Context
Refractive errors (myopia, hyperopia, astigmatism) affect billions of people worldwide. Recent work in computational displays suggests that pre-distorting images on screen can compensate for optical aberrations in the eye — potentially enabling lens-free correction.
Question
Can a computational display system pre-compensate images such that a viewer with a known refractive error perceives a sharp image without corrective lenses?
Method
Characterize the optical aberration using a point spread function model, compute the inverse deconvolution kernel, pre-distort displayed images, and validate perceptually using test patterns and subjective sharpness ratings.
Result
Prototype demonstrations show measurable improvement in perceived sharpness for low-to-moderate myopia. Performance degrades at higher corrections and is sensitive to viewing distance and head position.
Reflection
The gap between laboratory demonstration and practical product is enormous — but the underlying principle of using computation to replace optics is worth exploring.