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Pujol Ramo Jaume - One of the best experts on this subject based on the ideXlab platform.

  • Nuevo sistema de doble-paso compacto con enfoque asimétrico
    'Sociedad Espanola de Optica', 2018
    Co-Authors: Giner Tort Anna, Arjona Carbonell, Mª Montserrat, Díaz Douton Fernando, Aldaba Arévalo Mikel, García Guerra, Carlos Enrique, Sanabria Ortega, Fernando Guillermo, Pujol Ramo Jaume
    Abstract:

    Every day more people are using Multifocal systems to correct presbyopia, as for example contact Lenses or intraocular Lenses. As a consequence, the necessity to do an appropriate characterization of their optical quality has increased. Due to this situation, the main purpose of this project has been to develop a new compact open-field double-pass system with asymmetric focus that characterizes objectively in vivo the optical quality of Multifocal systems that are adapted or implanted in the eye. As a preliminary study, one diffractive and one refractive Multifocal Lens were implanted in a wet customized model-eye and characterized by this new set-up. Regarding the asymmetric focus of the set-up, a through-focus from +0.75 to -4.00D in steps of 0.25D was performed in the second pass for each tested Lens,while the optical power of the first pass remained fixed. Results show that it is possible to distinguish, characterize the different foci of the measured Multifocal intraocular Lenses implanted in the model eye, and evaluate the optical quality of the system composed by the eye + the Multifocal element. Therefore, it has been concluded that this new compact open-field double-pass system with asymmetric focus is suitable to evaluate the optical quality of Multifocal systems adapted or implanted in the eye.Cada día más personas usan elementos ópticos Multifocales para corregir la presbicia, por ejemplo una lente de contacto o una lente intraocular. En consecuencia, la necesidad de evaluar la calidad óptica del ojo con un elemento corrector Multifocal ha adquirido una gran importancia. Dada esta situación, el principal objetivo de este proyecto ha sido desarrollar un nuevo sistema compacto basado en la técnica de doble-paso con enfoque asimétrico capaz de realizar una caracterización objetiva e “in vivo” de la calidad óptica del conjunto ojo-elemento óptico Multifocal. En este estudio preliminar se han empleado dos lentes intraoculares Multifocales, una difractiva y otra refractiva,implantadas en un ojo artificial. Al ser un sistema con enfoque asimétrico, se utilizó el segundo paso para realizar un barrido desde +0.75 a -4.00D en pasos de 0.25 D manteniendo el primer paso fijo. Los resultados han mostrado que es posible hallar y diferenciar los dos planos de enfoque, lejano y cercano, de las lentes intraoculares Multifocales implantadas en el ojo artificial y evaluar la calidad óptica del conjunto ojoelemento Multifocal. Por tanto, se ha demostrado la viabilidad de este nuevo sistema compacto de doble-paso con enfoque asimétrico para caracterizar la calidad óptica de un ojo con un elemento óptico Multifocal.Postprint (published version

  • Nuevo sistema de doble-paso compacto con enfoque asimétrico
    'Sociedad Espanola de Optica', 2018
    Co-Authors: Giner Tort Anna, Arjona Carbonell, Mª Montserrat, Díaz Douton Fernando, Aldaba Arévalo Mikel, García Guerra, Carlos Enrique, Sanabria Ortega, Fernando Guillermo, Pujol Ramo Jaume
    Abstract:

