Perimeter and a method for operating a perimeter

Details Perimeter and a method for operating a perimeter Perimeter and a method for operating a perimeter

2008-05-06

2008-05-06

Mai, Huy K (Department: 2873)

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Subjective type

C351S223000, C351S237000

Reexamination Certificate

active

11352042

ABSTRACT:
The invention relates to a perimeter and a method for operating a perimeter during a field of vision examination, whereby light stimuli in the field of vision of the person to be tested are presented on an observational surface during the examination process. At least one moving light stimulus is presented to the eye during an examination process with a time offset and then at least one non-moving light stimulus or conversely is presented on the observational surface.

REFERENCES:
patent: 4429961 (1984-02-01), Sheingorn
patent: 4634243 (1987-01-01), Massof et al.
patent: 5036500 (1991-07-01), Ganter
patent: 31 43 880 (1982-09-01), None
patent: 37 31 415 (1989-04-01), None
patent: 689 27 478 (1989-08-01), None
Carl Zeiss Meditec AG, Projektionsperimeter HFA II-i. Präzision und Zeitgewinn.(brochure), pp. 1-6, Deutschland May 2003.

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