Impact of tear film stability on corneal refractive power measurement and surgical planning for cataract
Purpose: This prospective cohort study aimed to assess the influence of tear film stability on corneal refractive power measurement and surgical planning in cataract patients. Methods: Participants were divided into tear film instability (tear film stability level 2) and control (level 0–1) groups b...
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Elsevier
2025-05-01
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| Series: | Advances in Ophthalmology Practice and Research |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667376225000046 |
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| author | Yuanfeng Jiang Xiteng Chen Yichen Gao Nan Gao Huiyu Wang Yanwen Feng Meisa Li Luning Qin Fei Li Shaozhen Zhao Shaochong Bu Fang Tian |
| author_facet | Yuanfeng Jiang Xiteng Chen Yichen Gao Nan Gao Huiyu Wang Yanwen Feng Meisa Li Luning Qin Fei Li Shaozhen Zhao Shaochong Bu Fang Tian |
| author_sort | Yuanfeng Jiang |
| collection | DOAJ |
| description | Purpose: This prospective cohort study aimed to assess the influence of tear film stability on corneal refractive power measurement and surgical planning in cataract patients. Methods: Participants were divided into tear film instability (tear film stability level 2) and control (level 0–1) groups based on Keratograph 5M results. Using IOL Master 700, two consecutive measurements were obtained with a 10-min interval. Parameters including standard keratometry (Kf, Ks and K), keratometric corneal astigmatism (KCA), total keratometry (TKf, TKs and TK) and total corneal astigmatism (TCA) were recorded. IOL power was calculated using SRK-T, SRK-T TK, Haigis, Haigis TK, Barrett Universal II, and Barrett Universal II TK formulas. Results: The results showed significantly higher differences between two measurements in Kf, K, KCA, TKf, TK, and TCA, as well as the vector variability of corneal astigmatism in the tear film instability group (all P < 0.05). Of all formulas, only the SRK-T formula displayed significantly higher variability in IOL power calculations in the tear film instability group compared to the control group (P < 0.05). Conclusions: This study highlights that tear film instability can lead to deviations in corneal refractive power and astigmatism measurements, contributing to increased prediction errors in IOL power calculation, particularly with the SRK-T formula. |
| format | Article |
| id | doaj-art-28e50de8cfb74e0abbeec47aa3c105b5 |
| institution | DOAJ |
| issn | 2667-3762 |
| language | English |
| publishDate | 2025-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Advances in Ophthalmology Practice and Research |
| spelling | doaj-art-28e50de8cfb74e0abbeec47aa3c105b52025-08-20T03:12:57ZengElsevierAdvances in Ophthalmology Practice and Research2667-37622025-05-015210010610.1016/j.aopr.2025.02.001Impact of tear film stability on corneal refractive power measurement and surgical planning for cataractYuanfeng Jiang0Xiteng Chen1Yichen Gao2Nan Gao3Huiyu Wang4Yanwen Feng5Meisa Li6Luning Qin7Fei Li8Shaozhen Zhao9Shaochong Bu10Fang Tian11Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, ChinaTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, ChinaCorresponding author.; Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, ChinaCorresponding author.; Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute and School of Optometry, Tianjin Medical University Eye Hospital, Tianjin, ChinaPurpose: This prospective cohort study aimed to assess the influence of tear film stability on corneal refractive power measurement and surgical planning in cataract patients. Methods: Participants were divided into tear film instability (tear film stability level 2) and control (level 0–1) groups based on Keratograph 5M results. Using IOL Master 700, two consecutive measurements were obtained with a 10-min interval. Parameters including standard keratometry (Kf, Ks and K), keratometric corneal astigmatism (KCA), total keratometry (TKf, TKs and TK) and total corneal astigmatism (TCA) were recorded. IOL power was calculated using SRK-T, SRK-T TK, Haigis, Haigis TK, Barrett Universal II, and Barrett Universal II TK formulas. Results: The results showed significantly higher differences between two measurements in Kf, K, KCA, TKf, TK, and TCA, as well as the vector variability of corneal astigmatism in the tear film instability group (all P < 0.05). Of all formulas, only the SRK-T formula displayed significantly higher variability in IOL power calculations in the tear film instability group compared to the control group (P < 0.05). Conclusions: This study highlights that tear film instability can lead to deviations in corneal refractive power and astigmatism measurements, contributing to increased prediction errors in IOL power calculation, particularly with the SRK-T formula.http://www.sciencedirect.com/science/article/pii/S2667376225000046Tear film stabilitydry eyeCataract surgeryCorneal refractive powerIOL power calculation |
| spellingShingle | Yuanfeng Jiang Xiteng Chen Yichen Gao Nan Gao Huiyu Wang Yanwen Feng Meisa Li Luning Qin Fei Li Shaozhen Zhao Shaochong Bu Fang Tian Impact of tear film stability on corneal refractive power measurement and surgical planning for cataract Advances in Ophthalmology Practice and Research Tear film stability dry eye Cataract surgery Corneal refractive power IOL power calculation |
| title | Impact of tear film stability on corneal refractive power measurement and surgical planning for cataract |
| title_full | Impact of tear film stability on corneal refractive power measurement and surgical planning for cataract |
| title_fullStr | Impact of tear film stability on corneal refractive power measurement and surgical planning for cataract |
| title_full_unstemmed | Impact of tear film stability on corneal refractive power measurement and surgical planning for cataract |
| title_short | Impact of tear film stability on corneal refractive power measurement and surgical planning for cataract |
| title_sort | impact of tear film stability on corneal refractive power measurement and surgical planning for cataract |
| topic | Tear film stability dry eye Cataract surgery Corneal refractive power IOL power calculation |
| url | http://www.sciencedirect.com/science/article/pii/S2667376225000046 |
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