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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">glaucoma</journal-id><journal-title-group><journal-title xml:lang="ru">Национальный журнал Глаукома</journal-title><trans-title-group xml:lang="en"><trans-title>National Journal glaucoma</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2078-4104</issn><issn pub-type="epub">2311-6862</issn><publisher><publisher-name>Federal State Budgetary Institution of Science “Krasnov Research Institute of Eye Diseases”</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25700/NJG.2020.03.04</article-id><article-id custom-type="elpub" pub-id-type="custom">glaucoma-285</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>ОРИГИНАЛЬНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Изменение биометрических параметров глаза после гипотензивных операций</article-title><trans-title-group xml:lang="en"><trans-title>Changes in biometric parameters of the eye following glaucoma surgery</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>Белов</surname><given-names>Д. Ф.</given-names></name><name name-style="western" xml:lang="en"><surname>Belov</surname><given-names>D. F.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Белов Дмитрий Федорович, врач-офтальмолог</p><p>194354, Санкт-Петербург, пер. Учебный, д. 5</p></bio><bio xml:lang="en"><p>Ophthalmologist</p><p>5 Uchebniy pereulok, Saint-Petersburg, 194354</p></bio><email xlink:type="simple">belovd1990@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>Николаенко</surname><given-names>В. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaenko</surname><given-names>V. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Доктор медицинских наук, заместитель главного врача по офтальмологии</p><p>194354, Санкт-Петербург, пер. Учебный, д. 5;  199034, Санкт-Петербург, Университетская наб., д. 7/9.</p></bio><bio xml:lang="en"><p>Med.Sc.D., Deputy Chief Physician of Ophthalmology</p><p>5 Uchebniy pereulok, Saint-Petersburg, 194354; 7/9 University Embankment, Saint-Petersburg, 199034</p></bio><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>СПб ГБУЗ «Городская многопрофильная больница № 2»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg Multifield Hospital N 2</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>СПб ГБУЗ «Городская многопрофильная больница № 2»; &#13;
ФГБОУ ВО «Санкт-Петербургский государственный университет»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Saint-Petersburg Multifield Hospital N 2; &#13;
Saint Petersburg State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>09</day><month>10</month><year>2020</year></pub-date><volume>19</volume><issue>3</issue><fpage>35</fpage><lpage>41</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Белов Д.Ф., Николаенко В.П., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Белов Д.Ф., Николаенко В.П.</copyright-holder><copyright-holder xml:lang="en">Belov D.F., Nikolaenko V.P.</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.glaucomajournal.ru/jour/article/view/285">https://www.glaucomajournal.ru/jour/article/view/285</self-uri><abstract><sec><title>ЦЕЛЬ</title><p>ЦЕЛЬ. Оценка изменений биометрических параметров глаза после трех видов гипотензивных операций — синустрабекулэктомии (СТЭ), установки шунта Ex-PRESS, имплантации клапана Ahmed.</p></sec><sec><title>МЕТОДЫ</title><p>МЕТОДЫ. В исследуемую когорту вошли 196 пациентов, которые были разделены на три группы: 1-я — пациенты, которым выполнена СТЭ (116 человек); 2-я — пациенты после установки шунта Ex-PRESS (28 человек); 3-я — пациенты с имплантацией клапана Ahmed (52 человека). Всем обследуемым до операции, а также через 30 дней и 6 месяцев после вмешательства выполнялись стандартное офтальмологическое обследование, авторефрактокератометрия (Topcon-8800), а также измерение длины переднезадней оси (ПЗО) и глубины передней камеры (ГПК) (IOL-Master 500), тонометрия (iCare) с последующим сравнением дои послеоперационных результатов.