Abstract

Major advances characterize the Generation-V dual-Purkinje-image (DPI) eyetracker compared with the Generation-III version previously described. These advances include a large reduction in size, major improvements in frequency response and noise level, automatic alignment to a subject, and automatic adjustment for different separation between the visual and optic axes, which can vary considerably from subject to subject. In a number of applications described in the paper, the eyetracker is coupled with other highly specialized optical devices. These applications include accurately stabilizing an image on a subject's retina; accurately simulating a visually dead retinal region (i.e., a scotoma) of arbitrary shape, size, and position; and, for clinical purposes, stabilizing the position of a laser coagulator beam on a patient's retina so that the point of contact is unaffected by the patient's own eye movements.

© 1985 Optical Society of America

Accurate three-dimensional eyetracker

H. D. Crane and C. M. Steele
Appl. Opt. 17(5) 691-705 (1978)

Intensified charge-coupled-device-based eyetracker and image stabilizer

Michael T. Milbocker and Gilbert T. Feke
Appl. Opt. 31(19) 3719-3729 (1992)

Accurate two-dimensional eye tracker using first and fourth Purkinje images

T. N. Cornsweet and H. D. Crane
J. Opt. Soc. Am. 63(8) 921-928 (1973)

Accurate simulation of visual scotomas in normal subjects

Hewitt D. Crane and D. H. Kelly
Appl. Opt. 22(12) 1802-1806 (1983)

Video-based eyetracking methods and algorithms in head-mounted displays

Hong Hua, Prasanna Krishnaswamy, and Jannick P. Rolland
Opt. Express 14(10) 4328-4350 (2006)