1. Articles from Robert Montes-Mico

    1-9 of 9
    1. Multisectorial changes in the ciliary muscle during accommodation measured with high-resolution optical coherence tomography

      Multisectorial changes in the ciliary muscle during accommodation measured with high-resolution optical coherence tomography

      Purpose: To measure changes in the anterior ciliary muscle during accommodation at the nasal, superior, temporal, and inferior sectors by means of an anterior chamber optical coherence tomographer, and correlate them with vergence changes. Methods: Twenty-four subjects with healthy, phakic eyes, whose mean age was 27.1 ± 8.9 years, underwent measurement with an anterior chamber optical coherence tomographer. The anterior ciliary muscle was measured at the nasal, temporal, superior, and inferior sectors for 0, -1, -2, and -3 D of vergence. A linear model was used to assess the correlation of each eye parameter with the accommodative demand. Results ...

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    2. Effect of contact lenses on ocular biometric measurements based on swept-source optical coherence tomography

      Effect of contact lenses on ocular biometric measurements based on swept-source optical coherence tomography

      Purpose: To determine the reliability of sweptsource optical coherence tomography in cases in which soft contact lenses cannot be removed when acquiring biometric measurements. Methods: Eight subjects were included and only one eye per participant was analyzed. Each eye was measured six times by swept-source optical coherence tomography with the IOLMaster 700 instrument (Carl Zeiss Meditec, Jena, Germany). Axial length, central corneal thickness, anterior chamber depth, lens thickness, and keratometric measurements were evaluated for the naked eye and while wearing soft contact lenses of three different powers (-1.5, -3.0, and +2.0 D). Results: There were statistically significant ...

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    3. Evaluation of the iridocorneal angle with accommodation using optical coherence tomography

      Evaluation of the iridocorneal angle with accommodation using optical coherence tomography

      The changes in the iridocorneal angle structure during accommodation are assessed by means of anterior segment optical coherence tomography. Thirteen right eyes were included in the study. The device used for the measurement was the Visante® omni system. The stimuli were set up at different vergences (0.0 D, -1.5 D, and -3.0 D). The angle opening distance 500 and 750, the trabecular iris space area 500 and 750, and the scleral spur angle parameters were assessed at the nasal and temporal regions. The results in the iridotrabecular angle comparing the three accommodative states of the eye did ...

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    4. Ocular anatomic changes for different accommodative demands using swept-source optical coherence tomography: a pilot study

      Ocular anatomic changes for different accommodative demands using swept-source optical coherence tomography: a pilot study

      Purpose The purpose of our study was to assess the changes in ocular parameters for different accommodative demands using a new optical biometer based on swept-source optical coherence tomography (SS-OCT). Methods Seven subjects were included in this pilot study, and only one eye per participant was analyzed. Each eye was measured six times with the optical biometer IOLMaster 700 (Carl Zeiss Meditec, Jena, Germany). As this instrument is not able to change the vergence of the stimulus, to enable measurements at different accommodative states, a tilted first-surface mirror attached to the optical biometer was used to place the fixation stimulus ...

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    5. Evaluating tear clearance rate with optical coherence tomography

      Evaluating tear clearance rate with optical coherence tomography

      To assess the early-phase of tear clearance rate (TCR) with anterior segment optical coherence tomography (OCT) and to determine the association between TCR and other clinical measures of the tear film in a group of young subjects with different levels of tear film quality. Methods TCR was classified as the percentage decrease of subject’s inferior tear meniscus height 30 s after instillation of 5 μl 0.9% saline solution. Fifty subjects (32F and 18M) aged (mean ± standard deviation) 25.5 ± 4.3 years volunteered for the study. It consisted of a review of medical history, Ocular Surface Disease Index ...

