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  1. Article

    Open Access

    Inter-zonal epithelial thickness differences for early keratoconus detection using optical coherence tomography

    To develop and test a parameter for early keratoconus screening by quantifying the localized epithelial thickness differences in keratoconic eyes.

    Tadas Naujokaitis, Ramin Khoramnia, Maximilian Friedrich, Hyeck-Soo Son in Eye (2024)

  2. Article

    Open Access

    Biomechanical changes following corneal crosslinking in keratoconus patients

    To evaluate the biomechanical and tomographic outcomes of keratoconus patients up to four years after corneal crosslinking (CXL).

    Emilia Felter, Ramin Khoramnia in Graefe's Archive for Clinical and Experime… (2024)

  3. Article

    Open Access

    Material Analysis of Explanted Calcified Silicone Intraocular Lenses in Association with Asteroid Hyalosis

    The aim of this study was to analyze posterior surface opacification in explanted silicone intraocular lenses (IOLs) with clinicopathologic correlation to asteroid hyalosis.

    Lizaveta Chychko, Ramin Khoramnia, Hyeck-Soo Son in Ophthalmology and Therapy (2024)

  4. Article

    Open Access

    Clinical outcomes of bilateral implantation of new generation monofocal IOL enhanced for intermediate distance and conventional monofocal IOL in a Korean population

    To compare the clinical outcomes of bilateral implantation of enhanced intermediate function intraocular lenses (IOLs) and standard monofocal IOLs.

    Wan Kyu Choi, Hyo Ji Han, Hyeck-Soo Son, Ramin Khoramnia in BMC Ophthalmology (2023)

  5. No Access

    Chapter

    Vorbereitungen als Operateur

    Die vorherigen Kapitel dienten dazu, das Basiswissen für den Start im Augen-OP zusammenzufassen. In diesem Kapitel sollen Möglichkeiten vorgestellt werden, wie sich der angehende Ophthalmochirurg möglichst pra...

    Frank Wilhelm, Karlheinz Hannig, Martin Knorrn in Ophthalmochirurgie für Einsteiger (2023)

  6. Article

    Open Access

    In situ transduction of cells in human corneal limbus using adeno-associated viruses: an ex vivo study

    This study aimed to evaluate the efficacy of in situ adeno-associated virus (AAV)-mediated gene delivery into the human corneal limbal region via targeted sub-limbal injection technique. Human cadaveric cornea...

    Hyeck-Soo Son, Albert S. Jun, James W. Foster, Wei Wang in Scientific Reports (2022)

  7. Article

    Open Access

    Laboratory Investigation of Preclinical Visual-Quality Metrics and Halo-Size in Enhanced Monofocal Intraocular Lenses

    This study aims to compare preclinical visual-quality metrics and halo size of intraocular lenses (IOL) with enhanced intermediate vision to a standard monofocal lens.

    Grzegorz Łabuz, Hyeck-Soo Son, Tadas Naujokaitis in Ophthalmology and Therapy (2021)

  8. Article

    Open Access

    Comparative analysis of in vitro accelerated glistening formation in foldable hydrophobic intraocular lenses

    To analyse and compare the propensity to form glistenings in 4 different types of hydrophobic acrylic intraocular lenses (IOLs): Alcon AcrySof ® MA60AC, HOYA iSert® PC-60AD, Bausch&Lomb enVista, and Kowa Avans...

    Tamer Tandogan, Gerd U. Auffarth, Chul Young Choi in International Ophthalmology (2021)

  9. Article

    Open Access

    Laboratory analysis and ray visualization of diffractive optics with enhanced intermediate vision

    To assess the optical behavior of a new diffractive intraocular lens (IOL) and compare its performance to that of an established extended-depth-of-focus (EDOF) IOL.

    Hyeck-Soo Son, Grzegorz Łabuz, Ramin Khoramnia, Timur M. Yildirim in BMC Ophthalmology (2021)

  10. Article

    Open Access

    Laboratory evaluation of higher-order aberrations and light scattering in explanted opacified intraocular lenses

    Intraocular lens (IOL) calcification is a serious condition that can only be treated by removing the clouded lens. Since explantation bears the risk of complications, it is often deferred until the patient fin...

