The family of ClearChart® Digital Acuity Systems are all-in-one, elegant, and simple-to-use. They are uniquely designed to meet all of your acuity testing needs with a wide selection of optotypes and other special test charts. All of the ClearChart 4 models feature a 24-inch, high-resolution, LED-backlit display, and are lightweight, cool-running, and long-lasting.
 
Built for acuity testing
No moving fans or spinning hard drives
High resolution 24" LED backlit display with 3 illumination levels 
Wide range of optotypes
Direct or mirrored configuration
Easily import images and videos (4X and 4P)
Stereo testing (4P)