</p></sec><sec><title>РЕЗУЛЬТАТЫ</title><p>РЕЗУЛЬТАТЫ. Выявлено уменьшение средних показателей кератометрии (с 44,08±1,06 до 43,94±1,21 дптр, p=0,023) спустя 6 месяцев после имплантации клапана Ahmed. У пациентов после СТЭ, наоборот, наблюдалось некоторое увеличение (с 44,39±1,13 до 44,55±1,09 дптр, p&lt;0,001) преломляющей силы роговицы через месяц. В группе Ex-PRESS колебания средних значений кератометрии были незначимыми. Преломляющая сила «крутого» меридиана роговицы через месяц после СТЭ стала больше на 0,37±0,51 дптр (p&lt;0,001), а спустя 6 месяцев на 0,28±0,59 дптр (p=0,002). В группе Ex-PRESS наблюдалось достоверное уменьшение силы «плоского» меридиана (на 0,29±0,36 дптр через месяц, p=0,002; на 0,28±0,37 дптр спустя полгода, p=0,003). В группе Ahmed произошло уменьшение преломляющей силы «плоского» меридиана роговицы через 6 месяцев на 0,14±0,38 дптр, p=0,036. Ось сильного меридиана роговой оболочки в группах СТЭ и Ex-PRESS практически не меняется. У пациентов с Ahmed предоперационная условно вертикальная (88,6±50,5°) ось прямого астигматизма через 6 месяцев после вмешательства смещается в косые меридианы (71,4±48,9°, p=0,057). В группах СТЭ и Ex-PRESS укорочение ПЗО спустя полгода составило 0,09±0,19 (p&lt;0,001) и 0,08±0,1 мм (p&lt;0,001) для групп соответственно. У пациентов после имплантации клапана Ahmed укорочение аксиальной длины глаза было незначимым (0,08±0,4 мм через 6 месяцев). Полгода спустя у всех пациентов наблюдался практически полный регресс измельчения передней камеры и возвращение ГПК к исходному предоперационному уровню.</p></sec><sec><title>ЗАКЛЮЧЕНИЕ</title><p>ЗАКЛЮЧЕНИЕ. Индуцированные гипотензивной операцией изменения ключевых параметров расчета ИОЛ (кератометрия, ПЗО, ГПК) могут приводить к ошибкам в выборе оптической силы искусственного хрусталика. Поэтому расчет ИОЛ желательно производить не ранее чем через 6 месяцев после гипотензивной операции.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>PURPOSE</title><p>PURPOSE: To assess the impact of trabeculectomy, Ex-PRESS shunt and Ahmed valve implantation on biometrical values of the eye.</p></sec><sec><title>METHODS</title><p>METHODS: The study included 196 patients divided in</p></sec><sec><title>3 groups</title><p>3 groups: trabeculectomy (TE) group (n=116), Ex-PRESS shunt (EXP) group (n=28) and Ahmed glaucoma valve (AGV) group (n=52). Each patient underwent optical biometry (keratometry, axial length, anterior chamber depth), autorefractometry (Topcon-8800) intraocular pressure (iCare) and standard ophthalmological examination prior to the surgery, 1 month and 6 months after. Preoperative and postsurgical data were compared to assess biometric values changes.</p></sec><sec><title>RESULTS</title><p>RESULTS: There was a mild decrease of mean keratometry 6 months after AGV implantation (from 44.08±1.06 to</p></sec><sec><title>43</title><p>43.94±1.21 D, p=0.023). On the contrary, TE increased corneal refractive power (from 44.39±1.13 to 44.55±1.09 D, p&lt;0.001) 1 month after the surgery. There were no significant changes in EXP group. Steep meridian curvature increases by 0.28±0.59 D (p=0.002) 6 months after TE. EXP implantation induced flattening of weak corneal meridian (by 0.28±0.37 D 6 months after the surgery, p=0.003) as well as AGV group (decrease on 0.14±0.38 D, p=0.036). There were no significant changes in steep meridian axis in TE and EXP groups. However, AGV implantation leads to steep meridian axis bias from</p></sec><sec><title>88</title><p>88.6±50.5 to 71.4±48.9° (p=0.057). TE and EXP induced mild axial length (AL) reduction (by 0.09±0.19 mm, p&lt;0.001 and by 0.08±0.1 mm, p&lt;0.001 for groups respectively) 6 months after the surgery. AL shortening in AGV group was insignificant (by 0.08±0.4 mm 6 months after procedure). There was no significant difference in anterior chamber depth (ACD) before and after the surgery for all study groups.</p></sec><sec><title>CONCLUSION</title><p>CONCLUSION: Impact of glaucoma surgery on main biometrical values used to IOL power calculation (keratometry, AL, ACD) could lead to refractive errors after phacoemulsification. Thus, biometry for patients who require cataract extraction should be performed not earlier than 6 months after glaucoma surgery.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>глаукома</kwd><kwd>биометрия</kwd><kwd>расчет ИОЛ</kwd><kwd>факоэмульсификация</kwd><kwd>шунт Ex-PRESS</kwd><kwd>клапан Ahmed</kwd></kwd-group><kwd-group xml:lang="en"><kwd>glaucoma</kwd><kwd>biometry</kwd><kwd>IOL power calculation</kwd><kwd>phacoemulsification</kwd><kwd>Ex-PRESS shunt</kwd><kwd>Ahmed glaucoma valve</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">Akhtar F. The effect of trabeculectomy on corneal curvature. Pak J Ophthalmol. 2008; 24(3):118–121.</mixed-citation><mixed-citation xml:lang="en">Akhtar F. The effect of trabeculectomy on corneal curvature. 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