Abstract

An adaptive optics vision simulator was used to measure the role of ocular aberrations in the photopic foveal spatial summation curve for three young subjects. After the correction of the ocular aberrations over a 6 mm pupil, the increment luminance threshold was lowered for small stimuli and the estimated area of complete summation (Ricco’s area) was reduced by a factor of 2.6 on average. These results show that the image spread due to natural ocular aberrations partly accounts for the spatial summation observed in the fovea in the photopic light regime.

© 2010 Optical Society of America

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References

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2008 (3)

K. M. Hampson, J. Mod. Opt. 55, 3425 (2008).
[CrossRef]

E. Dalimier, C. Dainty, and J. L. Barbur, J. Mod. Opt. 55, 791 (2008).
[CrossRef]

E. Logean, E. Dalimier, and C. Dainty, Opt. Eng. 16, 17348 (2008).

2002 (1)

2000 (1)

1998 (1)

1997 (1)

1991 (1)

K. D. Davila and W. S. Geisler, Vision Res. 31, 1369 (1991).
[CrossRef] [PubMed]

1990 (1)

1970 (1)

M. E. Wilson, J. Physiol. (London) 207, 611 (1970).

1969 (1)

J. P. Chandler, Behav. Sci. 14, 81 (1969).

1965 (1)

V. D. Glezer, Vision Res. 5, 497 (1965).
[CrossRef] [PubMed]

1958 (1)

H. B. Barlow, J. Physiol. (London) 141, 337 (1958).

1877 (1)

A. Ricco, Mem. R. Accad. Sci. Lett. Arti Modena 17, 47 (1877).

Artal, P.

Barbur, J. L.

E. Dalimier, C. Dainty, and J. L. Barbur, J. Mod. Opt. 55, 791 (2008).
[CrossRef]

Barlow, H. B.

H. B. Barlow, J. Physiol. (London) 141, 337 (1958).

Bieber, M. L.

Bradley, A.

Chandler, J. P.

J. P. Chandler, Behav. Sci. 14, 81 (1969).

Cheng, X.

Dainty, C.

E. Dalimier, C. Dainty, and J. L. Barbur, J. Mod. Opt. 55, 791 (2008).
[CrossRef]

E. Logean, E. Dalimier, and C. Dainty, Opt. Eng. 16, 17348 (2008).

Dalimier, E.

E. Logean, E. Dalimier, and C. Dainty, Opt. Eng. 16, 17348 (2008).

E. Dalimier, C. Dainty, and J. L. Barbur, J. Mod. Opt. 55, 791 (2008).
[CrossRef]

Davila, K. D.

K. D. Davila and W. S. Geisler, Vision Res. 31, 1369 (1991).
[CrossRef] [PubMed]

Geisler, W. S.

K. D. Davila and W. S. Geisler, Vision Res. 31, 1369 (1991).
[CrossRef] [PubMed]

Glezer, V. D.

V. D. Glezer, Vision Res. 5, 497 (1965).
[CrossRef] [PubMed]

Hampson, K. M.

K. M. Hampson, J. Mod. Opt. 55, 3425 (2008).
[CrossRef]

Hong, X.

Liang, J.

Logean, E.

E. Logean, E. Dalimier, and C. Dainty, Opt. Eng. 16, 17348 (2008).

McLean, R.

Miller, D. T.

Ricco, A.

A. Ricco, Mem. R. Accad. Sci. Lett. Arti Modena 17, 47 (1877).

Schefrin, B. E.

Shrago, E. E.

Thibos, L. N.

Volbrecht, V. J.

Werner, J. S.

Williams, D. R.

Wilson, M. E.

M. E. Wilson, J. Physiol. (London) 207, 611 (1970).

Behav. Sci. (1)

J. P. Chandler, Behav. Sci. 14, 81 (1969).

J. Mod. Opt. (2)

K. M. Hampson, J. Mod. Opt. 55, 3425 (2008).
[CrossRef]

E. Dalimier, C. Dainty, and J. L. Barbur, J. Mod. Opt. 55, 791 (2008).
[CrossRef]

J. Opt. Soc. Am. A (5)

J. Physiol. (London) (2)

H. B. Barlow, J. Physiol. (London) 141, 337 (1958).

M. E. Wilson, J. Physiol. (London) 207, 611 (1970).

Mem. R. Accad. Sci. Lett. Arti Modena (1)

A. Ricco, Mem. R. Accad. Sci. Lett. Arti Modena 17, 47 (1877).

Opt. Eng. (1)

E. Logean, E. Dalimier, and C. Dainty, Opt. Eng. 16, 17348 (2008).

Vision Res. (2)

V. D. Glezer, Vision Res. 5, 497 (1965).
[CrossRef] [PubMed]

K. D. Davila and W. S. Geisler, Vision Res. 31, 1369 (1991).
[CrossRef] [PubMed]

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Figures (2)

Fig. 1
Fig. 1

Appearance of the stimulus in the two possible positions.

Fig. 2
Fig. 2

Relative intensity increment threshold measured as a function of stimulus area. The (blue) circles represent data points without AO correction of ocular aberrations; the dashed (blue) line is the bilinear fit to the data. The (red) squares represent data points with AO correction; the dotted (red) line is the bilinear fit to the data.

Tables (2)

Tables Icon

Table 1 Average and Standard Deviation rms Wavefront Error of the Three Eyes Measured without and with AO Correction and Given in Micrometers

Tables Icon

Table 2 Estimated Ricco’s Area

Metrics