An eye chart is probably the most recognizable item in an eye doctor's office. However, today's eye charts are more than just a printed image hung on a wall — some can be projected in a wide size for fast and efficient testing, while others are presented on an LCD screen in a variety of type sizes and contrast sensitivities to help meet the needs of different patient groups. Additionally, eye chart projectors and screens gives practitioners access to a number of different chart types all in one device.