Cargando…

Contrast sensitivity function with soft contact lens wear

PURPOSES: To compare contrast sensitivity function (CSF) with soft contact lens (SCL) and spectacles wear. To investigate the effect of a three-month period of SCL wear on CSF. METHODS: Forty-seven myopic subjects with no history of contact lens (CL) wear were included in this longitudinal prospecti...

Descripción completa

Detalles Bibliográficos
Autores principales: Sapkota, Kishor, Franco, Sandra, Lira, Madalena
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Elsevier 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182777/
https://www.ncbi.nlm.nih.gov/pubmed/32063505
http://dx.doi.org/10.1016/j.optom.2020.01.002
_version_ 1783526297824133120
author Sapkota, Kishor
Franco, Sandra
Lira, Madalena
author_facet Sapkota, Kishor
Franco, Sandra
Lira, Madalena
author_sort Sapkota, Kishor
collection PubMed
description PURPOSES: To compare contrast sensitivity function (CSF) with soft contact lens (SCL) and spectacles wear. To investigate the effect of a three-month period of SCL wear on CSF. METHODS: Forty-seven myopic subjects with no history of contact lens (CL) wear were included in this longitudinal prospective study. CSF was measured with spectacles using the CSV-1000 (VectorVision, Greenvile, OH). Subsequently, subjects were fitted with a daily disposable lens (Nelfilcon-A, Stenofilcon-A or Nesofilcon-A) in one eye and a monthly disposable lens (Lotrafilcon-B, Comfilcon-A or Balafilcon-A) in the other eye and wore the same type of CLs for three months. CSF was measured again on the same day and after three months wearing CLs. Differences in CSF with spectacles and CLs on baseline and changes to CSF after three months of CLs wear were assessed. The effect of lens materials and wearing modality on CSF change was also investigated. RESULTS: CSF was higher with CLs in comparison to the values with spectacles for spatial frequencies of 3, 6 and 12 cycles per degree (cpd) (p < 0.05) while there was no difference for spatial frequency of 18 cpd (p = 0.114). No significant difference was found in the CSF with CLs between baseline and after three months of lens wear (p > 0.05). There was no difference in CSF between hydrogel and silicone CLs as well as when comparing daily with monthly wear CLs (p > 0.05). CONCLUSION: CSF is better with CLs than with spectacles. CSF values with CL are similar between baseline and after 3 months of lens wear.
format Online
Article
Text
id pubmed-7182777
institution National Center for Biotechnology Information
language English
publishDate 2020
publisher Elsevier
record_format MEDLINE/PubMed
spelling pubmed-71827772020-04-28 Contrast sensitivity function with soft contact lens wear Sapkota, Kishor Franco, Sandra Lira, Madalena J Optom Original article PURPOSES: To compare contrast sensitivity function (CSF) with soft contact lens (SCL) and spectacles wear. To investigate the effect of a three-month period of SCL wear on CSF. METHODS: Forty-seven myopic subjects with no history of contact lens (CL) wear were included in this longitudinal prospective study. CSF was measured with spectacles using the CSV-1000 (VectorVision, Greenvile, OH). Subsequently, subjects were fitted with a daily disposable lens (Nelfilcon-A, Stenofilcon-A or Nesofilcon-A) in one eye and a monthly disposable lens (Lotrafilcon-B, Comfilcon-A or Balafilcon-A) in the other eye and wore the same type of CLs for three months. CSF was measured again on the same day and after three months wearing CLs. Differences in CSF with spectacles and CLs on baseline and changes to CSF after three months of CLs wear were assessed. The effect of lens materials and wearing modality on CSF change was also investigated. RESULTS: CSF was higher with CLs in comparison to the values with spectacles for spatial frequencies of 3, 6 and 12 cycles per degree (cpd) (p < 0.05) while there was no difference for spatial frequency of 18 cpd (p = 0.114). No significant difference was found in the CSF with CLs between baseline and after three months of lens wear (p > 0.05). There was no difference in CSF between hydrogel and silicone CLs as well as when comparing daily with monthly wear CLs (p > 0.05). CONCLUSION: CSF is better with CLs than with spectacles. CSF values with CL are similar between baseline and after 3 months of lens wear. Elsevier 2020 2020-02-13 /pmc/articles/PMC7182777/ /pubmed/32063505 http://dx.doi.org/10.1016/j.optom.2020.01.002 Text en © 2020 Spanish General Council of Optometry. Published by Elsevier España, S.L.U. http://creativecommons.org/licenses/by-nc-nd/4.0/ This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
spellingShingle Original article
Sapkota, Kishor
Franco, Sandra
Lira, Madalena
Contrast sensitivity function with soft contact lens wear
title Contrast sensitivity function with soft contact lens wear
title_full Contrast sensitivity function with soft contact lens wear
title_fullStr Contrast sensitivity function with soft contact lens wear
title_full_unstemmed Contrast sensitivity function with soft contact lens wear
title_short Contrast sensitivity function with soft contact lens wear
title_sort contrast sensitivity function with soft contact lens wear
topic Original article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7182777/
https://www.ncbi.nlm.nih.gov/pubmed/32063505
http://dx.doi.org/10.1016/j.optom.2020.01.002
work_keys_str_mv AT sapkotakishor contrastsensitivityfunctionwithsoftcontactlenswear
AT francosandra contrastsensitivityfunctionwithsoftcontactlenswear
AT liramadalena contrastsensitivityfunctionwithsoftcontactlenswear