64 documents found, page 1 of 7
Wavefront sensing: A breakthrough for objective evaluation of dynamic accommoda...
Gomes, Jessica; Franco, SandraThe purpose of this study was to use wavefront sensing as an objective method to detect and assess dynamic accommodation in subjects with accommodative dysfunctions and symptoms related to near-vision tasks. Sixty-three subjects were divided into control (N = 18), symptomatic without any accommodative dysfunction (SWD) (N = 18), infacility of accommodation (INFA) (N = 6), excess of accommodation (EA) (N = 9), a...
Prevalence of near-vision-related symptoms in a university population
Gomes, Jessica; Franco, SandraThe university population has high visual demands. It is therefore important to assess the prevalence of symptoms in these subjects, which may affect their academic performance. In this cross-sectional study, a randomized sample of 252 subjects from a university answered the Convergence Insufficiency Symptom Survey (CISS) questionnaire. In addition, questions were asked about blurred vision during and after nea...
Recycling of natural and waste materials as supports for green silver nanoparti...
Rocha, Verónica Patrícia Moreira; Franco, Sandra; Bertão, Ana Raquel; Neves, Isabel C.; Tavares, T.The use of a sustainable technology to synthesize green silver nanoparticles (AgNP) from renewable resources is very appealing. Here, a green protocol for the production AgNP/composites is introduced, via in situ reduction of Ag+ ions on sustainable materials (clays and waste materials) using eucalyptus leaves extract (ELE) as a reducing and stabilizing agent, without the addition of any harmful or expensive or...
High-order aberrations: A key factor in accommodative dysfunctions
Gomes, Jessica; Franco, SandraThis study investigated the relationship between high-order aberrations (HOAs) and accommodative dysfunctions by analyzing their changes with accommodation. Understanding this relationship is important for understanding the mechanisms underlying these conditions. Sixtythree subjects were divided into five groups: control, infacility of accommodation (INFA), excess of accommodation (EA), insufficiency of accommo...
Wavefront sensing for objective assessment of vision therapy efficacy: prelimin...
Gomes, Jéssica Rafaela Moreira; Sapkota, Kishor; Franco, SandraThe aim of this study was to use wavefront sensing to objectively evaluate the effects of vision therapy in subjects with insufficiency (AI) and infacility of accommodation (AINF). Aberrometry was performed with a Shack-Hartmann wavefront aberrometer for different accommodative stimuli in one subject with AI and one with AINF before and after treatment with vision therapy (VT). A control subject received a plac...
Real-time wavefront aberrometry in subjects with accommodative excess
Gomes, Jessica; Sapkota, Kishor; Franco, SandraThe purpose of this study was to use real-time wavefront aberrometry to detect accommodative excess (AE) and to analyse the optical quality of the eye in subjects with this dysfunction. AE was detected from the accommodative response obtained by real-time wavefront aberrometry. These subjects had a significant accommodative lead to all stimuli and had difficulty relaxing accommodation. The root mean square (RMS...
Central and peripheral ocular high-order aberrations and their relationship wit...
Gomes, Jessica; Sapkota, Kishor; Franco, SandraHigh-order aberrations (HOAs) are optical defects that degrade the image quality. They change with factors such as pupil diameter, age, and accommodation. The changes in optical aberrations during accommodation are mainly due to lens shape and position changes. Primary spherical aberration (Z(4.0)) is closely related to accommodation and some studies suggested that it plays an important role in the control of a...
Spherical aberration and accommodative insufficiency: Is there a Link?
Gomes, Jessica; Sapkota, Kishor; Franco, SandraGiven the relationship between spherical aberrations and accommodation, the study of these aberrations can be helpful to understand accommodative response in subjects with accommodative dysfunctions. The purpose of this study was to evaluate on-axis and off-axis changes of primary and secondary spherical aberrations, Z(4,0) and Z(6,0), with accommodation in subjects with accommodative insufficiency (AI). Ten su...
PRÁXIS DOCENTE COM LEITURA LITERÁRIA: CONTRIBUIÇÕES PARA O DESENVOLVIMENTO E EM...
Klem, Suelen; Sanches, Gislaine; Balça, Ângela; Franco, SandraO artigo resulta de um trabalho realizado junto à disciplina de Educação, formação humana e práxis: implicações da Teoria Histórico-Cultural e da Pedagogia Histórico-Crítica para a Educação Escolar, do Programa de Pós-Graduação, nível de Mestrado em Educação, da Universidade Estadual de Londrina (UEL). O objetivo foi apresentar contribuições das práticas docentes em âmbito escolar, com vistas ao desenvolvimento...
Cross-cultural validation into portuguese of a questionnaire to assess computer...
Cantó-Sancho, Natalia; Linhares, João M. M.; Ronda-Pérez, Elena; Franco, Sandra; Perales, Esther; Seguí-Crespo, MarAs digital devices are increasingly used at work, valid and reliable tools are needed to assess their effect on visual health. This study aimed to translate, cross-culturally adapt, and validate the Computer Vision Syndrome Questionnaire (CVS-Q©) into Portuguese.; À medida que a utilização de equipamentos digitais no emprego aumenta, a avaliação do seu efeito na saúde visual necessita de ferramentas válidas e r...