| 摘要 |
FIELD: medicine. ^ SUBSTANCE: method involves examining retina light sensitivity degree using computer-aided perimetry approach within 60° bandwidth from fixation point. Direct orbital muscle thickness and retrobulbar space volume is additionally determined by applying ultrasonic b-scanning method. Linear blood circulation speed and resistance index are also determined in the central retinal artery and posterior short ciliary arteries. Macular or general light sensitivity reduction 25% and more relative to age-specific norm being observed together with 50% growth and more in direct orbital muscle thickness, retrobulbar space volume growth by more than 35% in combination with linear blood circulation speed reduction in the central retinal artery and posterior short ciliary arteries by 40% and more and increasing resistance index by 20% and more relative to physiologic norm, optic nerve abnormality is diagnosed at early disease stages. ^ EFFECT: high reliability of diagnosis. ^ 2 tbl |
