BALABANOV JURIJ VLADIMIROVICH,Балабанов Юрий Владимирович,GRACHEV ALEKSEJ VLADIMIROVICH,Грачев Алексей Владимирович
申请号：
RU2014120760
公开号：
RU2573185C2
申请日:
2014.05.22
申请国别(地区):
RU
年份:
2016
代理人:
摘要：
FIELD: medicine.SUBSTANCE: look is fixed at luminous point. Test images in form of achromatic sinusoidal grid are shown on computer monitor screen. Test images are made in form of twenty equal squares, which are applied around point of look fixation with the total visual angle 50 degrees on the horizontal, with 20 degree inwards displacement from look fixation point and 30 degree outwards. Test images are shown with frequency in the range 22-30 Hz, increasing their contrast range from 0 to maximal. Time of response of perception by patient of direction of stripes in test image is fixed. If time of image recognition is higher than 10 seconds in one of 20 shown squares, or time exceeding 2.5 seconds in 8 of 20 shown squares, glaucoma is diagnosed. To realise the method device, containing patients monitor, doctors monitor, connected to control unit, photoelectric converter, isolated from external illumination, is used. Patients monitor is installed inside case on back wall. Photoelectric converter, connected with inlet of amplifier, output of which is connected with inlet of analogue-digital converter, output of which is connected with inlet of control unit, output of which is connected with patients monitor, is installed outside working field of monitor. Hole, in which patients ocular with collecting lens, is made on front panel of non-transparent case.EFFECT: inventions make it possible to increase reliability of diagnostics, which is achieved due to application of doubled spatial frequency in combination with threshold contrast.4 cl, 1 dwgГруппа изобретений относится к области медицины и медицинской техники, а именно к офтальмологии. Фиксируют взгляд на светящейся точке. Предъявляют тестовые изображения в виде ахроматической синусоидальной решетки на экране монитора компьютера. Тестовые изображения выполнены в виде двадцати равных квадратов, которые нанесены вокруг точки фиксации взгляда с общим углом зрения 50 градусов по горизонтали, со смещением от точки фикса
