0000000001313393

AUTHOR

Vicent Sanchis-jurado

showing 4 related works from this author

Effect of fixation target on the contrast sensitivity in the foveal and parafoveal area

2017

Purpose To determine the influence on the contrast sensitivity when the stimulus contains a fixation target in two retinal locations, foveal and parafoveal. Methods Four young adults with 0.0 logMar acuity participated in this study. The stimulus was based on vertical sinusoidal gratings masked by a circular (for foveal area) or a ring (for parafoveal area). To increase the luminance resolution of the display a bit-stealing technique was used. Four different sets of stimuli were generated, two for exploring the foveal sensitivity and two for the parafoveal area. The difference between the sets designed for the same area was the presence, or absence, of a fixation target (a white cross) in t…

genetic structuresQuantitative Biology - Neurons and CognitionFOS: Biological sciencesNeurons and Cognition (q-bio.NC)sense organseye diseases
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Changes in anterior chamber eye during accommodation as assessed using a Dual Scheimpflug system

2014

Purpose: To study the changes in anterior chamber depth (ACD), anterior chamber angle (ACA), and pupil diameter (PD) during accommodation. Methods: Eighty eyes of 80 subjects, aged 22 to 40 years, were included. The rotating Dual Scheimpflug and a Placido disc system (Galilei G4, Ziemer Ophthalmic Systems AG, Switzerland) was used to measure the changes in ACD, ACA, and PD during accommodation. ACD measurement was taken for the central zone and for 4 more positions, each in different orientation (nasal, superior, temporal and inferior), 4 mm away from the centre. ACA was measured for the whole eye as well for the nasal, superior, temporal, and inferior quadrants. These metrics were obtained…

AdultMalemedicine.medical_specialtyAnterior ChamberScheimpflug principlePupil diameterIrisVergenceDiagnostic Techniques OphthalmologicalPupilAnterior chamber angleNear visionAnterior chamber eyeYoung AdultOpticslcsh:OphthalmologyOphthalmologyPhotographyMedicineHumansskin and connective tissue diseasesPupilaAnterior chamberCâmara anteriorTécnicas medidas equipamentos de mediçãobusiness.industryAccommodation OcularPupilGeneral Medicineeye diseasesOphthalmologyAcomodação ocularlcsh:RE1-994Accommodation ocularTechniques measures measurement equipmentFemalesense organsbusinessAccommodationTomography Optical CoherenceArquivos Brasileiros de Oftalmologia
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How Do Different Digital Displays Affect the Ocular Surface?

2020

Digital display use has been accepted as a contributing factor to dry eye disease. Nowadays, plenty of new models of digital displays have been developed, and the differences in their nature and the ways in which they are set and used may contribute to differences in the eye-related problems they cause.This study aimed to analyze the differences in ocular surface, tear film, and visual fatigue parameters after reading on different digital displays, with and without initial instillation of artificial tears.Thirty-one healthy individuals ranging in age from 20 to 26 years (mean ± standard deviation, 21.26 ± 1.73 years) were included in this prospective clinical study. Subjects' ocular surface…

AdultMalemedicine.medical_specialtyClinical testsgenetic structuresmedicine.medical_treatmentAffect (psychology)Lubricant Eye Drops03 medical and health sciencesYoung Adult0302 clinical medicineOphthalmologySurveys and QuestionnairesMedicineHumansOcular Surface Disease IndexProspective Studiesbusiness.industryComputer vision syndromeOsmolar ConcentrationPupil sizemedicine.diseaseeye diseasesOphthalmologyArtificial tearsReadingComputers HandheldTears030221 ophthalmology & optometryProspective clinical studyDry Eye SyndromesFemalesense organsAsthenopiabusinessOcular surface030217 neurology & neurosurgeryOptometryOptometry and vision science : official publication of the American Academy of Optometry
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Changes in anterior chamber eye during accommodation as assessed using a Dual Scheimpflug system

2018

Purpose: To study the changes in anterior chamber depth (ACD), anterior chamber angle (ACA), and pupil diameter (PD) during accommodation. Methods: Eighty eyes of 80 subjects, aged 22 to 40 years, were included. The rotating Dual Scheimpflug and a Placido disc system (Galilei G4, Ziemer Ophthalmic Systems AG, Switzerland) was used to measure the changes in ACD, ACA, and PD during accommodation. ACD measurement was taken for the central zone and for 4 more positions, each in different orientation (nasal, superior, temporal and inferior), 4 mm away from the centre. ACA was measured for the whole eye as well for the nasal, superior, temporal, and inferior quadrants. These metrics were obtained…

sense organsskin and connective tissue diseaseseye diseases
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