1. Carl Zeiss Meditec

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    1. Mentioned In 1324 Articles

    2. Anterior and Posterior Ocular Biometry in Healthy Chinese Subjects: Data Based on AS-OCT and SS-OCT

      Anterior and Posterior Ocular Biometry in Healthy Chinese Subjects: Data Based on AS-OCT and SS-OCT

      Background To measure the anterior and posterior ocular biometric characteristics concurrently and to determine the relationship between the iris and choroid in healthy Chinese subjects. Methods A total of 148 subjects (270 eyes) were enrolled in this cross-section study. The anterior and posterior ocular biometric characteristics were measured simultaneously by anterior segment optical coherence tomography (AS-OCT) and swept-source optical coherence tomography (SS-OCT). Results Compared with male eyes, female eyes had narrower anterior biometric parameters that presented with smaller anterior segment parameters [including anterior chamber depth (ACD), width (ACW), area (ACA), and volume (ACV); (all p<0.001)], narrower anterior chamber ...

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    3. Refractive Error and Ocular Parameters: Comparison of Two SD-OCT Systems

      Refractive Error and Ocular Parameters: Comparison of Two SD-OCT Systems

      Purpose: Spectral domain optical coherence tomography (OCT) was used to examine the influence of refractive error (RE) on foveal retinal and choroidal thicknesses and scleral canal width (SCW). The performance of the Cirrus and Bioptigen spectral domain OCT instruments was compared in the same eyes. Methods: Both eyes of 40 healthy human subjects, aged 22 to 38 years, were dilated and imaged, with the Cirrus OCT, using 6-mm five-line rasters collapsed into one line, one centered on the fovea and one bisecting the optic nerve head. Seventy-two of the same eyes were imaged with the Bioptigen OCT, using 6- by ...

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    4. Reproducibility of Spectral-Domain Optical Coherence Tomography RNFL Map for Glaucomatous and Fellow Normal Eyes in Unilateral Glaucoma

      Reproducibility of Spectral-Domain Optical Coherence Tomography RNFL Map for Glaucomatous and Fellow Normal Eyes in Unilateral Glaucoma

      Purpose: To compare the reproducibility of the optical coherence tomography (OCT) retinal nerve fiber layer (RNFL) thickness map between glaucomatous and fellow normal eyes of unilateral glaucoma patients. Methods: In this prospective case-control study, Cirrus HD-OCT was performed for 79 unilateral glaucoma patients 3 times on the first visit and on 3 subsequent visits within a 2-month period. Test-retest standard deviation (TRT-SD) and tolerance limit based on the 1.645×√2×TRT-SD formula were derived for RNFL thicknesses at the respective superpixels of the RNFL thickness map. Results: The TRT-SDs and tolerance limits of the glaucomatous eyes (TRT-SD: 2.75 ...

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    5. The relationship between structure and function as measured by OCT and Octopus perimetry

      The relationship between structure and function as measured by OCT and Octopus perimetry

      Background/aims To determine the structure–function relationship between equivalent visual field areas obtained with the Octopus perimeter (OP), and the peripapillary retinal nerve fibre layer (RNFL) thickness measured with spectral-domain optical coherence tomography (OCT) in healthy individuals and patients with glaucomatous optic neuropathy. Methods Eighty-eight normal subjects and 150 patients with open-angle glaucoma were prospectively recruited. Eligible participants for the glaucoma group were required to have elevated intraocular pressure and glaucomatous optic nerve head morphology. All participants underwent reliable automated perimetry with OP, and optic nerve head imaging with the Cirrus OCT. Principal component analysis of the mean threshold ...

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    6. Macular thickness assessed with spectral domain OCT in a population-based study of children: normative data, repeatability and reproducibility and comparison with time domain OCT

      Macular thickness assessed with spectral domain OCT in a population-based study of children: normative data, repeatability and reproducibility and comparison with time domain OCT

      Purpose To collect data on macular thickness assessed with Cirrus OCT in healthy children in a population-based study, to examine the repeatability and reproducibility, and to compare the values with Stratus OCT. Methods Fifty-eight 6- to 15-year-old children, born at term, were examined. Best-corrected visual acuity and refraction were assessed. One examiner performed three OCT assessments, and the repeatability was calculated. Thereafter, a second examiner repeated the examinations to calculate the reproducibility. One eye was randomized to be included in the normal material. Finally, the second examiner assessed the macular thickness with the Stratus OCT. Results The mean value (±SD ...

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    7. Comparison of retinal nerve fiber layer and macular thickness measurements with Stratus OCT and OPKO/ OTI OCT devices in healthy subjects

      Comparison of retinal nerve fiber layer and macular thickness measurements with Stratus OCT and OPKO/ OTI OCT devices in healthy subjects

      ·AIM: To compare retinal nerve fiber layer (RNFL) and macular thickness measurements obtained with the Stratus optical coherence tomography (OCT) and OPKO/OTI OCT devices. ·METHODS: Included in the study were 59 eyes of 30 participants. All measurements for each eye were done on the same day with both devices. Student's paired tests were used to compare the central macular thickness and RNFL measurements of the Stratus OCT and OPKO/OTI OCT. Pearson correlation was used to assess the relationship between the devices. Coefficient of variation (COV) was calculated to assess intersession repeatability. ·RESULTS: Using both the Stratus OCT ...

