Cataracts affected Claude Monet and influenced the appearance of many of his later paintings.
Monet developed cataracts in both eyes, and his vision became increasingly clouded, especially during the 1910s. Cataracts can alter color perception and reduce sharpness, making scenes appear hazier and more reddish or yellowish.
Monet underwent surgery on his right eye in 1923. He was dissatisfied with some effects of the operation and sometimes used specially tinted glasses. Scholars and museum visitors often connect the increasingly intense reds and blurred forms in his late paintings with his changing eyesight, although his artistic choices and revisions also played important roles.