Developed with a faster refresh rate allowing for longer reading sessions and reduced eye strain, the Aladdin Pro 75 uses proven Aladdin technology helping individuals who may observe screen flicker when relying on peripheral vision for reading. The Pro 75 can display your printed materials in high-contrast black text on a white background and white text on a black background. The user can also display vertical or horizontal line markers and shadow mask to help track text and reduce glare.