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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">medbio</journal-id><journal-title-group><journal-title xml:lang="ru">Медико-биологические проблемы жизнедеятельности</journal-title><trans-title-group xml:lang="en"><trans-title>Medical and Biological Problems of Life Activity</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2074-2088</issn><publisher><publisher-name>Республиканский научно-практический центр радиационной медицины и экологии человека</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.58708/2074-2088.2026-2(38)-109-114</article-id><article-id custom-type="elpub" pub-id-type="custom">medbio-524</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ОБМЕН ОПЫТОМ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>EXPERIENCE EXCHANGE</subject></subj-group></article-categories><title-group><article-title>Клинический случай сохранности зрительных функций при гемодинамически значимом стенозе внутренней сонной артерии</article-title><trans-title-group xml:lang="en"><trans-title>A clinical case of visual function preservation in hemodynamically significant stenosis of the internal carotid artery</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мордовкина</surname><given-names>Я. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Mordovkina</surname><given-names>Ya. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Гомель</p></bio><email xlink:type="simple">mardoukinayanina@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4174-8288</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жарикова</surname><given-names>А О.</given-names></name><name name-style="western" xml:lang="en"><surname>Zharikova</surname><given-names>A. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Гомель</p></bio><email xlink:type="simple">anastazia.zharikova@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бобр</surname><given-names>Т. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Bobr</surname><given-names>T. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Гомель</p></bio><email xlink:type="simple">ttbobr@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мордовкин</surname><given-names>Е. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Mordovkin</surname><given-names>E. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Гомель</p></bio><email xlink:type="simple">mardoukinayanina@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Вашкевич</surname><given-names>Г. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Vashkevich</surname><given-names>G. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>г. Минск</p></bio><email xlink:type="simple">G.vashkevich@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>ГУ «РНПЦ радиационной медицины и экологии человека»</institution><country>Belarus</country></aff><aff xml:lang="ru" id="aff-2"><institution>УЗ «Гомельская университетская клиника – областной госпиталь инвалидов Великой Отечественной войны»</institution><country>Belarus</country></aff><aff xml:lang="ru" id="aff-3"><institution>УО «Белорусский государственный медицинский университет»</institution><country>Belarus</country></aff><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>01</day><month>11</month><year>2026</year></pub-date><volume>0</volume><issue>3</issue><fpage>109</fpage><lpage>114</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Мордовкина Я.В., Жарикова А.О., Бобр Т.В., Мордовкин Е.Б., Вашкевич Г.В., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Мордовкина Я.В., Жарикова А.О., Бобр Т.В., Мордовкин Е.Б., Вашкевич Г.В.</copyright-holder><copyright-holder xml:lang="en">Mordovkina Y.V., Zharikova A.O., Bobr T.V., Mordovkin E.B., Vashkevich G.V.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://medbio.ejournal.by/jour/article/view/524">https://medbio.ejournal.by/jour/article/view/524</self-uri><abstract><p>В работе представлен обзор литературных данных, посвящённых причинам и механизмам несоответствия между степенью сужения просвета внутренней сонной артерии и выраженностью зрительных нарушений. В статье представлен клинический случай сохранности зрительных функций у пациента с гемодинамически значимым стенозом внутренней сонной артерии. Актуальность работы обусловлена тем, что степень стенотического поражения магистральных артерий головы не всегда соответствует выраженности клинических проявлений со стороны органа зрения, что затрудняет прогнозирование функционального состояния зрительного анализатора. Особое внимание уделено результатам комплексного офтальмологического обследования и оценке сосудистого русла брахиоцефальных артерий. Представленное наблюдение показывает, что даже при выраженном стенотическом поражении внутренней сонной артерии возможно сохранение высоких зрительных функций и отсутствие значимых структурно-функциональных изменений со стороны зрительного анализатора. Полученные данные свидетельствуют о важной роли индивидуальных компенсаторных механизмов, обеспечивающих поддержание адекватной перфузии тканей глаза и зрительного нерва. Результаты работы расширяют представления о механизмах сохранности зрительных функций при патологии сонных артерий и подтверждают значимость коллатерального кровообращения в поддержании функциональной состоятельности зрительного анализатора.</p></abstract><trans-abstract xml:lang="en"><p>This article presents a review of the literature on the causes and mechanisms of the discrepancy between the degree of narrowing of the internal carotid artery and the severity of visual impairment. A clinical case of preserved visual function in a patient with hemodynamically significant stenosis of the internal carotid artery is presented. The relevance of this study is due to the fact that the degree of stenotic damage to the main arteries of the head does not always correspond to the severity of clinical manifestations in the organ of vision, which complicates the prediction of the functional state of the visual analyzer. Particular attention is paid to the results of a comprehensive ophthalmological examination and an assessment of the vascular bed of the brachiocephalic arteries. This observation demonstrates that even with severe stenotic damage to the internal carotid artery, high visual function can be preserved and significant structural and functional changes in the visual analyzer can be absent. The data obtained demonstrate the important role of individual compensatory mechanisms in maintaining adequate perfusion of the ocular tissues and optic nerve. The results of the study expand our understanding of the mechanisms of preservation of visual functions in pathology of the carotid arteries and confirm the importance of collateral circulation in maintaining the functional capacity of the visual analyzer.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>стеноз внутренней сонной артерии</kwd><kwd>коллатеральное кровоснабжение</kwd><kwd>позвоночная артерия</kwd><kwd>зрительные функции</kwd><kwd>компьютерная томографическая ангиография</kwd><kwd>сканирующая лазерная периметрия</kwd><kwd>компьютерная периметрия</kwd></kwd-group><kwd-group xml:lang="en"><kwd>internal carotid artery stenosis</kwd><kwd>collateral blood supply</kwd><kwd>vertebral artery</kwd><kwd>visual functions</kwd><kwd>computed tomography angiography</kwd><kwd>scanning laser perimetry</kwd><kwd>computer perimetry</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Kawaguchi, S. 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