Adapting to blur produced by ocular high-order aberrations

摘要: The perceived focus of an image can be strongly biased by prior adaptation to a blurred or sharpened image. We examined whether these effects occur for the natural patterns retinal blur produced high-order aberrations (HOAs) in optics eye. Focus judgments were measured 4 subjects estimate forced choice procedure (sharp/blurred) their neutral point after different levels scaled increases decreases HOAs. optical was simulated convolution PSFs from HOA patterns, with Zernike coefficients (excluding tilt, defocus, and astigmatism) multiplied factor between 0 (diffraction limited) 2 (double amount blur). Observers viewed images through Adaptive Optics system that corrected made settings under gray field adapting 5 levels. All adapted changes level imposed regardless which observer’s used generate stimuli, proportional