    Every day more people are using Multifocal systems to correct presbyopia, as for example contact Lenses or intraocular Lenses. As a consequence, the necessity to do an appropriate characterization of their optical quality has increased. Due to this situation, the main purpose of this project has been to develop a new compact open-field double-pass system with asymmetric focus that characterizes objectively in vivo the optical quality of Multifocal systems that are adapted or implanted in the eye. As a preliminary study, one diffractive and one refractive Multifocal Lens were implanted in a wet customized model-eye and characterized by this new set-up. Regarding the asymmetric focus of the set-up, a through-focus from +0.75 to -4.00D in steps of 0.25D was performed in the second pass for each tested Lens,while the optical power of the first pass remained fixed. Results show that it is possible to distinguish, characterize the different foci of the measured Multifocal intraocular Lenses implanted in the model eye, and evaluate the optical quality of the system composed by the eye + the Multifocal element. Therefore, it has been concluded that this new compact open-field double-pass system with asymmetric focus is suitable to evaluate the optical quality of Multifocal systems adapted or implanted in the eye.Cada día más personas usan elementos ópticos Multifocales para corregir la presbicia, por ejemplo una lente de contacto o una lente intraocular. En consecuencia, la necesidad de evaluar la calidad óptica del ojo con un elemento corrector Multifocal ha adquirido una gran importancia. Dada esta situación, el principal objetivo de este proyecto ha sido desarrollar un nuevo sistema compacto basado en la técnica de doble-paso con enfoque asimétrico capaz de realizar una caracterización objetiva e “in vivo” de la calidad óptica del conjunto ojo-elemento óptico Multifocal. En este estudio preliminar se han empleado dos lentes intraoculares Multifocales, una difractiva y otra refractiva,implantadas en un ojo artificial. Al ser un sistema con enfoque asimétrico, se utilizó el segundo paso para realizar un barrido desde +0.75 a -4.00D en pasos de 0.25 D manteniendo el primer paso fijo. Los resultados han mostrado que es posible hallar y diferenciar los dos planos de enfoque, lejano y cercano, de las lentes intraoculares Multifocales implantadas en el ojo artificial y evaluar la calidad óptica del conjunto ojoelemento Multifocal. Por tanto, se ha demostrado la viabilidad de este nuevo sistema compacto de doble-paso con enfoque asimétrico para caracterizar la calidad óptica de un ojo con un elemento óptico Multifocal

Martina Pelouskova - One of the best experts on this subject based on the ideXlab platform.

  • piggyback intraocular Lens implantation to correct pseudophakic refractive error after segmental Multifocal intraocular Lens implantation
    Journal of Refractive Surgery, 2014
    Co-Authors: Jan A Venter, Andre Oberholster, Steven C Schallhorn, Martina Pelouskova
    Abstract:

    PURPOSE To evaluate refractive and visual outcomes of secondary piggyback intraocular Lens implantation in patients diagnosed as having residual ametropia following segmental Multifocal Lens implantation. METHODS Data of 80 pseudophakic eyes with ametropia that underwent Sulcoflex aspheric 653L intraocular Lens implantation (Rayner Intraocular Lenses Ltd., East Sussex, United Kingdom) to correct residual refractive error were analyzed. All eyes previously had in-the-bag zonal refractive Multifocal intraocular Lens implantation (Lentis Mplus MF30, models LS-312 and LS-313; Oculentis GmbH, Berlin, Germany) and required residual refractive error correction. Outcome measurements included uncorrected distance visual acuity, corrected distance visual acuity, uncorrected near visual acuity, distance-corrected near visual acuity, manifest refraction, and complications. One-year data are presented in this study. RESULTS The mean spherical equivalent ranged from -1.75 to +3.25 diopters (D) preoperatively (mean: +0.58 ± 1.15 D) and reduced to -1.25 to +0.50 D (mean: -0.14 ± 0.28 D; P < .01). Postoperatively, 93.8% of eyes were within ±0.50 D and 98.8% were within ±1.00 D of emmetropia. The mean uncorrected distance visual acuity improved significantly from 0.28 ± 0.16 to 0.01 ± 0.10 logMAR and 78.8% of eyes achieved 6/6 (Snellen 20/20) or better postoperatively. The mean uncorrected near visual acuity changed from 0.43 ± 0.28 to 0.19 ± 0.15 logMAR. There was no significant change in corrected distance visual acuity or distance-corrected near visual acuity. No serious intraoperative or postoperative complications requiring secondary intraocular Lens removal occurred. CONCLUSIONS Sulcoflex Lenses proved to be a predictable and safe option for correcting residual refractive error in patients diagnosed as having pseudophakia.

Giner Tort Anna - One of the best experts on this subject based on the ideXlab platform.

