Tracey Technologies develops, manufactures and markets vision analysis and diagnostic equipment, including wavefront aberrometrers, for ophthalmologists, optometrists and other eye care professionals. Practitioners use the aberration information provided by the Tracey devices to test and treat their patients'​ vision. Tracey Technologies holds the patent to a highly advanced technology called ray tracing aberrometry. With ray tracing, the Tracey iTrace dynamically measures and analyzes wavefront aberrometry, or the focusing power of the human eye.