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    8. Comparative evaluation of time domain and spectral domain optical coherence tomography in retinal nerve fiber layer thickness measurements

      Comparative evaluation of time domain and spectral domain optical coherence tomography in retinal nerve fiber layer thickness measurements
      ...OCT) systems: the Stratus OCT, a time domain system, and the Cirrus HD-OCT, a spectral domain system (both by Carl Zeiss Meditec, Inc., Dublin, CA). Materials and methods: An observational cross-sectional study was carr...
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    9. Different Concentrations of Aqueous Cytokines According to Diabetic Macular Edema Patterns as Determined Optical Coherence Tomography

      Different Concentrations of Aqueous Cytokines According to Diabetic Macular Edema Patterns as Determined Optical Coherence Tomography

      Objective: To evaluate the relationship between various cytokine levels in aqueous humor and diabetic macular edema (DME) types as determined by optical coherence tomographic (OCT) patterns. Methods: The study examined 76 patients with DME at early phase. Ten patients who underwent cataract surgery served as controls. Eyes with DME were divided into four groups, based on OCT patterns of DME, prior to intravitreal bevacizumab injection (IVB). Patterns included sponge-like diffuse retinal thickening (SDRT) (n=27), cystoid macular edema (CME) (n=18), serous retinal detachment (SRD) (n=15), and combined CME and SRD (n=16). Visual acuity, central macular thickness (CMT ...

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    10. Detecting the Progression of Normal Tension Glaucoma: A Comparison of Perimetry, Optic Coherence Tomography, and Heidelberg Retinal Tomography

      Detecting the Progression of Normal Tension Glaucoma: A Comparison of Perimetry, Optic Coherence Tomography, and Heidelberg Retinal Tomography

      Purpose We compared the abilities of Stratus optical coherence tomography (OCT), Heidelberg retinal tomography (HRT) and standard automated perimetry (SAP) to detect the progression of normal tension glaucoma (NTG) in patients whose eyes displayed localized retinal nerve fiber layer (RNFL) defect enlargements. Methods One hundred four NTG patients were selected who met the selection criteria: a localized RNFL defect visible on red-free fundus photography, a minimum of five years of follow-up, and a minimum of five reliable SAP, Stratus OCT and HRT tests. Tests which detected progression at any visit during the 5-year follow-up were identified, and patients were further ...

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  2. About Carl Zeiss Meditec

    Carl Zeiss Meditec

    Carl Zeiss Meditec.  Ophthalmology Systems.  Carl Zeiss Meditec is an integrated medical technology company with two main areas of business activity.  In the field of ophthalmology we offer complete solutions for treating the four main eye ailments: vision defects (refraction), cataract, glaucoma and retinal disorders. Our products support doctors and patients to diagnose and treat these ailments efficiently and precisely, thus giving both of them clear benefits, not least by offering them a comprehensive disease management solution. The acquisition of Carl Zeiss Surgical has strengthened our leading market and competitive position for devices and systems in ophthalmic surgery.  Furthermore, we have secured an outstanding starting position in the growth market of neuro/ENT surgery. As the world‘s leading provider of surgical microscopes and visualisation solutions for these treatments, we will further expand our footprint in this area through organic growth and strategic expansion into adjacent market segments. In doing so, we want to develop into a solution provider in this area as well.  Carl Zeiss Meditec's medical technology portfolio is rounded off by innovative and promising future technologies such as intraoperative radiation therapy, which allows the targeted treatment of breast cancer and brain cancer during the operation stage itself.

  3. Quotes about Carl Zeiss Meditec

    1. I have come to rely on the Carl Zeiss Meditec brand for consistent and reliable technologies that are at the forefront of innovation and patient care.
      Ike K. Ahmed in Carl Zeiss Meditec Introduces New Suite of Ophthalmic Innovations
    2. Mr Taylor has been instrumental in making Meditec one of the leading companies in the field of ophthalmology in the past few years. My sincere thanks are due to him for his effort and dedication. I am pleased that Mr Taylor will continue to support us in the role of independent consultant and that we will be able to draw on his experience in future. Furthermore, I am convinced that we are ideally set with our current team to accelerate the proposed realisation of growth potential of Carl Zeiss Meditec.
      Michael Kaschke in Carl Zeiss Meditec reorganises management of its strategic business units
    3. Carl Zeiss Meditec received the highest overall Frost & Sullivan Competitive Metrics Score in the recently completed Strategic Analysis of Optical Imaging Technologies in U.S. Clinical Diagnostics Markets.
      In Frost & Sullivan Lauds Carl Zeiss Meditec for Dominating the OCT Market for Ophthalmic Applications