Eyeball-bending pictures (2 wds.) |
| OPART | Eyeball-bending works |
| OPART | Eye-bending designs |
| OPART | Eye-bending genre |
| OPART | Eye-bending paintings |
| OPART | Eye-bending pictures |
| OPART | Eye-boggling designs |
| OPART | Eye-boggling prints |
| OPART | Eye-boggling work |
| OPART | Eye-catching designs |
| OPART | Eye-catching display |
| OPART | Eye-catching works |
| OPART | Eye-cue tests? |
| OPART | Eye-deceiving designs |
| OPART | Eye-fooling canvases |
| OPART | Eye-fooling genre |
| OPART | Eye-fooling works |
| OPART | Eye-grabbing canvases |
| OPART | Eye-grabbing gallery display |
| OPART | Eye-grabbing genre associated with Victor Vasarely |
| OPART | Eye-popping canvases |
| OPART | Eye-popping pictures |
| OPART | Eye-popping prints |
| OPART | Eye-straining exhibit |
| OPART | Eye-teasing paintings |
| OPART | Eye-tricking creativity |
| OPART | Eye-tricking gallery works |
| OPART | Eye-tricking works |
| OPART | Eye-twisting display |
| OPART | Focus of the 1965 exhibition “The Responsive Eye” |
| OPART | Gallery displays |
| OPART | Genre for Bridget Riley's "Shadow Play" |
| OPART | Genre for pieces with a sense of motion, for short |
| OPART | Genre of Vasarely's "Zebra" |
| OPART | Good genre for a maze maker |
| OPART | Illusionary abstractions |
| OPART | Illusionary paintings |
| OPART | Illusionary works |
| OPART | Illusionist paintings (2 wds.) |
| OPART | Illusionistic style |
| OPART | Illusion-based genre |
| OPART | Illusion-based painting style |
| OPART | Illusion-based visual style |
| OPART | Illusion-creating works |
| OPART | Illusory illustration |
| OPART | Illusory pictures |
| OPART | Illusory works |
| OPART | Images that give the illusion of movement |
| OPART | Images with illusions: 2 wds. |
| OPART | Influential style of the 1960s |
| OPART | It can make you dizzy |
| OPART | It's an illusion! |
| OPART | It's bedazzling |
| OPART | It's eye-catching |
| OPART | It's eye-grabbing |
| OPART | Like Victor Vasarely's 1975 acrylic on canvas painting "Vonal-Stri" |
| OPART | Looking at it a long time might make your head hurt |
| OPART | Magic Eye images, e.g. |
| OPART | Mesmerizing designs |
| OPART | Mesmerizing painting style |
| OPART | Mesmerizing work, for short |
| OPART | Mind-boggling designs |
| OPART | Modern designs |
| OPART | Modern museum display |
| OPART | Motion pictures? |
| OPART | Movement that inspired '60s fashion |
| OPART | Moving image? |
| OPART | Moving images, apparently |
| OPART | Moving picture, seemingly |
| OPART | Moving pictures, seemingly |
| OPART | Museum pieces you might find to be moving? |
| OPART | Outgrowth of geometrical abstraction |
| OPART | Painting style |
| OPART | Pictures that can make you dizzy |
| OPART | Pictures that may be difficult to focus on |
| OPART | Pictures that may make you dizzy |
| OPART | Reality-bending paintings |
| OPART | Some 60's museum exhibits |
| OPART | Some 60's paintings |
| OPART | Some Carlos Cruz-Diez works |
| OPART | Some MoMA works |
| OPART | Some dazzling designs |
| OPART | Some deceptive designs |
| OPART | Some deceptive drawings |
| OPART | Some eyeball benders |
| OPART | Some modern museum designs |
| OPART | Some psychedelic decoration |
| OPART | Some psychedelic designs |
| OPART | Specialty of painter Julian Stanczak |
| OPART | Squiggles and such |
| OPART | Style of Bridget Riley paintings |
| OPART | Style of abstract art associated with Kenneth Noland and Bridget Riley |
| OPART | Style of abstractionism |
| OPART | Style of some eye-catching pictures |
| OPART | Style pioneered by Josef Albers |
| OPART | Style with illusory motion |
| OPART | Subject of a pioneering 1965 MoMA show |
| OPART | Swirls and such |
| OPART | Swirly posters |
| OPART | Swirly prints |
| OPART | Tricky genre |
| OPART | Trippy visual designs, for short |
| OPART | Vasarely's genre |
| OPART | Victor Vasarely's movement |
| OPART | Visual illusion genre |
| OPART | Visual illusions |
| OPART | Visual movement popularized in the 1960s |
| OPART | Visual works that create illusions |
| OPART | Visually stimulating images |
| OPART | Visually stimulating painting (2 wds.) |
| OPART | Visually teasing images |
| OPART | Work that gives the illusion of movement |
| OPART | Work with wavy lines, maybe |
| OPART | Works that use visual illusions |
| OPART | Works to make you dizzy |
| OPART | Works with afterimages |
| OPART | Works with dizzying effects |
| OPART | Works with visual effects |