Results 11 to 20 of about 20,553,165 (134)

Novel Method of Remotely Monitoring the Face-Device Distance and Face Illuminance Using Mobile Devices: A Pilot Study

Journal of Ophthalmology, 2019
Specially developed software (app) was written for handheld electronic devices that uses the device camera and light detector for real-time monitoring of near-work distance and environmental lighting.
Rosa María Salmerón-Campillo, Mateusz Jaskulski, Sergio Lara-Cánovas, José Manuel González-Méijome, Norberto López-Gil   +4 more
doaj   +2 more sources

New Objective Refraction Metric Based on Sphere Fitting to the Wavefront

Journal of Ophthalmology, 2017
Purpose. To develop an objective refraction formula based on the ocular wavefront error (WFE) expressed in terms of Zernike coefficients and pupil radius, which would be an accurate predictor of subjective spherical equivalent (SE) for different pupil ...
Mateusz Jaskulski, Andreí Martínez-Finkelshtein, Norberto López-Gil   +2 more
doaj   +2 more sources

Subjective quasi-vector-based refraction with a conventional phoropter. [PDF]

Ophthalmic Physiol Opt
Abstract Purpose To introduce a novel methodology for subjective refraction based on power vectors with a conventional phoropter. Methods A conventional phoropter was used to measure power vector components of refraction (M, J0 and J45) directly by using the sphere power (for M measurement) and the cylinder power combined with the Jackson cross ...
Albero Moreno JR, Albarrán Diego C, Micó V.   +2 more
europepmc   +2 more sources

Fluholoscopy—Compact and Simple Platform Combining Fluorescence and Holographic Microscopy

Biosensors, 2023
The combination of different imaging modalities into single imaging platforms has a strong potential in biomedical sciences as it permits the analysis of complementary properties of the target sample.
David Alonso, Javier Garcia, Vicente Micó   +2 more
doaj   +1 more source

Desempeño Profesional en Cuba del Licenciado en Optometría y Óptica en el Manejo del Glaucoma

Optometría Clínica y Ciencias de la Visión, 2023
Relevancia: La importancia del mejoramiento del desempeño profesional en Cuba del licenciado en Optometría y Óptica en la atención del paciente con Glaucoma.
Inalvis Suárez Cuza, Aniuska Pérez Fernández, Ilena Laine Lominchar Agüero, Idalmis Martínez Palmer, Adisleidys Cuba Poll, Letisia Muñoz Alonso, Taimy León Vázquez   +6 more
doaj   +1 more source

Ojo seco y cirugía refractiva, estudio de red de citación

Revista Mexicana de Oftalmología, 2021
Objetivo: Identificar las conexiones entre los investigadores más citados y el impacto de autores, revistas y contenidos en el campo de ojo seco tras cirugía refractiva, para focalizar la futura investigación en ello.
Elena Fraga-Graells, Cristina Álvarez-Peregrina, César Villa-Collar, Miguel Ángel Sánchez-Tena   +3 more
doaj   +1 more source

Convergence insufficiency prevalence in attention deficit and hyperactivity disorder children depends on the diagnosis criteria. [PDF]

Ophthalmic Physiol Opt
Abstract Purpose Attention deficit and hyperactivity disorder (ADHD) is a neurodevelopmental condition commonly seen in children and adolescents, characterised by an increase in distractibility or inattention. Several studies have noted a higher rate of visual problems in this group, especially convergence insufficiency (CI), but when using different ...
Clavé L, Torrents A.
europepmc   +2 more sources

Subjective refraction using power vectors by updating a conventional phoropter with a Stokes lens for continuous astigmatic power generation

Ophthalmic and Physiological Optics, Volume 43, Issue 5, Page 1029-1039, September 2023., 2023
Abstract Purpose To implement a pure power vector method for monocular subjective refraction using a regular phoropter with the only modification being the inclusion of a Stokes lens. The proposed methodology was tested with three different Stokes lenses, and the results were compared with conventional clinical refraction procedures.
Jose Ricardo Albero Moreno, Vicente Micó, Cesar Albarrán Diego   +2 more
wiley   +1 more source

Theoretical performance of progressive addition lenses with poorly measured individual parameters

Ophthalmic and Physiological Optics, Volume 43, Issue 2, Page 244-253, March 2023., 2023
Abstract Purpose The aim of this paper was to present a theoretical study of how poorly measured individual parameters affect the optical performance of progressive addition lenses (PALs). Modern progressive lenses can be prescribed based on parameters such as vertex distance, pantoscopic and wrap angles.
Eduardo Pascual, José A. Gómez‐Pedrero, José Alonso   +2 more
wiley   +1 more source

Flexible 3D Printed Acrylic Composites based on Polyaniline/Multiwalled Carbon Nanotubes for Piezoresistive Pressure Sensors

Advanced Electronic Materials, Volume 8, Issue 12, December 2022., 2022
Novel Digital Light Processing‐3D printable conductive composites filled with polyaniline/multiwalled carbon nanotubes (PANI/MWCNT) are developed with clear advantages respect to single conducting fillers. Flexible acrylic composites with improved thermal and electrical properties are successfully printed. Above the electrical threshold, the composites
Goretti Arias‐Ferreiro, Aurora Lasagabáster‐Latorre, Ana Ares‐Pernas, M. Sonia Dopico‐García, N. Pereira, P. Costa, S. Lanceros‐Mendez, María‐José Abad   +7 more
wiley   +1 more source