Publications by authors named "Helene Rouger"

Purpose: To assess an new objective deep learning model cataract grading method based on Swept-Source Optical Coherence Tomography (SS-OCT) scans provided by the Anterion® (Heidelberg, Germany).

Setting: Single centre study at the Rothschild Foundation, Paris, France.

Design: Prospective cross-sectional study.

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Purpose: To combine objective machine-derived corneal parameters obtained with new swept-source optical coherence tomography (SS-OCT) tomographer (Anterion) to differentiate between normal (N), keratoconus (KC) and forme fruste KC (FFKC).

Setting: Laser Center, Hôpital Fondation Adolphe de Rothschild, Paris, France.

Design: Retrospective study.

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Purpose: The diagnosis of cataract is mostly clinical and there is a lack of objective and specific tool to detect and grade it automatically. The goal of this study was to develop and validate a deep learning model to detect and localize cataract on Swept Source Optical Coherance Tomography (SS-OCT) images.

Methods: We trained a convolutional network to detect cataract at the pixel level from 504 SS-OCT images of clear lens and cataract patients.

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Purpose: The aim of this study was to determine the mechanisms leading to the refractive shift and intraocular lens calculation error induced by Descemet membrane endothelial keratoplasty (DMEK), using ocular biometry and corneal elevation tomography data.

Methods: This is a retrospective, monocentric cohort study. Eyes which underwent uncomplicated DMEK surgery with available pre-DMEK and post-DMEK Scheimpflug rotating camera data (Pentacam, Oculus, Wetzlar, Germany) were considered for inclusion with an age-matched control group of healthy corneas.

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Purpose: To report the repeatability, level of agreement, and correlation of 2 swept-source optical coherence tomography (SS-OCT) biometers, the IOLMaster 700 (biometer A) and the ANTERION (biometer B).

Setting: Rothschild Foundation Hospital, Paris, France.

Design: Prospective comparative case series.

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Purpose: To assess a revised version of an objective cataract grading method based on the lens densitometry on swept-source optical coherence tomography (SS-OCT) scans.

Setting: Rothschild Foundation, Paris, France.

Design: Prospective case series.

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Purpose: To assess a new objective cataract grading method based on lens densitometry on swept-source optical coherence tomography (SS-OCT) scans provided by the IOLMaster 700.

Settings: Rothschild Foundation, Paris, France.

Design: Prospective case series.

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Purpose: To assess the repeatability of the corneal topography functions of Orbscan II (Bausch & Lomb, Rochester, NY), OPD-Scan III (Nidek, Gamagori, Japan), and iTrace (Tracey Technologies, Houston, TX) in keratoconic eyes and in a control group of normal patients.

Methods: In this prospective cohort study, patients were recruited between November 2011 and May 2012. Measurements were performed with a combined Placido-scanning slit system (Orbscan II) and two combined Placido-aberrometer systems (OPD-Scan III and iTrace).

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Purpose: To report and document a case of successful rainbow glare correction using undersurface ablation of the LASIK flap.

Methods: A 33-year-old woman was treated bilaterally for myopia using femtosecond laser-assisted LASIK with the FS200 femtosecond laser (Alcon Laboratories, Inc., Fort Worth, TX).

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Purpose: To report a case of rainbow glare following femtosecond laser-assisted LASIK (femto-LASIK) with the Wavelight FS-200 femtosecond laser (Alcon Laboratories, Inc., Fort Worth, TX).

Methods: A patient was treated bilaterally for myopia with femto-LASIK using the FS-200 femtosecond laser.

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We measured high-contrast visual acuity (VA) and 12c/deg contrast sensitivity (CS) through-focus functions (TFF) of four eyes of four cyclopleged subjects in three conditions: naked eye, with a center-distance and center-near Proclear(R) multifocal addition 2D contact lens. In all conditions, an adaptive optics system statically compensated the astigmatism of the subject's eye alone. Multifocal contact lenses enlarged the width of the curve of through-focus visual performance but reduced the peak performance.

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Purpose: The two objectives were 1) to measure visual acuity (VA) and contrast sensitivity (CS) losses induced by various amounts of individual Zernike aberrations, and 2) to examine the accuracy of image quality metrics in predicting these visual performance losses.

Methods: Monocular 10 cycles/degree (cpd) and 25 cpd CS and high- and low-contrast VA were measured when introducing individual Zernike aberrations in four patients dynamically corrected using a CRX1 adaptive optics system (Imagine Eyes) and a 5.5-mm pupil.

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