Patent · US Active

System and method for testing retinal function

US7918558B1 · kind B1 · utility

8Cited by

3References

41Claims

0Family size

Assignee

Preventive Ophthalmics · US

Inventors

Jerome A. Legerton · San Diego, US
Akos Feher · El Segundo, US
Janos Feher · Fara in Sabina, IT

Key dates

Filing date	Jul 22, 2010
Grant date	Apr 5, 2011
Priority date	—
Expiry date	Jul 22, 2030

Classification

Technology area (CPC A)Human Necessities
CPC primaryA61B3/113
WIPO fieldMedical technology
WIPO sectorInstruments

Abstract

A method of measuring retinal or visual pathway function comprises stimulating optokinetic nystagmus by presenting a visual stimulus to a patient; modifying a first parameter of the visual stimulus; modifying a second parameter of the visual stimulus; and using the modified visual stimulus to determine a threshold stimulus for optokinetic nystagmus; wherein the first and second parameters are selected from a group of parameters comprising a pattern for the visual stimulus, a width of the visual stimulus, a distance between the visual stimulus and the patient, a spatial frequency of the visual stimulus, a rate of change or temporal frequency of the test face of the visual stimulus, and a contrast between elements of the visual stimulus.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.