Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/31247
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Martín-Montañez, Vicente | por |
dc.contributor.author | López-Miguel, Alberto | por |
dc.contributor.author | Arroyo, Cristina | por |
dc.contributor.author | Mateo, María E. | por |
dc.contributor.author | González-Méijome, José Manuel | por |
dc.contributor.author | Calonge, Margarita | por |
dc.contributor.author | González-García, María J. | por |
dc.date.accessioned | 2014-11-25T10:41:28Z | - |
dc.date.available | 2014-11-25T10:41:28Z | - |
dc.date.issued | 2014 | - |
dc.identifier | 1552-4973 | en_US |
dc.identifier.issn | 1552-4981 | por |
dc.identifier.uri | https://hdl.handle.net/1822/31247 | - |
dc.description.abstract | Purpose: To analyze in vitro the influence of different environmental conditions on the dehydration pattern of seven currently marketed hydrogel (Hy) and silicone hydrogel (Si-Hy) contact lenses (CL). Methods: Three Hy and four Si-Hy CLs were evaluated. CLs were exposed to four different relative humidity (RH) conditions (5%, 30%, 50%, and 70%) and two air flow (AF) rates (0 and 2.75 m/seg) within an environmental chamber. Dehydration was assessed using the gravimetric method. Data were taken at baseline, 5, 10, 15, 20, 30, 45, 60, 90, and 120 minutes of exposure. Dehydration rate (DR), valid dehydration (VD) and stabilization time were calculated. Results: The interaction between RH, AF and the type of the CL material had a significant effect (p 0.03) on DR up to 60 minutes. The maximum differences in VD values among CL occurred around 15 minutes exposure varying from 25.16% to 42.75%. Stabilization time was quicker under the 5%RH with AF condition than under 70% RH without AF one for most CLs. Conclusions: Lower RH seems to increase CL dehydration being further accelerated with the AF presence. The dehydration pattern is material dependent, thus current marketed CLs behave differently under several controlled environmental conditions. Future in vivo studies should confirm these outcomes. | por |
dc.description.sponsorship | The present study was partially supported by Junta Castilla y Leon (GR217 and VA145A11-2); by Junta de Castilla y Leon and European Social Fund (VA317-11); by Junta de Castilla y Leon and European Regional Development Fund (O22/12/VA/0112) and by Ministerio de Economia y Competitividad through Centro para el Desarrollo Tecnologico Industrial (IDI-2006-0676). | por |
dc.language.iso | eng | por |
dc.publisher | Wiley | por |
dc.rights | openAccess | por |
dc.subject | Contact lens | por |
dc.subject | Dehydration | por |
dc.subject | Relative humidity | por |
dc.subject | Air flow | por |
dc.subject | Environmental chamber | por |
dc.title | Influence of environmental factors in the in vitro dehydration of hydrogel and silicone hydrogel contact lenses | por |
dc.type | article | - |
dc.peerreviewed | yes | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 764 | por |
oaire.citationEndPage | 771 | por |
oaire.citationIssue | 4 | por |
oaire.citationTitle | Journal of Biomedical Materials Research Part B: Applied Biomaterials | por |
oaire.citationVolume | 102 | por |
dc.date.updated | 2014-11-24T15:55:24Z | - |
dc.identifier.doi | 10.1002/jbm.b.33057 | por |
dc.identifier.pmid | 24142398 | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Journal of Biomedical Materials Research: Part B | por |
Aparece nas coleções: | CDF - OCV - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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5.5.96. MARTIN-MONTAEZ_13_JBMR (Influence of environmental factors in the in vitro dehydration of).pdf | 376,33 kB | Adobe PDF | Ver/Abrir |