Method of determining the perimeter of the visual field of the h

Details Method of determining the perimeter of the visual field of the h Method of determining the perimeter of the visual field of the h

1996-08-26

1999-01-26

Mai, Huy

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Methods of use

351224, A61B 300

Patent

active

058643850

ABSTRACT:
A multiplicity of test sites determined by coordinates are stipulated in the visual field. This is done in such a way that at least one further test site is present within a specific circle around each test site and a stimulus is applied only once at each test site. A value for the stimulus is stipulated and recorded for each test site. The first stimulus of a series of stimuli forming an examination is applied at any desired test site using the stimulus. For this test site and the test sites located within its circle, the stimulus value is corrected according to a mathematical function corresponding to the patient response towards the threshold value, and these are recorded as corrected stimuli. The second stimulus and the following stimuli which are applied at the other test sites in any desired sequence have the stimulus value or the corrected stimulus value recorded for the respective test site.

REFERENCES:
patent: 5412561 (1995-05-01), Rosenshein et al.

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