{"title":"利用前段光学相干断层扫描电影分析评估人工晶状体动态运动。","authors":"Ryo Ohira, Yoichiro Masuda, Sachiyo Okude, Masanobu Iida, Kosuke Ichihara, Koji Komatsu, Takuya Shiba, Hisaharu Iwaki, Kotaro Oki, Tadashi Nakano","doi":"10.3928/1081597X-20250307-02","DOIUrl":null,"url":null,"abstract":"<p><strong>Purpose: </strong>To introduce a method to quantitatively assess dynamic intraocular lens (IOL) positioning using anterior segment optical coherence tomography (AS-OCT).</p><p><strong>Methods: </strong>This retrospective observational study analyzed 13 eyes with in-the-bag IOL fixation between May and December 2023 at the Ophthalmology Department of The Jikei University School of Medicine Hospital in Tokyo. Using ASOCT imaging during horizontal eye movements, dynamic IOL and iris movement angles were quantitatively assessed, compared with conventional static IOL tilt and decentration, and their interrelations were examined.</p><p><strong>Results: </strong>Static measurements revealed an average IOL tilt of 4.1 ± 1.3 degrees (range: 1.9 to 5.9 degrees) and decentration of 0.17 ± 0.10 mm (range: 0.02 to 0.38 mm). Dynamic analysis showed IOL movement angles of 2.6 ± 2.1 degrees (range: 0.3 to 7.3 degrees) and iris movement angles of 4.1 ± 3.4 degrees (range: 0.3 to 10.3 degrees). No correlation was found between the dynamic IOL movement angle and static IOL tilt and decentration, with some cases showing discrepancies (Spearman's rank correlation, <i>P</i> > .05). However, a strong positive correlation was observed between the dynamic IOL and iris movement angles (Spearman's rank correlation, <i>R</i> = 0.83, <i>P</i> < .05).</p><p><strong>Conclusions: </strong>Although the static IOL tilt and decentration were within normal ranges, significant oscillations in IOL positioning were detected, highlighting the importance of dynamic assessment for evaluating IOL stability during daily activities. This study underscores the potential value of dynamic evaluation of IOL position in routine clinical practice. <b>[<i>J Refract Surg</i>. 2025;41(5):e444-e450.]</b>.</p>","PeriodicalId":16951,"journal":{"name":"Journal of refractive surgery","volume":"41 5","pages":"e444-e450"},"PeriodicalIF":2.9000,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Evaluation of Dynamic Intraocular Lens Movement Using Anterior Segment Optical Coherence Tomography Movie Analysis.\",\"authors\":\"Ryo Ohira, Yoichiro Masuda, Sachiyo Okude, Masanobu Iida, Kosuke Ichihara, Koji Komatsu, Takuya Shiba, Hisaharu Iwaki, Kotaro Oki, Tadashi Nakano\",\"doi\":\"10.3928/1081597X-20250307-02\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Purpose: </strong>To introduce a method to quantitatively assess dynamic intraocular lens (IOL) positioning using anterior segment optical coherence tomography (AS-OCT).</p><p><strong>Methods: </strong>This retrospective observational study analyzed 13 eyes with in-the-bag IOL fixation between May and December 2023 at the Ophthalmology Department of The Jikei University School of Medicine Hospital in Tokyo. Using ASOCT imaging during horizontal eye movements, dynamic IOL and iris movement angles were quantitatively assessed, compared with conventional static IOL tilt and decentration, and their interrelations were examined.</p><p><strong>Results: </strong>Static measurements revealed an average IOL tilt of 4.1 ± 1.3 degrees (range: 1.9 to 5.9 degrees) and decentration of 0.17 ± 0.10 mm (range: 0.02 to 0.38 mm). Dynamic analysis showed IOL movement angles of 2.6 ± 2.1 degrees (range: 0.3 to 7.3 degrees) and iris movement angles of 4.1 ± 3.4 degrees (range: 0.3 to 10.3 degrees). No correlation was found between the dynamic IOL movement angle and static IOL tilt and decentration, with some cases showing discrepancies (Spearman's rank correlation, <i>P</i> > .05). However, a strong positive correlation was observed between the dynamic IOL and iris movement angles (Spearman's rank correlation, <i>R</i> = 0.83, <i>P</i> < .05).</p><p><strong>Conclusions: </strong>Although the static IOL tilt and decentration were within normal ranges, significant oscillations in IOL positioning were detected, highlighting the importance of dynamic assessment for evaluating IOL stability during daily activities. 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引用次数: 0
