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Dynamic assessment of variations in pupil diameter using swept‑source anterior segment optical coherence tomography after phakic collamer lens implantation

查看全文 作　　者：Felix Gonzalez‑[1]Lopez;Carmen Bouza‑[1]Miguens;Victor [1]Tejerina;Vasyl [2]Druchkiv;Blas [1]Mompean;Julio Ortega‑[1]Usobiaga;Rafael Bilbao‑[1]Calabuig 高影响力作者 机构地区：[1]Department of Refractive Surgery,Clinica Baviera,Melchor Fernández Almagro,9,28029 Madrid,Spain;[2]Department of Research and Development,Clinica Baviera,Valencia,Spain高影响力机构 出　　处：《Eye and Vision》索引2021年第8卷第1期,共8页高影响力期刊 摘　　要：Purpose:To dynamically assess variations in pupil diameter induced by changes in brightness in myopic eyes implanted with an implantable collamer lens(ICL,STAAR Surgical)with a central port.Methods:This prospective,observational single-center case series study comprised 65 eyes from 65 consecutive patients undergoing ICL implant.A modified commercially available swept-source Fourier-domain anterior segment optical coherence tomography(AS-OCT)device was used for imaging and performing dynamic pupillometry under changing light conditions before and after a mean follow-up interval of four months after surgery.Results:Preoperative mean pupil size under photopic conditions was 3.38±0.64 mm;after surgery,this increased to 3.48±0.61 mm.Mean pupil size under scotopic light conditions was 5.72±0.79 mm before surgery and 5.84±0.77 mm postoperatively.The differences between preoperative and postoperative pupil diameter in miosis and mydriasis were 0.10±0.44 mm(P=0.078)and 0.12±0.58 mm(P=0.098),respectively.The scotopic pupil exceeded the optic zone of the implanted lens in 39 eyes(60%).The mean central vault value was 412±177μm under maximum miosis and 506±190μm under maximum mydriasis.We found a positive correlation between vault and differences in pupil diameter under all light conditions(P<0.05).Conclusion:Dynamic AS-OCT enables a very precise determination of the pupillary diameter in the iris plane.The changes in the pupil diameter under different light conditions after the implantation of an ICL are related to the postoperative vault. 关 键 词：Phakic collamer lens ICL PUPIL OCT Central hole Central port Posterior chamber phakic lens
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