  • Nuevo sistema de doble-paso compacto con enfoque asimétrico
    'Sociedad Espanola de Optica', 2018
    Co-Authors: Giner Tort Anna, Arjona Carbonell, Mª Montserrat, Díaz Douton Fernando, Aldaba Arévalo Mikel, García Guerra, Carlos Enrique, Sanabria Ortega, Fernando Guillermo, Pujol Ramo Jaume
    Abstract:

    Every day more people are using Multifocal systems to correct presbyopia, as for example contact Lenses or intraocular Lenses. As a consequence, the necessity to do an appropriate characterization of their optical quality has increased. Due to this situation, the main purpose of this project has been to develop a new compact open-field double-pass system with asymmetric focus that characterizes objectively in vivo the optical quality of Multifocal systems that are adapted or implanted in the eye. As a preliminary study, one diffractive and one refractive Multifocal Lens were implanted in a wet customized model-eye and characterized by this new set-up. Regarding the asymmetric focus of the set-up, a through-focus from +0.75 to -4.00D in steps of 0.25D was performed in the second pass for each tested Lens,while the optical power of the first pass remained fixed. Results show that it is possible to distinguish, characterize the different foci of the measured Multifocal intraocular Lenses implanted in the model eye, and evaluate the optical quality of the system composed by the eye + the Multifocal element. Therefore, it has been concluded that this new compact open-field double-pass system with asymmetric focus is suitable to evaluate the optical quality of Multifocal systems adapted or implanted in the eye.Cada día más personas usan elementos ópticos Multifocales para corregir la presbicia, por ejemplo una lente de contacto o una lente intraocular. En consecuencia, la necesidad de evaluar la calidad óptica del ojo con un elemento corrector Multifocal ha adquirido una gran importancia. Dada esta situación, el principal objetivo de este proyecto ha sido desarrollar un nuevo sistema compacto basado en la técnica de doble-paso con enfoque asimétrico capaz de realizar una caracterización objetiva e “in vivo” de la calidad óptica del conjunto ojo-elemento óptico Multifocal. En este estudio preliminar se han empleado dos lentes intraoculares Multifocales, una difractiva y otra refractiva,implantadas en un ojo artificial. Al ser un sistema con enfoque asimétrico, se utilizó el segundo paso para realizar un barrido desde +0.75 a -4.00D en pasos de 0.25 D manteniendo el primer paso fijo. Los resultados han mostrado que es posible hallar y diferenciar los dos planos de enfoque, lejano y cercano, de las lentes intraoculares Multifocales implantadas en el ojo artificial y evaluar la calidad óptica del conjunto ojoelemento Multifocal. Por tanto, se ha demostrado la viabilidad de este nuevo sistema compacto de doble-paso con enfoque asimétrico para caracterizar la calidad óptica de un ojo con un elemento óptico Multifocal.Postprint (published version

  • Nuevo sistema de doble-paso compacto con enfoque asimétrico
    'Sociedad Espanola de Optica', 2018
    Co-Authors: Giner Tort Anna, Arjona Carbonell, Mª Montserrat, Díaz Douton Fernando, Aldaba Arévalo Mikel, García Guerra, Carlos Enrique, Sanabria Ortega, Fernando Guillermo, Pujol Ramo Jaume
    Abstract:

    Every day more people are using Multifocal systems to correct presbyopia, as for example contact Lenses or intraocular Lenses. As a consequence, the necessity to do an appropriate characterization of their optical quality has increased. Due to this situation, the main purpose of this project has been to develop a new compact open-field double-pass system with asymmetric focus that characterizes objectively in vivo the optical quality of Multifocal systems that are adapted or implanted in the eye. As a preliminary study, one diffractive and one refractive Multifocal Lens were implanted in a wet customized model-eye and characterized by this new set-up. Regarding the asymmetric focus of the set-up, a through-focus from +0.75 to -4.00D in steps of 0.25D was performed in the second pass for each tested Lens,while the optical power of the first pass remained fixed. Results show that it is possible to distinguish, characterize the different foci of the measured Multifocal intraocular Lenses implanted in the model eye, and evaluate the optical quality of the system composed by the eye + the Multifocal element. Therefore, it has been concluded that this new compact open-field double-pass system with asymmetric focus is suitable to evaluate the optical quality of Multifocal systems adapted or implanted in the eye.Cada día más personas usan elementos ópticos Multifocales para corregir la presbicia, por ejemplo una lente de contacto o una lente intraocular. En consecuencia, la necesidad de evaluar la calidad óptica del ojo con un elemento corrector Multifocal ha adquirido una gran importancia. Dada esta situación, el principal objetivo de este proyecto ha sido desarrollar un nuevo sistema compacto basado en la técnica de doble-paso con enfoque asimétrico capaz de realizar una caracterización objetiva e “in vivo” de la calidad óptica del conjunto ojo-elemento óptico Multifocal. En este estudio preliminar se han empleado dos lentes intraoculares Multifocales, una difractiva y otra refractiva,implantadas en un ojo artificial. Al ser un sistema con enfoque asimétrico, se utilizó el segundo paso para realizar un barrido desde +0.75 a -4.00D en pasos de 0.25 D manteniendo el primer paso fijo. Los resultados han mostrado que es posible hallar y diferenciar los dos planos de enfoque, lejano y cercano, de las lentes intraoculares Multifocales implantadas en el ojo artificial y evaluar la calidad óptica del conjunto ojoelemento Multifocal. Por tanto, se ha demostrado la viabilidad de este nuevo sistema compacto de doble-paso con enfoque asimétrico para caracterizar la calidad óptica de un ojo con un elemento óptico Multifocal