    Grzegorz Łabuz, Timur M. Yildirim, Gerd U. Auffarth, Hyeck-Soo Son in Eye and Vision (2021)

  11. Article

    Open Access

    In-vitro glistening formation in six different foldable hydrophobic intraocular lenses

    Glistenings describe small, refractile microvacuoles that may arise within the intraocular lens (IOL) material and reduce the patients’ quality of vision. Lenses composed of hydrophobic acrylic material are pa...

    Tamer Tandogan, Gerd U. Auffarth, Hyeck-Soo Son, Patrick Merz in BMC Ophthalmology (2021)

  12. Article

    Open Access

    Quantification of the In Vitro Predisposition to Glistening Formation in One Manufacturer’s Acrylic Intraocular Lenses Made in Different Decades

    Foldable hydrophobic acrylic intraocular lenses (IOLs) are prone to develop a long-term postoperative material change called glistenings. The aim of this study was to investigate the changes in the predisposit...

    Qiang Wang, Timur M. Yildirim, Sonja K. Schickhardt in Ophthalmology and Therapy (2021)

  13. Article

    Open Access

    Reasons for explantation of phakic intraocular lenses and associated perioperative complications: cross-sectional explant registry analysis

    We discuss the safety, since their introduction, of phakic intraocular lenses (pIOLs) to correct refractive errors in healthy eyes. We investigated the reasons for pIOL explantation and the associated perioper...

    Timur M. Yildirim, Ramin Khoramnia, Hyeck-Soo Son, Christian S. Mayer in BMC Ophthalmology (2021)

  14. Article

    Open Access

    Erratum zu: Reversible Trifokalität durch das Duett-Verfahren

    In der PDF-Version des Artikels war der Satz „Bisherige Linsenmodelle konnten dafür durch refraktive und/oder diffraktive Optiken nur 2 Foci (Fern- und Nahbereich) generieren.“ unvollständig. Die Online-Versio...

    Prof. Dr. med. Ramin Khoramnia, Timur M. Yildirim, Hyeck-Soo Son in Der Ophthalmologe (2020)

  15. Article

    Open Access

    Reversible Trifokalität durch das Duett-Verfahren

    Funktionelle Ergebnisse und das Auftreten von Nebenwirkungen (insbesondere photischer Phänomene) können beim Einsatz multifokaler Intraokularlinsen (IOL) schwer vorhergesagt werden. Des Weiteren können Patient...

    Prof. Dr. med. Ramin Khoramnia, Timur M. Yildirim, Hyeck-Soo Son in Der Ophthalmologe (2020)

  16. Article

    Open Access

    Laboratory evaluation of the optical properties of two extended-depth-of-focus intraocular lenses

    To experimentally compare the optical performance of two different Extended-Depth-of-Focus (EDOF) intraocular lenses (IOLs) using a standardized optical bench set-up.

    Sue Hey Chae, Hyeck Soo Son, Ramin Khoramnia, Kyung Heon Lee in BMC Ophthalmology (2020)

  17. Article

    Open Access

    Functional results and photic phenomena with new extended-depth-of-focus intraocular Lens

    Evaluation of clinical and functional results of a new extended depth of focus intraocular lens (EDOF-IOL).

    Bert C. Giers, Ramin Khoramnia, Dorottya Varadi, Hannah Wallek in BMC Ophthalmology (2019)

  18. Article

    Open Access

    Prospective comparative study of tolerance to refractive errors after implantation of extended depth of focus and monofocal intraocular lenses with identical aspheric platform in Korean population

    To evaluate the clinical outcomes of extended depth of focus (EDOF) and monofocal intraocular lenses (IOLs) that share identical aspheric platform and compare their visual acuity tolerance to postoperative ref...

    Hyeck-Soo Son, Seong Ho Kim, Gerd U. Auffarth, Chul Young Choi in BMC Ophthalmology (2019)

  19. Article

    Open Access

    In vitro optical quality measurements of three intraocular lens models having identical platform

    With recent advances in technology and introduction of new intraocular lens (IOL) models, surgeons today have the opportunity to choose from various optical designs, which can influence the postoperative quali...

    Hyeck Soo Son, Tamer Tandogan, Stephanie Liebing, Patrick Merz in BMC Ophthalmology (2017)