1 resultado para Pathological Conditions, Signs and Symptoms
em Repositório Científico do Instituto Politécnico de Lisboa - Portugal
Filtro por publicador
- ABACUS. Repositorio de Producción Científica - Universidad Europea (1)
- AMS Tesi di Dottorato - Alm@DL - Università di Bologna (12)
- Aquatic Commons (8)
- ArchiMeD - Elektronische Publikationen der Universität Mainz - Alemanha (1)
- Archive of European Integration (3)
- Archivo Digital para la Docencia y la Investigación - Repositorio Institucional de la Universidad del País Vasco (7)
- Aston University Research Archive (43)
- B-Digital - Universidade Fernando Pessoa - Portugal (8)
- Biblioteca de Teses e Dissertações da USP (2)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (40)
- Biblioteca Digital da Produção Intelectual da Universidade de São Paulo (BDPI/USP) (9)
- Biblioteca Digital de Teses e Dissertações Eletrônicas da UERJ (11)
- Bioline International (5)
- BORIS: Bern Open Repository and Information System - Berna - Suiça (92)
- Brock University, Canada (3)
- CaltechTHESIS (1)
- Cambridge University Engineering Department Publications Database (6)
- CentAUR: Central Archive University of Reading - UK (15)
- Centro Hospitalar do Porto (1)
- Chinese Academy of Sciences Institutional Repositories Grid Portal (21)
- Cochin University of Science & Technology (CUSAT), India (1)
- Comissão Econômica para a América Latina e o Caribe (CEPAL) (1)
- CORA - Cork Open Research Archive - University College Cork - Ireland (4)
- Dalarna University College Electronic Archive (4)
- Deakin Research Online - Australia (46)
- Digital Commons - Michigan Tech (1)
- Digital Commons @ DU | University of Denver Research (1)
- Digital Commons at Florida International University (5)
- DigitalCommons@The Texas Medical Center (12)
- DigitalCommons@University of Nebraska - Lincoln (1)
- DRUM (Digital Repository at the University of Maryland) (1)
- Duke University (8)
- eResearch Archive - Queensland Department of Agriculture; Fisheries and Forestry (5)
- Glasgow Theses Service (1)
- Greenwich Academic Literature Archive - UK (1)
- Harvard University (2)
- Helda - Digital Repository of University of Helsinki (25)
- Indian Institute of Science - Bangalore - Índia (12)
- Instituto Gulbenkian de Ciência (1)
- Instituto Nacional de Saúde de Portugal (1)
- Instituto Politécnico de Viseu (1)
- Instituto Politécnico do Porto, Portugal (2)
- Instituto Superior de Psicologia Aplicada - Lisboa (1)
- Lume - Repositório Digital da Universidade Federal do Rio Grande do Sul (3)
- National Center for Biotechnology Information - NCBI (4)
- Nottingham eTheses (1)
- Plymouth Marine Science Electronic Archive (PlyMSEA) (3)
- Portal de Revistas Científicas Complutenses - Espanha (3)
- Publishing Network for Geoscientific & Environmental Data (3)
- QSpace: Queen's University - Canada (1)
- QUB Research Portal - Research Directory and Institutional Repository for Queen's University Belfast (46)
- Queensland University of Technology - ePrints Archive (84)
- RCAAP - Repositório Científico de Acesso Aberto de Portugal (3)
- Repositório Científico da Universidade de Évora - Portugal (4)
- Repositório Científico do Instituto Politécnico de Lisboa - Portugal (1)
- Repositorio de la Universidad de Cuenca (2)
- Repositório do Centro Hospitalar de Lisboa Central, EPE - Centro Hospitalar de Lisboa Central, EPE, Portugal (2)
- Repositório Institucional da Universidade Estadual de São Paulo - UNESP (1)
- Repositório Institucional da Universidade Federal de São Paulo - UNIFESP (1)
- Repositório Institucional da Universidade Federal do Rio Grande do Norte (1)
- Repositório Institucional UNESP - Universidade Estadual Paulista "Julio de Mesquita Filho" (155)
- RUN (Repositório da Universidade Nova de Lisboa) - FCT (Faculdade de Cienecias e Technologia), Universidade Nova de Lisboa (UNL), Portugal (2)
- SAPIENTIA - Universidade do Algarve - Portugal (3)
- Scientific Open-access Literature Archive and Repository (4)
- South Carolina State Documents Depository (2)
- Universidad de Alicante (2)
- Universidad del Rosario, Colombia (10)
- Universidad Politécnica de Madrid (5)
- Universidade Complutense de Madrid (4)
- Universidade de Lisboa - Repositório Aberto (5)
- Universidade Federal do Pará (12)
- Universidade Federal do Rio Grande do Norte (UFRN) (13)
- Universidade Metodista de São Paulo (5)
- Universitat de Girona, Spain (2)
- Université de Lausanne, Switzerland (4)
- Université de Montréal (2)
- Université de Montréal, Canada (4)
- University of Michigan (25)
- University of Queensland eSpace - Australia (13)
- University of Washington (2)
- WestminsterResearch - UK (2)
Resumo:
The aim of this study is to evaluate lighting conditions and speleologists’ visual performance using optical filters when exposed to the lighting conditions of cave environments. A crosssectional study was conducted. Twenty-three speleologists were submitted to an evaluation of visual function in a clinical lab. An examination of visual acuity, contrast sensitivity, stereoacuity and flashlight illuminance levels was also performed in 16 of the 23 speleologists at two caves deprived of natural lightning. Two organic filters (450 nm and 550 nm) were used to compare visual function with and without filters. The mean age of the speleologists was 40.65 (± 10.93) years. We detected 26.1% participants with visual impairment of which refractive error (17.4%) was the major cause. In the cave environment the majority of the speleologists used a head flashlight with a mean illuminance of 451.0 ± 305.7 lux. Binocular visual acuity (BVA) was -0.05 ± 0.15 LogMAR (20/18). BVA for distance without filter was not statistically different from BVA with 550 nm or 450 nm filters (p = 0.093). Significant improved contrast sensitivity was observed with 450 nm filters for 6 cpd (p = 0.034) and 18 cpd (p = 0.026) spatial frequencies. There were no signs and symptoms of visual pathologies related to cave exposure. Illuminance levels were adequate to the majority of the activities performed. The enhancement in contrast sensitivity with filters could potentially improve tasks related with the activities performed in the cave.