FDT-PERIMETER WITH TOPOGRAPHY OF DIAGNOSTIC STIMULI BASED ON RADIAL POLAR COORDINATE SYSTEM Russian patent published in 2024 - IPC A61B3/24 A61B3/113 

FIELD: medicine.

SUBSTANCE: invention relates to the field of medicine, in particular to ophthalmology, as well as to determine professional suitability, in particular sports, control of vehicles and complex systems, and is intended for research of differential light sensitivity of retina in different zones of visual field by FDT-perimetry method. Disclosed is a device for conducting FDT-perimetry with a topography of diagnostic stimuli based on a polar coordinate system, which contains interconnected stimulus generation unit and test procedure formation, a stimulus visualization unit and a feedback unit, wherein the unit for generating stimuli and generating a test procedure is configured to generate diagnostic stimuli and generate a topographic model of diagnostic stimuli based on a radial (polar) coordinate system, wherein diagnostic stimuli are made in form of curvilinear trapezoids and one round central diagnostic stimulus, wherein the diagnostic stimuli in the form of curvilinear trapezoids are filled with alternating dark and light strips representing arcs of concentric circles with a centre in the middle of the used radial (polar) coordinate system.

EFFECT: invention provides more reliable study of differential light sensitivity of the retina by FDT-perimetry, higher accuracy of detecting possible defects in the central visual field, which occur as a result of depression of retinal light sensitivity.

9 cl, 10 dwg