1. Articles from Sahand Amir-Asgari

    1-6 of 6
    1. Evaluation of intra-operative aphakic axial eye length measurements using swept source optical coherence tomography

      Evaluation of intra-operative aphakic axial eye length measurements using swept source optical coherence tomography

      Purpose: Evaluation of intra-operative aphakic axial eye length (AL) measurements using swept source optical coherence tomography. Setting: Hanusch Hospital, Vienna, Austria. Design: Prospective single-center study. Methods: Patients scheduled for cataract surgery were measured using swept-source optical coherence tomography (ss-OCT, IOLMaster 700, Carl Zeiss Meditec AG, Jena, Germany) to assess the axial eye length. Intra-operatively, swept source optical coherence tomography (ss-OCT) measurements were performed with a prototype device (IOLMaster 700 connected to an OPMI Lumera 700 microscope, CZM) at the beginning of cataract surgery furthermore of the aphakic eye and 2 months after surgery. Results: Of the 59 eyes of 59 ...

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    2. Intraoperative optical coherence tomography measurements of aphakic eyes to predict postoperative position of 2 intraocular lens designs

      Intraoperative optical coherence tomography measurements of aphakic eyes to predict postoperative position of 2 intraocular lens designs

      Purpose To evaluate intraoperative anterior chamber depth (ACD) measurements of the aphakic eye to predict the postoperative ACD and compare 2 intraocular lens (IOL) designs. Setting Hanusch Hospital, Vienna, Austria. Design Prospective study. Methods In this prospective study, patients scheduled for cataract surgery received a plate-haptic IOL (Asphina, Carl Zeiss Meditec AG) or an open-loop haptic IOL (ZCB00, Johnson & Johnson). Preoperatively, optical biometry (IOLMaster 700, CZM, or Lenstar, Haag-Streit) was performed. Intraoperatively, a prototype setup was used to perform time-domain OCT scans of the anterior eye segment (Visante connected to OPMI Lumera 200, both CZM). The intraoperative ACD was measured ...

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    3. Using continuous intraoperative optical coherence tomography to classify swirling lens fragments during cataract surgery and to predict their impact on corneal endothelial cell damage

      Using continuous intraoperative optical coherence tomography to classify swirling lens fragments during cataract surgery and to predict their impact on corneal endothelial cell damage

      Purpose To quantify and classify swirling lens fragments during cataract surgery and record their impact on the corneal endothelium using continuous intraoperative optical coherence tomography (OCT). Setting Vienna Institute for Ocular Surgery, Hanusch Hospital, Vienna, Austria. Design Prospective case series. Methods Patients scheduled for cataract surgery without other ophthalmologic comorbidities were included. During surgery, continuous OCT recordings were performed to measure and score swirling lens fragments that came into contact with the corneal endothelium. Endothelial cell density (ECD) was measured preoperatively and 1 month postoperatively. In addition, the central corneal thickness and aqueous flare were measured preoperatively and 1 hour ...

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    4. Using continuous intraoperative optical coherence tomography measurements of the aphakic eye for intraocular lens power calculation

      Using continuous intraoperative optical coherence tomography measurements of the aphakic eye for intraocular lens power calculation

      Background/aims To include intraoperative measurements of the anterior lens capsule of the aphakic eye into the intraocular lens power calculation (IPC) process and to compare the refractive outcome with conventional IPC formulae. Methods In this prospective study, a prototype operating microscope with an integrated continuous optical coherence tomography (OCT) device (Visante attached to OPMI VISU 200, Carl Zeiss Meditec AG, Germany) was used to measure the anterior lens capsule position after implanting a capsular tension ring (CTR). Optical biometry (intraocular lens (IOL) Master 500) and ACMaster measurements (Carl Zeiss Meditec AG, Germany) were performed before surgery. Autorefraction and subjective ...

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    5. Predicting the Postoperative Intraocular Lens Position Using Continuous Intraoperative Optical Coherence Tomography Measurements

      Predicting the Postoperative Intraocular Lens Position Using Continuous Intraoperative Optical Coherence Tomography Measurements

      Purpose. The aim of this study was to assess, if measuring the position of the lens capsule intraoperatively with a continuous intraoperative optical coherence tomography (OCT) device could be useful to improve the prediction of the intraocular lens (IOL) position. Methods. This prospective study included patients who were scheduled for cataract surgery. A prototype operating microscope with an integrated continuous OCT device was used to measure the anterior and posterior lens capsule position at different time points during cataract surgery. In all cases, a capsular tension ring (CTR) was used to tauten the lens capsule. Partial coherence interferometry was used ...

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    6. Predicting the post-operative intraocular lens position using continuous intra-operative optical coherence tomography measurements

      Predicting the post-operative intraocular lens position using continuous intra-operative optical coherence tomography measurements

      Purpose: Aim of this study was to assess, if measuring the position of the lens capsule intra-operatively with a continuous intra-operative optical coherence tomography (OCT) device could be useful to improve the prediction of the IOL position. Methods: This prospective study included patients who were scheduled for cataract surgery. A prototype operating microscope with an integrated continuous OCT device (Visante attached to OPMI VISU 200, Carl Zeiss Meditec AG, Germany) was used to measure the anterior and posterior lens capsule position at different time points during cataract surgery. In all cases a capsular tension ring (CTR) was used to tauten ...

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    1-6 of 6
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