The Eye Chart Coffee Mug is the perfect test to make sure you're awake enough to start your day! Before you head out to school or work use the 15 ounce eye chart mug to recalibrate your system. Take a few sips and stare at the eye chart. If you can see all of the letters clearly then you're good to go. Bonus points are available if you decipher the hidden message. Spoiler Alert: Mug reads OMG I am so sleepy I can't even read what this says. Start your day off with a drink and a smile with this hilarious eye chart mug!