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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">ophthalmology</journal-id><journal-title-group><journal-title xml:lang="ru">Офтальмология</journal-title><trans-title-group xml:lang="en"><trans-title>Ophthalmology in Russia</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1816-5095</issn><issn pub-type="epub">2500-0845</issn><publisher><publisher-name>Ophthalmology</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18008/1816-5095-2023-2-298-302</article-id><article-id custom-type="elpub" pub-id-type="custom">ophthalmology-2110</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>КЛИНИЧЕСКИЕ И ЭКСПЕРИМЕНТАЛЬНЫЕ ИССЛЕДОВАНИЯ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>CLINICAL &amp; EXPERIMENTAL RESEARCH</subject></subj-group></article-categories><title-group><article-title>Влияет ли ношение маски на состояние слезной пленки?</article-title><trans-title-group xml:lang="en"><trans-title>Does Continuous Wear of a Face Mask Affect Your Tear Film?</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>Гунаганти</surname><given-names>С.</given-names></name><name name-style="western" xml:lang="en"><surname>Gunaganti</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Sony Gunaganti, - M. Optom Assistant ProfessorDepartment of Optometry Tekkali Village, Nelimarla Mandal, Vizianagaram Pin: 535003, Andhra Pradesh, India</p></bio><bio xml:lang="en"><p>Sony Gunaganti, M. Optom Assistant Professor Department of Optometry School of Paramedical and Allied Health Sciences </p><p>R44R+R4J, Village Alluri Nagar, R. Sitapur, Odisha 761211, India</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кодури</surname><given-names>М.</given-names></name><name name-style="western" xml:lang="en"><surname>Koduri</surname><given-names>M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Manisai Koduri, - M. Optom Assistant Professor Department of Optometry</p><p>Tekkali Village, Nelimarla Mandal, Vizianagaram Pin: 535003, Andhra Pradesh, India</p></bio><bio xml:lang="en"><p>Manisai Koduri, M. Optom Assistant Professor Department of Optometry School of Paramedical and Allied Health Sciences</p><p>R44R+R4J, Village Alluri Nagar, R. Sitapur, Odisha 761211, India</p></bio><email xlink:type="simple">kodurimanisai@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>Мередди</surname><given-names>С.</given-names></name><name name-style="western" xml:lang="en"><surname>Mereddy</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Sravani Mereddy, - M. Optom Head of the Department,Assistant Professor Department of Optometry</p><p>Tekkali Village, Nelimarla Mandal, Vizianagaram Pin: 535003, Andhra Pradesh, India</p></bio><bio xml:lang="en"><p>Sravani Mereddy, M. Optom Head of the Department, Assistant Professor Department of Optometry, School of Paramedical and Allied Health Sciences</p><p>R44R+R4J, Village Alluri Nagar, R. Sitapur, Odisha 761211, India</p></bio><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Многопрофильный частный государственный университет из Одиши</institution><country>Индия</country></aff><aff xml:lang="en"><institution>Centurion University of Technology and Management</institution><country>India</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>01</day><month>07</month><year>2023</year></pub-date><volume>20</volume><issue>2</issue><fpage>298</fpage><lpage>302</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гунаганти С., Кодури М., Мередди С., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Гунаганти С., Кодури М., Мередди С.</copyright-holder><copyright-holder xml:lang="en">Gunaganti S., Koduri M., Mereddy S.</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://www.ophthalmojournal.com/opht/article/view/2110">https://www.ophthalmojournal.com/opht/article/view/2110</self-uri><abstract><p>Постоянное ношение масок во время пандемии вызывает нестабильность слезной пленки. Цель исследования состояла в том, чтобы оценить влияние типа и продолжительности ношения маски, включая кратковременное ношение маски, на показатель времени разрыва слезной пленки (ВСРП).</p><p>Дизайн и методы исследования. Проведено перекрестное сравнительное исследование. Всего в исследовании приняли участие 90 человек (180 глаз) (из них 76 женщин), которые были разделены на три группы по 30 человек в каждой. По группам были выданы хирургические, тканевые или многоразовые фильтрующие маски-респираторы с клапаном (маска N95) для ношения. Базовый уровень ВРСП был определен за 30 минут до ношения маски; следующий показатель ВРСП измеряли через 1 минуту ношения маски, а затем через каждые 30 минут в течение 3,5 часа во всех трех группах. Изменения ВРСП внутри групп и между группами сравнивали с использованием дисперсионного анализа Фридмана и теста Краскела — Уоллиса.</p><sec><title>Результаты</title><p>Результаты. Значительное снижение ВРСП после 30 минут ношения маски наблюдалось только среди пользователей хирургических и тканевых масок и оставалось стабильным у носителей маски N95. Влияние на ВРСП в течение 1,5 часа у всех носителей масок отсутствует. Однако последующая непрерывная значительная разница была очевидна через 2 часа среди пользователей хирургических и тканевых масок и через 3,5 часа среди пользователей маски N95. Те, кто носил маску N95, имели больший показатель ВРСП, а хирургические маски — наименьший.</p></sec><sec><title>Вывод</title><p>Вывод. Ношение хирургической маски значительно влияет на стабильность слезной пленки, за ней следует ношение тканевой маски из-за утечки воздуха. ВРСП минимально изменяется при ношении маски N95.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Purpose</title><p>Purpose. The continuous use of mask wear from pandemic induces instability in tear film due to the air blown up from the mask. The study’s objective was to assess the effect of type of mask wear and duration, including short-term wear of mask on TBUT.</p></sec><sec><title>Design and methods</title><p>Design and methods. This was a cross-sectional, comparative study. A total of 90 (180 eyes) subjects (76 females) were involved in the study and were categorized into three groups, each comprising 30 subjects. Either the groups were given a surgical, cloth, or N95 masks to wear. Baseline TBUT was collected after 30 mins without mask wear; next TBUT was measured immediately after 1 min of mask wear and subsequently after every 30 mins for 3.5 hours among all the three groups. TBUT changes within the groups and between the groups were compared using Friedman ANOVA and the Kruskal Wallis test.</p></sec><sec><title>Results</title><p>Results. There was a significant decline in TBUT after 30 mins of mask wear only among surgical &amp; cloth mask users and was stable in N95 wearers. There is no influence on TBUT for 1.5 hours among all the mask wearers. However, a subsequent continuous significant difference was evident from 2 hours among surgical and cloth mask users and at 3.5 hours within N95 users. N95 wearers have a higher TBUT, and surgical have the least TBUT.</p></sec><sec><title>Conclusion</title><p>Conclusion. Surgical mask wears significantly influence tear film stability, followed by cloth mask wear because of air leak from nose wire. TBUT is minimally affected by N95 wear.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>эффект маски для лица</kwd><kwd>ВРСП</kwd><kwd>влияние маски</kwd><kwd>сухой глаз</kwd><kwd>продолжительность ношения маски</kwd></kwd-group><kwd-group xml:lang="en"><kwd>face mask effect</kwd><kwd>TBUT</kwd><kwd>mask influence</kwd><kwd>dry eye</kwd><kwd>mask duration effect</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">Holly FJ, Lemp MA. Tear physiology and dry eyes. Surv Ophthalmol. 1977 Sep-Oct;22(2):69–87. doi: 10.1016/0039-6257(77)90087-x.</mixed-citation><mixed-citation xml:lang="en">Holly FJ, Lemp MA. Tear physiology and dry eyes. Surv Ophthalmol. 1977 Sep-Oct;22(2):69–87. doi: 10.1016/0039-6257(77)90087-x.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Wolff E. 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