摘要
目的：介绍一种利用前段光学相干断层扫描（AS-OCT）定量评估人工晶状体（IOL）动态定位的方法。方法：本回顾性观察研究分析了东京智庆大学医学院医院眼科于2023年5月至12月期间进行的13只眼袋内人工晶状体固定手术。在水平眼动过程中，采用ASOCT成像定量评估动态IOL和虹膜运动角度，并与常规静态IOL倾斜和分散进行比较，并分析两者之间的相互关系。结果：静态测量显示IOL平均倾斜4.1±1.3度（范围：1.9 ~ 5.9度），偏心0.17±0.10 mm（范围：0.02 ~ 0.38 mm）。动态分析显示IOL移动角度为2.6±2.1度（0.3 ~ 7.3度），虹膜移动角度为4.1±3.4度（0.3 ~ 10.3度）。动态人工晶状体移动角度与静态人工晶状体倾斜、离体无相关性，部分病例存在差异（Spearman’s rank correlation, P < 0.05）。动态人工晶状体与虹膜运动角呈正相关（Spearman’s rank correlation, R = 0.83, P < 0.05）。结论：虽然IOL的静态倾斜和分散在正常范围内，但IOL的定位有明显的振荡，强调了在日常活动中动态评估IOL稳定性的重要性。本研究强调了动态评估人工晶状体位置在常规临床实践中的潜在价值。[J].中华眼科杂志，2015;41(5):444- 445。
Evaluation of Dynamic Intraocular Lens Movement Using Anterior Segment Optical Coherence Tomography Movie Analysis.
Purpose: To introduce a method to quantitatively assess dynamic intraocular lens (IOL) positioning using anterior segment optical coherence tomography (AS-OCT).
Methods: This retrospective observational study analyzed 13 eyes with in-the-bag IOL fixation between May and December 2023 at the Ophthalmology Department of The Jikei University School of Medicine Hospital in Tokyo. Using ASOCT imaging during horizontal eye movements, dynamic IOL and iris movement angles were quantitatively assessed, compared with conventional static IOL tilt and decentration, and their interrelations were examined.
Results: Static measurements revealed an average IOL tilt of 4.1 ± 1.3 degrees (range: 1.9 to 5.9 degrees) and decentration of 0.17 ± 0.10 mm (range: 0.02 to 0.38 mm). Dynamic analysis showed IOL movement angles of 2.6 ± 2.1 degrees (range: 0.3 to 7.3 degrees) and iris movement angles of 4.1 ± 3.4 degrees (range: 0.3 to 10.3 degrees). No correlation was found between the dynamic IOL movement angle and static IOL tilt and decentration, with some cases showing discrepancies (Spearman's rank correlation, P > .05). However, a strong positive correlation was observed between the dynamic IOL and iris movement angles (Spearman's rank correlation, R = 0.83, P < .05).
Conclusions: Although the static IOL tilt and decentration were within normal ranges, significant oscillations in IOL positioning were detected, highlighting the importance of dynamic assessment for evaluating IOL stability during daily activities. This study underscores the potential value of dynamic evaluation of IOL position in routine clinical practice. [J Refract Surg. 2025;41(5):e444-e450.].
期刊介绍：
The Journal of Refractive Surgery, the official journal of the International Society of Refractive Surgery, a partner of the American Academy of Ophthalmology, has been a monthly peer-reviewed forum for original research, review, and evaluation of refractive and lens-based surgical procedures for more than 30 years. Practical, clinically valuable articles provide readers with the most up-to-date information regarding advances in the field of refractive surgery. Begin to explore the Journal and all of its great benefits such as:
• Columns including “Translational Science,” “Surgical Techniques,” and “Biomechanics”
• Supplemental videos and materials available for many articles
• Access to current articles, as well as several years of archived content
• Articles posted online just 2 months after acceptance.
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