| 摘要 |
FIELD: medicine. SUBSTANCE: method involves showing test objects and recording visual invoked potentials with first showing the test objects arranged as a set of black-and-white vertical strips having longitudinal axis inclined to horizontal axis and coincides with strong meridian direction of the eye affected with myopic astigmatism and having rectangular illumination intensity profile with reversion frequency distributed in time within the limits of 2-4 Hz during 2-6 min with main positive peak P100, maximum amplitude measurement following. Then, test objects arranged as a set of black-and-white horizontal strips having longitudinal axis in perpendicular relation to strong meridian direction of the eye affected with myopic astigmatism and having rectangular illumination intensity profile with reversion frequency distributed in time within the limits of 2-4 Hz during 2-6 min with main positive peak P100, maximum amplitude measurement following. Then, ratio of the main positive peak P100 maximum amplitude in the cases of the first test shown to the main positive peak P100 maximum amplitude value received when showing the second test. The ratio value being greater than 1.3, meridional amblyopia with myopic astigmatism is to be diagnosed in children. EFFECT: high accuracy of diagnosis. 4 dwg |