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    6. Anterior segment imaging using non-invasive high-resolution optical coherence tomography

      Anterior segment imaging using non-invasive high-resolution optical coherence tomography

      One of the most important developments in the ophthalmology and visual sciences field has been the application of new techniques for imaging the anterior and posterior segment of the eye with non-contact devices. These techniques have been developed quickly considering that are non-invasive and provide high-resolution images of the different parts of the human eye. Definitely, the most spread and used technique for non-contact imaging of the human eye is the optical coherence tomography (OCT). OCT technique was first demonstrated in 1991 by Huang et al . (1). Based on low-coherence interferometry, OCT has become a prominent biomedical imaging technique with ...

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    7. Comparison of two artificial tear formulations for dry eye through high-resolution optical coherence tomography

      Comparison of two artificial tear formulations for dry eye through high-resolution optical coherence tomography
      Purpose:  The aim was to determine the efficacy of two artificial eye-drop formulations by analysing the lower tear film meniscus volume through a commercial high-resolution spectral-domain optical coherence tomographer. Methods:  Twenty dry eye patients (12 men, eight women, aged 57.5 ± 8.4 years) with refractive errors from -2.50 to +0.75 D (mean -1.34 ± 1.02 D) and cylinders lower than 1.00 D were examined. Tear meniscus volume was measured before, immediately after and 10, 30 and 60 minutes after instillation using the Copernicus high-resolution spectral-domain optical coherence tomographer (Optopol Tech SA, Zawiercie, Poland). Volume was ...
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    8. Objective vs Subjective Vault Measurement After Myopic Implantable Collamer Lens Implantation

      Purpose: To evaluate the relationship between subjective measurements of vault and objective values measured with Visante optical coherence tomography (OCT) in eyes receiving an implantable contact lens (ICL) for myopia correction.Design: Observational cross-sectional study.Methods: setting: Fernández-Vega Ophthalmological Institute, Oviedo, Spain. patients: Four hundred and fifty-two eyes from 246 patients were elected to be implanted with a Visian ICL V4 (STAAR Surgical Inc, Monrovia, California, USA). observation procedures: Subjective and objective measurements of vault after implantation of ICL. main outcome measures: Subjective vault classified in 5 levels assessed using an optical section during slit-lamp examination. Objective vault was measured ...
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    9. Intraocular lens centration and stability: efficacy of current technique and technology.

      Purpose of review: The manuscript presents a review of recently published studies analyzing different methodologies to assess centration and stability of intraocular lenses after implantation. Recent findings: Considering that there is no current gold standard for centration and stability of intraocular lenses after implantation, we have summarized the different techniques used clinically for intraocular lenses centration and stability estimation. We have described the use of Scheimpflug imaging, the anterior segment optical coherence tomography and photography analysis used for lens position estimation. Techniques used to assess lens rotation are based on image analysis on digital retroillumination images. Summary: Centration and stability ...
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    1-9 of 9
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    1. (3 articles) University of Valencia
    2. (3 articles) Carl Zeiss Meditec
    3. (2 articles) Zeiss Visante OCT
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    Comparison of two artificial tear formulations for dry eye through high-resolution optical coherence tomography Anterior segment imaging using non-invasive high-resolution optical coherence tomography Evaluating tear clearance rate with optical coherence tomography Ocular anatomic changes for different accommodative demands using swept-source optical coherence tomography: a pilot study Evaluation of the iridocorneal angle with accommodation using optical coherence tomography Effect of contact lenses on ocular biometric measurements based on swept-source optical coherence tomography Multisectorial changes in the ciliary muscle during accommodation measured with high-resolution optical coherence tomography Duke University Engineering Professor Sina Farsiu Elected Fellow of the IEEE PhotoniCare Takes First Place at the 2019 HealthTECH Startup Competition Close Assessment and Testing for Chronic Graft Versus Host Disease, CATCH Study GaAs-Based InPBi Quantum Dots for High Efficiency Super-Luminescence Diodes Pearls and Pitfalls of Optical Coherence Tomography Angiography Image Interpretation