Abstract

When vision through an optical aid is being considered it is desirable to know something of the effect of the optical quality of the aid on performance. Methods of image evaluation are discussed with particular reference to visual aids. All major methods of image evaluation are distinctly limited in predictive capability when the human observer is the final element in the chain. A model of visual performance is presented that has predictive capabilities over a wide range of situations, when used in conjunction with objective performance data relating to visual aids and the optics of the eye.

© 1973 Optical Society of America

Report on Survey of Optical Aids for Subnormal Vision*

V. J. Ellerbrock
J. Opt. Soc. Am. 36(12) 679-695 (1946)

Image-detector model and parameters of the human visual system*

Alvin D. Schnitzler
J. Opt. Soc. Am. 63(11) 1357-1368 (1973)

Modulation transfer functions and contrast sensitivity through low vision telescopes

Milton Katz, Dean Yager, Alan Lewis, Karl Citek, Nivian Sanchez, and Aries Arditi
Appl. Opt. 28(6) 1103-1109 (1989)

Modulation transfer functions of low-vision aids: comparison with spatial-frequency requirements in low vision

Susan J. Leat and Nicholas J. Rumney
Appl. Opt. 31(19) 3637-3645 (1992)

Contribution of the crystalline lens to the spherical aberration of the eye

Sami G. El Hage and Françoise Berny
J. Opt. Soc. Am. 63(2) 205-211 (1973)