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The Measurement of Elderly Volunteers’ Optic Nerve Sheath Diameters by Ocular Ultrasonography

Background and objectives: The optic nerve is a component of the central nervous system, and the optic nerve sheath is connected to the subarachnoid space. For this reason, intracranial pressure (ICP) increases are directly transmitted to the optic nerve sheath. Knowing the normal optic nerve sheath...

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Autores principales: Avci, Mustafa, Kozaci, Nalan, Komut, Erdal, Komut, Seval, Caliskan, Gulsum, Tulubas, Gul
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6724037/
https://www.ncbi.nlm.nih.gov/pubmed/31357667
http://dx.doi.org/10.3390/medicina55080413
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author Avci, Mustafa
Kozaci, Nalan
Komut, Erdal
Komut, Seval
Caliskan, Gulsum
Tulubas, Gul
author_facet Avci, Mustafa
Kozaci, Nalan
Komut, Erdal
Komut, Seval
Caliskan, Gulsum
Tulubas, Gul
author_sort Avci, Mustafa
collection PubMed
description Background and objectives: The optic nerve is a component of the central nervous system, and the optic nerve sheath is connected to the subarachnoid space. For this reason, intracranial pressure (ICP) increases are directly transmitted to the optic nerve sheath. Knowing the normal optic nerve sheath diameter (ONSD) range in a healthy population is necessary to interpret this measurement as a sign of intracranial pressure in clinical practice and research. In this study, we aimed to determine the standard ONSD value in healthy adultsaged65 years of age or older who had not previously been diagnosed with a disease that could increase the ICP. Materials and Methods: The right and left ONSD values and ONSD differences were compared, according to the gender of the patients. The patients were divided into 3 groups, according to their age. The age groups were assigned as follows: Group 1: 65–74 years of age; Group 2: 75–84 years of age; and Group 3: 85 years of age or older. The ONSDs and the ONSD difference between the left and right eyes of Group 1, Group 2 and Group 3 were compared. Results: The study included 195 volunteers. The mean ONSD of both eyes was 4.16±0.69 mm, and the difference between the ONSD of the left and right eyes was 0.16±0.18 mm. There was no difference between genders in terms of right ONSD, left ONSD, mean ONSD and ONSD difference between the left and right eyes. There was no correlation between age and ONSD and ONSD difference. When the age groups and ONSD were compared, no difference was found between the groups. Conclusions: In conclusion, the ONSDs of both eyes do not vary with age in healthy adults aged65 years or older. ONSD does not vary between genders. The calculation of ONSD difference can be used to determine ICP increase.
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spelling pubmed-67240372019-09-10 The Measurement of Elderly Volunteers’ Optic Nerve Sheath Diameters by Ocular Ultrasonography Avci, Mustafa Kozaci, Nalan Komut, Erdal Komut, Seval Caliskan, Gulsum Tulubas, Gul Medicina (Kaunas) Article Background and objectives: The optic nerve is a component of the central nervous system, and the optic nerve sheath is connected to the subarachnoid space. For this reason, intracranial pressure (ICP) increases are directly transmitted to the optic nerve sheath. Knowing the normal optic nerve sheath diameter (ONSD) range in a healthy population is necessary to interpret this measurement as a sign of intracranial pressure in clinical practice and research. In this study, we aimed to determine the standard ONSD value in healthy adultsaged65 years of age or older who had not previously been diagnosed with a disease that could increase the ICP. Materials and Methods: The right and left ONSD values and ONSD differences were compared, according to the gender of the patients. The patients were divided into 3 groups, according to their age. The age groups were assigned as follows: Group 1: 65–74 years of age; Group 2: 75–84 years of age; and Group 3: 85 years of age or older. The ONSDs and the ONSD difference between the left and right eyes of Group 1, Group 2 and Group 3 were compared. Results: The study included 195 volunteers. The mean ONSD of both eyes was 4.16±0.69 mm, and the difference between the ONSD of the left and right eyes was 0.16±0.18 mm. There was no difference between genders in terms of right ONSD, left ONSD, mean ONSD and ONSD difference between the left and right eyes. There was no correlation between age and ONSD and ONSD difference. When the age groups and ONSD were compared, no difference was found between the groups. Conclusions: In conclusion, the ONSDs of both eyes do not vary with age in healthy adults aged65 years or older. ONSD does not vary between genders. The calculation of ONSD difference can be used to determine ICP increase. MDPI 2019-07-27 /pmc/articles/PMC6724037/ /pubmed/31357667 http://dx.doi.org/10.3390/medicina55080413 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Avci, Mustafa
Kozaci, Nalan
Komut, Erdal
Komut, Seval
Caliskan, Gulsum
Tulubas, Gul
The Measurement of Elderly Volunteers’ Optic Nerve Sheath Diameters by Ocular Ultrasonography
title The Measurement of Elderly Volunteers’ Optic Nerve Sheath Diameters by Ocular Ultrasonography
title_full The Measurement of Elderly Volunteers’ Optic Nerve Sheath Diameters by Ocular Ultrasonography
title_fullStr The Measurement of Elderly Volunteers’ Optic Nerve Sheath Diameters by Ocular Ultrasonography
title_full_unstemmed The Measurement of Elderly Volunteers’ Optic Nerve Sheath Diameters by Ocular Ultrasonography
title_short The Measurement of Elderly Volunteers’ Optic Nerve Sheath Diameters by Ocular Ultrasonography
title_sort measurement of elderly volunteers’ optic nerve sheath diameters by ocular ultrasonography
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6724037/
https://www.ncbi.nlm.nih.gov/pubmed/31357667
http://dx.doi.org/10.3390/medicina55080413
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