Sharpness metric for vision quality

Details Sharpness metric for vision quality Sharpness metric for vision quality

2006-07-18

2006-07-18

Bianco, Patricia (Department: 3735)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Methods of use

C351S200000, C351S205000, C351S211000, C351S221000, C351S222000

Reexamination Certificate

active

07077522

ABSTRACT:
A vision metric, called the sharpness metric, indicates the subjective sharpness of a patient's vision by taking into account both the wavefront aberration and the retinal response to the image. A retinal image quality function such as the point spread function is convolved by a neural quality function, and the maximum of the convolution over the retinal plane provides the sharpness metric. The sharpness metric can be used to control eye surgery or the fabrication of a lens.

REFERENCES:
patent: 6338559 (2002-01-01), Williams et al.
patent: 6511180 (2003-01-01), Guirao et al.
patent: 6634751 (2003-10-01), Turner et al.
patent: 6722767 (2004-04-01), Dick et al.
patent: 6761454 (2004-07-01), Lai et al.
Williams, D.R. Assessment of Optical Aberrrations of the Eye: Wavefront Sensing and Adaptive Optics., ARVO, Ft. Lauderdale, FL, May 2002.
Williams, D.R. Subjective Image Quality Metrics from the Wave Aberration. 4thInternational Congress of Wavefront Sensing and Aberration-Free Refractive Correction, San Francisco, CA, Feb. 16, 2003.
Williams, D.R. Predicting Subjective Image Quality from the Wave Aberration. ASCRS, San Francisco, CA, Apr. 12, 2003.

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