1. Articles from Zhenzhen Liu

    1-2 of 2
    1. Accuracy of new generation intraocular lens calculation formulas in vitrectomized eyes

      Accuracy of new generation intraocular lens calculation formulas in vitrectomized eyes

      Purpose To compare the prediction accuracy of new intraocular lens (IOL) calculation formulas (Barrett Universal II (BUII), Emmetropia Verifying Optical (EVO), Kane and Ladas Super formula) and traditional formulas (Haigis, Hoffer Q, Holladay 1 and SRK/T) with Wang-Koch (WK) axial length (AL) adjustment in vitrectomized eyes. Design Retrospective consecutive case-series study. Methods 111 eyes of 111 patients underwent uneventful phacoemulsification and enVista MX60 implantation following vitrectomy were enrolled and divided into four groups according to whether the vitreous cavity was filled with silicone oil. The performance of each formula was evaluated with or without lens constant optimization. Results Before ...

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    2. Comparison of radius of anterior lens surface curvature measurements in vivo using the anterior segment optical coherence tomography and Scheimpflug imaging

      Comparison of radius of anterior lens surface curvature measurements in vivo using the anterior segment optical coherence tomography and Scheimpflug imaging

      Background: To assess the radius of anterior lens surface curvature (RAL) measurements with anterior segment optical coherence tomography (AS-OCT) in comparison with Scheimpflug imaging. Methods: This prospective, cross-sectional study was carried out at Zhongshan Ophthalmic Center, Guangzhou, China. We enrolled 59 eyes, including 30 eyes from 30 cataractous volunteers (59 to 87 years) and 29 eyes from 29 young participants (19 to 49 years). After mydriasis, the RAL was measured automatically by the built-in software in the AS-OCT (CASIA 2). The Scheimpflug images were measured with the build-in caliper tool of the Scheimpflug camera (Pentacam), and RAL were further calculated ...

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    1-2 of 2
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