Pre-compensation

A technique in which images displayed on a computer screen are mathematically modified in advance to counteract the visual aberrations of the viewer's eye. Rather than relying on corrective lenses or magnification, pre-compensation transforms the source image so that when it passes through an aberrated optical system (such as an eye with refractive errors), the resulting retinal image is clearer than it would otherwise be. This approach represents a display-level accessibility intervention that could benefit users with specific types of low vision.