“The only feedback you’ll get is from your own work. It’s between you and the canvas.” Bridget Riley wasn’t concerned about anyone else’s thoughts when, in 1961, she dove into geometric abstraction. She played with perception through the exploration of shapes and patterns, restricting herself to black and white (she introduced color some years later). Riley’s career skyrocketed after her inclusion in the Museum of Modern Art’s 1965 exhibition “The Responsive Eye,” curated by William C. Seitz. Paintings from that vital era in her development are celebrated once again at Hazlitt Holland-Hibbert. —Henry McGrath