Clinical Prediction of Excessive Vault After Implantable Collamer Lens Implantation Using Ciliary Body Morphology
| Autor: | Weina Tan, Zheng Wang, Lei Xiaohua, Chao Pan, Qian Chen, Qingyan Zeng, Lina Jin |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Adult
Male medicine.medical_specialty Phakic Intraocular Lenses Biometry Anterior Chamber Microscopy Acoustic Visual Acuity Refraction Ocular Corneal Diseases 03 medical and health sciences Young Adult 0302 clinical medicine Ciliary body Lens Implantation Intraocular Ophthalmology medicine Myopia Humans Vault (organelle) Retrospective Studies Implantable collamer lens business.industry Ciliary Body Astigmatism Odds ratio medicine.anatomical_structure Increased risk Case-Control Studies Logistic analysis 030221 ophthalmology & optometry Surgery Multiple linear regression analysis Conditional logistic regression Female business 030217 neurology & neurosurgery |
| Zdroj: | Journal of refractive surgery (Thorofare, N.J. : 1995). 36(6) |
| ISSN: | 1081-597X |
| Popis: | PURPOSE: To determine the factors related to the ciliary body that are predictive of outcomes of excessive vault (> 1,000 µm) after Implantable Collamer Lens (ICL V4c; STAAR Surgical) implantation. METHODS: In this retrospective case-control study, 27 eyes of 27 patients who presented with excessive vault (> 1,000 µm) following implantation of an ICL V4c were matched in a 1:2 ratio with those who presented with a normal vault (250 to 1,000 µm) on white-to-white distance, anterior chamber depth, and ICL size. The preoperative biometric parameters and clinical outcomes were compared between the two groups. The relationship between the postoperative vault and various variables was assessed by multiple linear regression analysis. Conditional logistic regression models were used to estimate odds ratios (ORs) and 95% CIs for excessive vault. RESULTS: The vault value 1 month postoperatively was associated with preoperative anterior chamber volume, iris-ciliary angle, and crystalline lens rise ( P < .05). In the conditional regression logistic analysis, every 1° reduction in iris-ciliary angle was associated with 4% increased odds of vault greater than 1,000 µm (OR = 0.96; 95% CI = 0.93 to 0.99; P < .001) and the anteriorly positioned ciliary body was associated with an increased risk of excessive vault after ICL implantation (OR = 3.57; 95% CI = 1.67 to 7.63; P < .001). In the excessive vault group, 1 eye underwent the ICL extraction and 3 eyes had an ICL exchange for a smaller ICL. After the ICL exchange, the mean value of postoperative vault decreased from 1,525.67 ± 468.22 to 810.33 ± 254.92 µm. CONCLUSIONS: Eyes with an anteriorly positioned ciliary body were associated with a higher rate of excessive vault after ICL implantation, so the size of the ICL may need to be adjusted in these patients. Assessment of ciliary body characteristics adds significant information to the prediction of excessive vault after surgery. [ J Refract Surg . 2020;36(6):380–387.] |
| Databáze: | OpenAIRE |
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