Jan A Venter - One of the best experts on this subject based on the ideXlab platform.

  • piggyback intraocular Lens implantation to correct pseudophakic refractive error after segmental Multifocal intraocular Lens implantation
    Journal of Refractive Surgery, 2014
    Co-Authors: Jan A Venter, Andre Oberholster, Steven C Schallhorn, Martina Pelouskova
    Abstract:

    PURPOSE To evaluate refractive and visual outcomes of secondary piggyback intraocular Lens implantation in patients diagnosed as having residual ametropia following segmental Multifocal Lens implantation. METHODS Data of 80 pseudophakic eyes with ametropia that underwent Sulcoflex aspheric 653L intraocular Lens implantation (Rayner Intraocular Lenses Ltd., East Sussex, United Kingdom) to correct residual refractive error were analyzed. All eyes previously had in-the-bag zonal refractive Multifocal intraocular Lens implantation (Lentis Mplus MF30, models LS-312 and LS-313; Oculentis GmbH, Berlin, Germany) and required residual refractive error correction. Outcome measurements included uncorrected distance visual acuity, corrected distance visual acuity, uncorrected near visual acuity, distance-corrected near visual acuity, manifest refraction, and complications. One-year data are presented in this study. RESULTS The mean spherical equivalent ranged from -1.75 to +3.25 diopters (D) preoperatively (mean: +0.58 ± 1.15 D) and reduced to -1.25 to +0.50 D (mean: -0.14 ± 0.28 D; P < .01). Postoperatively, 93.8% of eyes were within ±0.50 D and 98.8% were within ±1.00 D of emmetropia. The mean uncorrected distance visual acuity improved significantly from 0.28 ± 0.16 to 0.01 ± 0.10 logMAR and 78.8% of eyes achieved 6/6 (Snellen 20/20) or better postoperatively. The mean uncorrected near visual acuity changed from 0.43 ± 0.28 to 0.19 ± 0.15 logMAR. There was no significant change in corrected distance visual acuity or distance-corrected near visual acuity. No serious intraoperative or postoperative complications requiring secondary intraocular Lens removal occurred. CONCLUSIONS Sulcoflex Lenses proved to be a predictable and safe option for correcting residual refractive error in patients diagnosed as having pseudophakia.

Sanabria Ortega, Fernando Guillermo - One of the best experts on this subject based on the ideXlab platform.

  • Nuevo sistema de doble-paso compacto con enfoque asimétrico
    'Sociedad Espanola de Optica', 2018
    Co-Authors: Giner Tort Anna, Arjona Carbonell, Mª Montserrat, Díaz Douton Fernando, Aldaba Arévalo Mikel, García Guerra, Carlos Enrique, Sanabria Ortega, Fernando Guillermo, Pujol Ramo Jaume
    Abstract:

