Monet painted "Water Lillies" in 1916 at the age of 76 while struggling with cataracts in his eyes. Around this time, he had developed cataracts, a disease that clouds the lens of the eyes, making it difficult to see objects clearly. Despite his vision problems, Monet continued painting scenes from his garden, which had become his preferred subject matter. There are over 24 paintings by Monet titled "Water Lillies" that depict his garden pond in different ways.