METHOD OF TREATING CENTRAL VENOUS BRANCH VEIN THROMBOSIS COMPLICATED BY MACULAR EDEMA, WITH INDIVIDUAL SELECTION OF PARAMETERS OF MICROIMPULSE MODE ON NAVIGATION LASER INSTALLATION NAVILAS 577s
Federalnoe gosudarstvennoe avtonomnoe uchrezhdenie "Natsionalnyj meditsinskij issledovatelskij tsentr "Mezhotraslevoj nauchno-tekhnicheskij kompleks "Mikrokhirurgiya glaza" imeni akademika S.N. Fedoro
发明人:
Volodin Pavel Lvovich (RU),Володин Павел Львович (RU),Ivanova Elena Vladimirovna (RU),Иванова Елена Владимировна (RU),Kukharskaya Yuliya Igorevna (RU),Кухарская Юлия Игоревна (RU)
申请号：
RU2018142620
公开号：
RU0002704705C1
申请日:
2018.12.04
申请国别(地区):
RU
年份:
2019
代理人:
摘要：
FIELD: medicine.SUBSTANCE: invention relates to medicine, specifically to ophthalmology. For treatment of central venous branch (CVB) thrombosis complicated by macular edema laser retinal coagulation is performed. Preliminary optical coherence tomography (OCT), including angio-mode, and fluorescent angiography (FAG) for determining the region of edema, followed by a color photograph of an eye ground on a navigation laser unit (NLU) Navilas 577s using software to superimpose and compare digital images of OCT and/or FAG with a color photograph of the eye ground. If the edema is localized and spread from the region of vascular arcades to the foveal avascular zone (FAZ), laser coagulation is performed, for this purpose, patterns are selected in software of NLU Navilas 577s and placed on a matched eyeball with OCT and/or FAG data in staggered order at distance of 2–3 diameters from each other, completely covering the edema zone – in the presence of an edema in the area of vascular arcades with pre-macular zone distribution, the following parameters are selected: spot diameter – 100, 200 mcm, exposition – 0.05–0.1 s, power – 80–300 mW. In the presence of edema in the macular area, excluding the avascular region, the following parameters are selected: spot diameter – 50, 100 mcm, exposition – 0.01–0.05 s, power – 50–150 mWt. In the presence of the edema in the FAZ, the treatment is carried out in a selective microimpulsive mode, a pattern of several applicants is selected closely to each other and placed on a matched eyeball photo with OCT and/or FAG data, completely covering the edema area. To determine individual energy parameters required for treatment, micro-pulse mode parameters are calculated, which are calculated by Navilas 577s computer simulation at NLU: microimpulse duration – 50–150 mcs, pulse interval – 2,000 mcs, packet duration – 10–30 ms, number of pulses in packet – 5–15, spot diameter – 100 mcm, power – 0.4–1.9 Wt, length waves – 577 nm, then each patient
