1. Articles from Colm McAlinden

    1-5 of 5
    1. Comprehensive Comparison of Axial Length Measurement With Three Swept-Source OCT-Based Biometers and Partial Coherence Interferometry

      Comprehensive Comparison of Axial Length Measurement With Three Swept-Source OCT-Based Biometers and Partial Coherence Interferometry

      PURPOSE: To compare axial length measurements (and failure rate) of three swept-source optical coherence tomography (SS-OCT)–based biometers: IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany), OA-2000 (Tomey, Nagoya, Japan), and Argos (Movu Inc., Komaki, Japan) to those provided by a partial coherence interferometry (PCI)–based optical biometer (IOLMaster v5.4 [Carl Zeiss Meditec]). METHODS: A total of 119 patients (171 eyes) undergoing cataract surgery were enrolled. Axial length was measured with the four biometers in a random order. Chi-square analysis was used to determine whether statistically significant differences in success rates were found between biometers. Within-subject standard deviation (S w ...

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    2. Precision of a new ocular biometer in eyes with cataract using swept source optical coherence tomography combined with Placido-disk corneal topography

      Precision of a new ocular biometer in eyes with cataract using swept source optical coherence tomography combined with Placido-disk corneal topography

      The present study was to assess the precision (repeatability and reproducibility) of a new optical biometer (OA-2000, Tomey, Japan) based on swept-source optical coherence tomography (SS-OCT) and Placido disk topography in eyes with cataracts. Seventy-eight eyes from seventy-eight patients with cataracts were evaluated. Axial length (AL), anterior chamber depth (ACD), keratometry (K) over a 2.5 mm and 3.0 mm diameter, lens thickness (LT), central corneal thickness (CCT) and white-to-white (WTW) distance were measured by 2 skilled operators. OA-2000 measurements were highly repeatable and reproducible for all parameters (intraclass correlation, 0.925 to 1.000). OA-2000 derived K-values with ...

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    3. Axial length measurement failure rates with biometers using swept source optical coherence tomography compared to partial coherence interferometry and optical low-coherence interferometry

      Axial length measurement failure rates with biometers using swept source optical coherence tomography compared to partial coherence interferometry and optical low-coherence interferometry

      Purpose To compare a new swept source optical coherence tomography (SS-OCT) based biometer (OA-2000) with the IOLMaster v5.4 (partial coherence interferometry) and Aladdin (optical low-coherence interferometry) biometers in terms of axial length measurement and failure rate in eyes with cataract. Design Reliability study Methods A total of 377 eyes of 210 patients were scanned with the three biometers in a random order. For each biometer, the number of unobtainable axial length measurements was recorded and grouped as per the type and severity of cataract based on the Lens Opacities Classification System III by the same experienced ophthalmologist. The Bland-Altman ...

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    4. Scheimpflug–Placido topographer and optical low-coherence reflectometry biometer: Repeatability and agreement

      Scheimpflug–Placido topographer and optical low-coherence reflectometry biometer: Repeatability and agreement

      Purpose To assess the repeatability of common measurements with the Sirius Scheimpflug–Placido topographer and Lenstar LS900 optical low-coherence reflectometry (OLCR) biometer and the limits of agreement (LoA) between the devices. Setting Eye Hospital of Wenzhou Medical College, Wenzhou, China. Design Comparative evaluation of a diagnostic test or technology. Methods One randomly healthy eye of subjects was scanned 3 times with both devices. The parameters assessed were central corneal thickness (CCT), anterior chamber depth (ACD) from the corneal epithelium and from the endothelium, mean keratometry (K), and white-to-white (WTW) corneal diameter. The repeatability of scans was calculated using the within-subject ...

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    5. Optical coherence tomography measurements with the LENTIS Mplus multifocal intraocular lens

      Optical coherence tomography measurements with the LENTIS Mplus multifocal intraocular lens
      Abstract Background  To investigate optical coherence tomography (OCT) measurements following implantation of the LENTIS Mplus multifocal IOL, compared with a control group. Methods  OCT scans were performed on 50 eyes with the Topcon 3D OCT-1000 in two groups of patients. The first group consisted of patients following implantation of the LENTIS Mplus, and a second group of age-matched control eyes following implantation of a monofocal aspheric IOL. Macular thickness and macular volume values were compared between groups and assessment for any onscreen visible artifacts. Results  OCT scans were successfully performed in all 50 eyes with no visible artifacts in either ...
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    1-5 of 5
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  2. Topics in the News

    1. (2 articles) Wenzhou Medical College
    2. (1 articles) University of Ulster
    3. (1 articles) Giacomo Savini
    4. (1 articles) Topcon Medical Systems
    5. (1 articles) Movu
    6. (1 articles) Tomey Corporation
    7. (1 articles) Carl Zeiss Meditec
    8. (1 articles) Harvard University
    9. (1 articles) Massachusetts General Hospital
    10. (1 articles) University of North Carolina
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    12. (1 articles) Masamichi Takano
    13. (1 articles) Joel S. Schuman
    14. (1 articles) Ik-Kyung Jang
    15. (1 articles) Yoshiyasu Minami
    16. (1 articles) Donald L. Budenz
    17. (1 articles) Gadi Wollstein
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    Optical coherence tomography measurements with the LENTIS Mplus multifocal intraocular lens Scheimpflug–Placido topographer and optical low-coherence reflectometry biometer: Repeatability and agreement Axial length measurement failure rates with biometers using swept source optical coherence tomography compared to partial coherence interferometry and optical low-coherence interferometry Precision of a new ocular biometer in eyes with cataract using swept source optical coherence tomography combined with Placido-disk corneal topography Comprehensive Comparison of Axial Length Measurement With Three Swept-Source OCT-Based Biometers and Partial Coherence Interferometry High space-bandwidth in quantitative phase imaging using partially spatially coherent optical coherence microscopy and deep neural network Optical coherence tomography assessment of macrophages accumulation in non-ST-segment elevation acute coronary syndromes Early disability in ambulatory patients with multiple sclerosis: optical coherence tomography versus visual evoked potentials, a comparative study Dueling Deep Q-Network for Unsupervised Inter-frame Eye Movement Correction in Optical Coherence Tomography Volumes Atlas of Optical Coherence Tomography for Glaucoma (Textbook) In-vivo analysis of iron-gold composite nanoparticles as potential exogenous contrast agents for Magnetomotive Optical Coherence Tomography (MMOCT) Automatic Classification of Volumetric Optical Coherence Tomography Images via Recurrent Neural Network