Characteristics of biological parameters and implantable collamer lens (ICL) size selection in moderate, high, and super-high myopia eyes
Abstract Objective To analyze the characteristics of anterior segment biometric parameters in moderate, high, and super-high myopia eyes for ICL size selection. Methods A total of 246 eyes of 131 patients were included in this prospective observational cohort study. Preoperative axis length (AL), ce...
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BMC
2025-03-01
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| Series: | BMC Ophthalmology |
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| Online Access: | https://doi.org/10.1186/s12886-025-03934-y |
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| author | Fei Li Yueni Ma Wenjie Qi Emmanuel Eric Pazo Ruibo Yang Shaozhen Zhao |
| author_facet | Fei Li Yueni Ma Wenjie Qi Emmanuel Eric Pazo Ruibo Yang Shaozhen Zhao |
| author_sort | Fei Li |
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| description | Abstract Objective To analyze the characteristics of anterior segment biometric parameters in moderate, high, and super-high myopia eyes for ICL size selection. Methods A total of 246 eyes of 131 patients were included in this prospective observational cohort study. Preoperative axis length (AL), central keratometry (Kc), central corneal thickness (CCT), white-to-white (WTW), internal anterior chamber depth (ACD), trabecular iris angle (TIA), anterior chamber width (ACW), angle-to-angle distance (ATA), crystalline lens rise (CLR), lens thickness (LT), sulcus-to-sulcus (STS), ICL size, and postoperative vault at 1 month were recorded and compared among the different degrees of myopia groups. Results The moderate myopia showed smaller ACD and TIA than high and super-high myopia (P < 0.05). A higher proportion of CLR positive (+) was in the moderate myopia group (65%), while the super-high myopia group had a higher proportion of CLR negative (-) (55.3%). (P = 0.047). There were no statistical differences among the myopia groups in WTW, ATA, ACW, STS, LT, and postoperative vault (P>0.05). In different degrees of myopia groups, vertical ATA, ACW and STS were longer than horizontal ATA, ACW and STS (P < 0.001), and horizontal-STS showed a higher correlation with horizontal-ATA (r = 0.655) and horizontal-ACW (r = 0.660) than with WTW (r = 0.591). The 12.1 mm size ICL was slightly selected in moderate myopia (35.8%) more than high myopia (14.6%) and super-high myopia (26.3%) (P = 0.013). Conclusion Compared to high and super-high myopia, moderate myopic eyes exhibited smaller ACD, TIA while similar WTW, ATA, ACW and STS, with the lens positioned more anteriorly. It should be concerned to the effect of sagittal axis parameters ACD and CLR on the ICL size in different degrees of myopia. |
| format | Article |
| id | doaj-art-19ca7911d19f4249b2028a855482f094 |
| institution | DOAJ |
| issn | 1471-2415 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | BMC |
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| series | BMC Ophthalmology |
| spelling | doaj-art-19ca7911d19f4249b2028a855482f0942025-08-20T02:59:19ZengBMCBMC Ophthalmology1471-24152025-03-0125111210.1186/s12886-025-03934-yCharacteristics of biological parameters and implantable collamer lens (ICL) size selection in moderate, high, and super-high myopia eyesFei Li0Yueni Ma1Wenjie Qi2Emmanuel Eric Pazo3Ruibo Yang4Shaozhen Zhao5Tianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute, School of Optometry, Tianjin Medical University Eye HospitalTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute, School of Optometry, Tianjin Medical University Eye HospitalTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute, School of Optometry, Tianjin Medical University Eye HospitalTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute, School of Optometry, Tianjin Medical University Eye HospitalTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute, School of Optometry, Tianjin Medical University Eye HospitalTianjin Key Laboratory of Retinal Functions and Diseases, Tianjin Branch of National Clinical Research Center for Ocular Disease, Eye Institute, School of Optometry, Tianjin Medical University Eye HospitalAbstract Objective To analyze the characteristics of anterior segment biometric parameters in moderate, high, and super-high myopia eyes for ICL size selection. Methods A total of 246 eyes of 131 patients were included in this prospective observational cohort study. Preoperative axis length (AL), central keratometry (Kc), central corneal thickness (CCT), white-to-white (WTW), internal anterior chamber depth (ACD), trabecular iris angle (TIA), anterior chamber width (ACW), angle-to-angle distance (ATA), crystalline lens rise (CLR), lens thickness (LT), sulcus-to-sulcus (STS), ICL size, and postoperative vault at 1 month were recorded and compared among the different degrees of myopia groups. Results The moderate myopia showed smaller ACD and TIA than high and super-high myopia (P < 0.05). A higher proportion of CLR positive (+) was in the moderate myopia group (65%), while the super-high myopia group had a higher proportion of CLR negative (-) (55.3%). (P = 0.047). There were no statistical differences among the myopia groups in WTW, ATA, ACW, STS, LT, and postoperative vault (P>0.05). In different degrees of myopia groups, vertical ATA, ACW and STS were longer than horizontal ATA, ACW and STS (P < 0.001), and horizontal-STS showed a higher correlation with horizontal-ATA (r = 0.655) and horizontal-ACW (r = 0.660) than with WTW (r = 0.591). The 12.1 mm size ICL was slightly selected in moderate myopia (35.8%) more than high myopia (14.6%) and super-high myopia (26.3%) (P = 0.013). Conclusion Compared to high and super-high myopia, moderate myopic eyes exhibited smaller ACD, TIA while similar WTW, ATA, ACW and STS, with the lens positioned more anteriorly. It should be concerned to the effect of sagittal axis parameters ACD and CLR on the ICL size in different degrees of myopia.https://doi.org/10.1186/s12886-025-03934-yPosterior chamber intraocular lens implantationMyopiaAnterior chamber parametersICL size |
| spellingShingle | Fei Li Yueni Ma Wenjie Qi Emmanuel Eric Pazo Ruibo Yang Shaozhen Zhao Characteristics of biological parameters and implantable collamer lens (ICL) size selection in moderate, high, and super-high myopia eyes BMC Ophthalmology Posterior chamber intraocular lens implantation Myopia Anterior chamber parameters ICL size |
| title | Characteristics of biological parameters and implantable collamer lens (ICL) size selection in moderate, high, and super-high myopia eyes |
| title_full | Characteristics of biological parameters and implantable collamer lens (ICL) size selection in moderate, high, and super-high myopia eyes |
| title_fullStr | Characteristics of biological parameters and implantable collamer lens (ICL) size selection in moderate, high, and super-high myopia eyes |
| title_full_unstemmed | Characteristics of biological parameters and implantable collamer lens (ICL) size selection in moderate, high, and super-high myopia eyes |
| title_short | Characteristics of biological parameters and implantable collamer lens (ICL) size selection in moderate, high, and super-high myopia eyes |
| title_sort | characteristics of biological parameters and implantable collamer lens icl size selection in moderate high and super high myopia eyes |
| topic | Posterior chamber intraocular lens implantation Myopia Anterior chamber parameters ICL size |
| url | https://doi.org/10.1186/s12886-025-03934-y |
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