This humorous black t-shirt features a funny take on the Ishihara color vision test. It displays a series of colorful, dotted circles with corresponding text labels. The text reads: If you can't see the number, you need to Drink Water, Sleep, Shower, Eat, or Travel to Asia. The shirt's design is printed across the chest. This unique shirt is perfect for eye doctors, people with a good sense of humor, or anyone who appreciates a clever design. Great for casual wear and sparking conversations.