RT Journal Article
T1 Phenomenological model of visual acuity
A1 Gómez Pedrero, José Antonio
A1 Alonso Fernández, José
AB We propose in this work a model for describing visual acuity (VV) as a function of defocus and pupil diameter. Although the model is mainly based on geometrical optics, it also incorporates nongeometrical effects phenomenologically. Compared to similar visual acuity models, the proposed one considers the effect of astigmatism and the variability of best corrected VV among individuals; it also takes into account the accommodation and the “tolerance to defocus,” the latter through a phenomenological parameter. We have fitted the model to the VV data provided in the works of Holladay et al. and Peters, showing the ability of this model to accurately describe the variation of VV against blur and pupil diameter. We have also performed a comparison between the proposed model and others previously published in the literature. The model is mainly intended for use in the design of ophthalmic compensations, but it can also be useful in other fields such as visual ergonomics, design of visual tests, and optical instrumentation.
PB SPIE
SN 1083-3668
YR 2016
FD 2016-12-14
LK https://hdl.handle.net/20.500.14352/17575
UL https://hdl.handle.net/20.500.14352/17575
LA eng
NO Received July 14, 2016; Accepted November 17, 2016; published online Dec. 14, 2016
NO Ministerio de Economía y Competitividad de España (MINECO)
DS Docta Complutense
RD 18 abr 2025