Effects of cannabis on visual function and self-perceived visual quality

Abstract Cannabis is one of the most used drugs of abuse in the world. The objective of this study was to analyze the effects of smoking cannabis on vision and to relate these to those perceived by the user. Thirty-one cannabis users participated in this study. Visual function assessment was carried...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Sonia Ortiz-Peregrina, Carolina Ortiz, Miriam Casares-López, José R. Jiménez, Rosario G. Anera
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/20d514edb66642e98bcdb4d7e4b0c297
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:20d514edb66642e98bcdb4d7e4b0c297
record_format	dspace
spelling	oai:doaj.org-article:20d514edb66642e98bcdb4d7e4b0c2972021-12-02T15:23:47ZEffects of cannabis on visual function and self-perceived visual quality10.1038/s41598-021-81070-52045-2322https://doaj.org/article/20d514edb66642e98bcdb4d7e4b0c2972021-01-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-81070-5https://doaj.org/toc/2045-2322Abstract Cannabis is one of the most used drugs of abuse in the world. The objective of this study was to analyze the effects of smoking cannabis on vision and to relate these to those perceived by the user. Thirty-one cannabis users participated in this study. Visual function assessment was carried out in a baseline session as well as after smoking cannabis. We evaluated static visual acuity, contrast sensitivity, stereoacuity, accommodative response, straylight, night-vision disturbances (halos) and pupil size. The participants were also divided into two groups depending on whether they perceived their vision to have worsened after smoking cannabis. A logistic regression analysis was employed to identify which visual test could best predict self-perceived visual effects. The study found that smoking cannabis has significant adverse effects on all the visual parameters analyzed (p < 0.05). Self-perceived visual quality results revealed that about two thirds of the sample think that smoking cannabis impairs their vision. Contrast sensitivity, specifically for the spatial frequency 18 cpd, was identified as the only visual parameter significantly associated with self-perceived visual quality (Odds Ratio: 1.135; p = 0.040). Smoking cannabis is associated with negative effects on visual function. Self-perceived visual quality after smoking cannabis could be related to impaired contrast sensitivity.Sonia Ortiz-PeregrinaCarolina OrtizMiriam Casares-LópezJosé R. JiménezRosario G. AneraNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Sonia Ortiz-Peregrina Carolina Ortiz Miriam Casares-López José R. Jiménez Rosario G. Anera Effects of cannabis on visual function and self-perceived visual quality
description	Abstract Cannabis is one of the most used drugs of abuse in the world. The objective of this study was to analyze the effects of smoking cannabis on vision and to relate these to those perceived by the user. Thirty-one cannabis users participated in this study. Visual function assessment was carried out in a baseline session as well as after smoking cannabis. We evaluated static visual acuity, contrast sensitivity, stereoacuity, accommodative response, straylight, night-vision disturbances (halos) and pupil size. The participants were also divided into two groups depending on whether they perceived their vision to have worsened after smoking cannabis. A logistic regression analysis was employed to identify which visual test could best predict self-perceived visual effects. The study found that smoking cannabis has significant adverse effects on all the visual parameters analyzed (p < 0.05). Self-perceived visual quality results revealed that about two thirds of the sample think that smoking cannabis impairs their vision. Contrast sensitivity, specifically for the spatial frequency 18 cpd, was identified as the only visual parameter significantly associated with self-perceived visual quality (Odds Ratio: 1.135; p = 0.040). Smoking cannabis is associated with negative effects on visual function. Self-perceived visual quality after smoking cannabis could be related to impaired contrast sensitivity.
format	article
author	Sonia Ortiz-Peregrina Carolina Ortiz Miriam Casares-López José R. Jiménez Rosario G. Anera
author_facet	Sonia Ortiz-Peregrina Carolina Ortiz Miriam Casares-López José R. Jiménez Rosario G. Anera
author_sort	Sonia Ortiz-Peregrina
title	Effects of cannabis on visual function and self-perceived visual quality
title_short	Effects of cannabis on visual function and self-perceived visual quality
title_full	Effects of cannabis on visual function and self-perceived visual quality
title_fullStr	Effects of cannabis on visual function and self-perceived visual quality
title_full_unstemmed	Effects of cannabis on visual function and self-perceived visual quality
title_sort	effects of cannabis on visual function and self-perceived visual quality
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/20d514edb66642e98bcdb4d7e4b0c297
work_keys_str_mv	AT soniaortizperegrina effectsofcannabisonvisualfunctionandselfperceivedvisualquality AT carolinaortiz effectsofcannabisonvisualfunctionandselfperceivedvisualquality AT miriamcasareslopez effectsofcannabisonvisualfunctionandselfperceivedvisualquality AT joserjimenez effectsofcannabisonvisualfunctionandselfperceivedvisualquality AT rosarioganera effectsofcannabisonvisualfunctionandselfperceivedvisualquality
_version_	1718387249512448000

Effects of cannabis on visual function and self-perceived visual quality

Ejemplares similares