Defining Metrics of Visual Acuity from Theoretical Models of Observers

Overview

Journal J Vis

Specialty Ophthalmology

Date 2024 Apr 16

PMID 38625087

Authors

Charles-Edouard Leroux

Conor Leahy

Justine Dupuis

Christophe Fontvieille

Fabrice Bardin

Affiliations

Soon will be listed here.

Abstract

Many experimental studies show that metrics of visual image quality can predict changes in visual acuity due to optical aberrations. Here we use statistical decision theory and Fourier optics formalism to demonstrate that two metrics known in the field of vision sciences are approximations of two different theoretical models of linear observers. The theory defines metrics of visual acuity to potentially predict changes in visual acuity due to optical aberrations, without needing a posteriori scale or offset. We illustrate our approach with experiments, using combinations of defocus and spherical aberration, and pure coma.

References

Tarrant J, Roorda A, Wildsoet C . Determining the accommodative response from wavefront aberrations. J Vis. 2010; 10(5):4. PMC: 3079559. DOI: 10.1167/10.5.4. View

Artal P, Chen L, Fernandez E, Singer B, Manzanera S, Williams D . Neural compensation for the eye's optical aberrations. J Vis. 2004; 4(4):281-7. DOI: 10.1167/4.4.4. View

Buhren J, Pesudovs K, Martin T, Strenger A, Yoon G, Kohnen T . Comparison of optical quality metrics to predict subjective quality of vision after laser in situ keratomileusis. J Cataract Refract Surg. 2009; 35(5):846-55. DOI: 10.1016/j.jcrs.2008.12.039. View

Myers K, Barrett H . Addition of a channel mechanism to the ideal-observer model. J Opt Soc Am A. 1987; 4(12):2447-57. DOI: 10.1364/josaa.4.002447. View

Martin J, Vasudevan B, Himebaugh N, Bradley A, Thibos L . Unbiased estimation of refractive state of aberrated eyes. Vision Res. 2011; 51(17):1932-40. PMC: 3196649. DOI: 10.1016/j.visres.2011.07.006. View

Lopez-Gil N, Martin J, Liu T, Bradley A, Diaz-Munoz D, Thibos L . Retinal image quality during accommodation. Ophthalmic Physiol Opt. 2013; 33(4):497-507. PMC: 3700370. DOI: 10.1111/opo.12075. View

Zheleznyak L, Sabesan R, Oh J, MacRae S, Yoon G . Modified monovision with spherical aberration to improve presbyopic through-focus visual performance. Invest Ophthalmol Vis Sci. 2013; 54(5):3157-65. PMC: 3645370. DOI: 10.1167/iovs.12-11050. View

Ravikumar A, Marsack J, Bedell H, Shi Y, Applegate R . Change in visual acuity is well correlated with change in image-quality metrics for both normal and keratoconic wavefront errors. J Vis. 2013; 13(13):28. PMC: 3842080. DOI: 10.1167/13.13.28. View

Sarver E, Applegate R . The importance of the phase transfer function to visual function and visual quality metrics. J Refract Surg. 2004; 20(5):S504-7. View

10.

Thibos L, Hong X, Bradley A, Applegate R . Accuracy and precision of objective refraction from wavefront aberrations. J Vis. 2004; 4(4):329-51. DOI: 10.1167/4.4.9. View

11.

Applegate R, Marsack J, Thibos L . Metrics of retinal image quality predict visual performance in eyes with 20/17 or better visual acuity. Optom Vis Sci. 2006; 83(9):635-40. PMC: 1764494. DOI: 10.1097/01.opx.0000232842.60932.af. View

12.

Watson A, Ahumada Jr A . A standard model for foveal detection of spatial contrast. J Vis. 2005; 5(9):717-40. DOI: 10.1167/5.9.6. View

13.

Buehren T, Collins M . Accommodation stimulus-response function and retinal image quality. Vision Res. 2005; 46(10):1633-45. DOI: 10.1016/j.visres.2005.06.009. View

14.

Majaj N, Pelli D, Kurshan P, Palomares M . The role of spatial frequency channels in letter identification. Vision Res. 2002; 42(9):1165-84. DOI: 10.1016/s0042-6989(02)00045-7. View

15.

Leroux C, Ouadi S, Leahy C, Marc I, Fontvieille C, Bardin F . Absolute prediction of relative changes in contrast sensitivity with aberrations using a single metric of retinal image quality. Biomed Opt Express. 2023; 14(7):3203-3212. PMC: 10368034. DOI: 10.1364/BOE.487217. View

16.

Sachs M, Nachmias J, Robson J . Spatial-frequency channels in human vision. J Opt Soc Am. 1971; 61(9):1176-86. DOI: 10.1364/josa.61.001176. View

17.

Nestares O, Navarro R, Antona B . Bayesian model of Snellen visual acuity. J Opt Soc Am A Opt Image Sci Vis. 2003; 20(7):1371-81. DOI: 10.1364/josaa.20.001371. View

18.

Geisler W . Contributions of ideal observer theory to vision research. Vision Res. 2010; 51(7):771-81. PMC: 3062724. DOI: 10.1016/j.visres.2010.09.027. View

19.

Dalimier E, Dainty C . Use of a customized vision model to analyze the effects of higher-order ocular aberrations and neural filtering on contrast threshold performance. J Opt Soc Am A Opt Image Sci Vis. 2008; 25(8):2078-87. DOI: 10.1364/josaa.25.002078. View

20.

Sawides L, De Gracia P, Dorronsoro C, Webster M, Marcos S . Adapting to blur produced by ocular high-order aberrations. J Vis. 2011; 11(7). PMC: 3244874. DOI: 10.1167/11.7.21. View