    Every day more people are using Multifocal systems to correct presbyopia, as for example contact Lenses or intraocular Lenses. As a consequence, the necessity to do an appropriate characterization of their optical quality has increased. Due to this situation, the main purpose of this project has been to develop a new compact open-field double-pass system with asymmetric focus that characterizes objectively in vivo the optical quality of Multifocal systems that are adapted or implanted in the eye. As a preliminary study, one diffractive and one refractive Multifocal Lens were implanted in a wet customized model-eye and characterized by this new set-up. Regarding the asymmetric focus of the set-up, a through-focus from +0.75 to -4.00D in steps of 0.25D was performed in the second pass for each tested Lens,while the optical power of the first pass remained fixed. Results show that it is possible to distinguish, characterize the different foci of the measured Multifocal intraocular Lenses implanted in the model eye, and evaluate the optical quality of the system composed by the eye + the Multifocal element. Therefore, it has been concluded that this new compact open-field double-pass system with asymmetric focus is suitable to evaluate the optical quality of Multifocal systems adapted or implanted in the eye.Cada día más personas usan elementos ópticos Multifocales para corregir la presbicia, por ejemplo una lente de contacto o una lente intraocular. En consecuencia, la necesidad de evaluar la calidad óptica del ojo con un elemento corrector Multifocal ha adquirido una gran importancia. Dada esta situación, el principal objetivo de este proyecto ha sido desarrollar un nuevo sistema compacto basado en la técnica de doble-paso con enfoque asimétrico capaz de realizar una caracterización objetiva e “in vivo” de la calidad óptica del conjunto ojo-elemento óptico Multifocal. En este estudio preliminar se han empleado dos lentes intraoculares Multifocales, una difractiva y otra refractiva,implantadas en un ojo artificial. Al ser un sistema con enfoque asimétrico, se utilizó el segundo paso para realizar un barrido desde +0.75 a -4.00D en pasos de 0.25 D manteniendo el primer paso fijo. Los resultados han mostrado que es posible hallar y diferenciar los dos planos de enfoque, lejano y cercano, de las lentes intraoculares Multifocales implantadas en el ojo artificial y evaluar la calidad óptica del conjunto ojoelemento Multifocal. Por tanto, se ha demostrado la viabilidad de este nuevo sistema compacto de doble-paso con enfoque asimétrico para caracterizar la calidad óptica de un ojo con un elemento óptico Multifocal.Postprint (published version

  • Nuevo sistema de doble-paso compacto con enfoque asimétrico
    'Sociedad Espanola de Optica', 2018
    Co-Authors: Giner Tort Anna, Arjona Carbonell, Mª Montserrat, Díaz Douton Fernando, Aldaba Arévalo Mikel, García Guerra, Carlos Enrique, Sanabria Ortega, Fernando Guillermo, Pujol Ramo Jaume
    Abstract:

    Every day more people are using Multifocal systems to correct presbyopia, as for example contact Lenses or intraocular Lenses. As a consequence, the necessity to do an appropriate characterization of their optical quality has increased. Due to this situation, the main purpose of this project has been to develop a new compact open-field double-pass system with asymmetric focus that characterizes objectively in vivo the optical quality of Multifocal systems that are adapted or implanted in the eye. As a preliminary study, one diffractive and one refractive Multifocal Lens were implanted in a wet customized model-eye and characterized by this new set-up. Regarding the asymmetric focus of the set-up, a through-focus from +0.75 to -4.00D in steps of 0.25D was performed in the second pass for each tested Lens,while the optical power of the first pass remained fixed. Results show that it is possible to distinguish, characterize the different foci of the measured Multifocal intraocular Lenses implanted in the model eye, and evaluate the optical quality of the system composed by the eye + the Multifocal element. Therefore, it has been concluded that this new compact open-field double-pass system with asymmetric focus is suitable to evaluate the optical quality of Multifocal systems adapted or implanted in the eye.Cada día más personas usan elementos ópticos Multifocales para corregir la presbicia, por ejemplo una lente de contacto o una lente intraocular. En consecuencia, la necesidad de evaluar la calidad óptica del ojo con un elemento corrector Multifocal ha adquirido una gran importancia. Dada esta situación, el principal objetivo de este proyecto ha sido desarrollar un nuevo sistema compacto basado en la técnica de doble-paso con enfoque asimétrico capaz de realizar una caracterización objetiva e “in vivo” de la calidad óptica del conjunto ojo-elemento óptico Multifocal. En este estudio preliminar se han empleado dos lentes intraoculares Multifocales, una difractiva y otra refractiva,implantadas en un ojo artificial. Al ser un sistema con enfoque asimétrico, se utilizó el segundo paso para realizar un barrido desde +0.75 a -4.00D en pasos de 0.25 D manteniendo el primer paso fijo. Los resultados han mostrado que es posible hallar y diferenciar los dos planos de enfoque, lejano y cercano, de las lentes intraoculares Multifocales implantadas en el ojo artificial y evaluar la calidad óptica del conjunto ojoelemento Multifocal. Por tanto, se ha demostrado la viabilidad de este nuevo sistema compacto de doble-paso con enfoque asimétrico para caracterizar la calidad óptica de un ojo con un elemento óptico Multifocal