Please use this identifier to cite or link to this item:
https://hdl.handle.net/2440/135447
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Type: | Journal article |
Title: | Normal-tension glaucoma is associated with cognitive impairment |
Author: | Mullany, S. Xiao, L. Qassim, A. Marshall, H. Gharahkhani, P. Macgregor, S. Hassall, M.M. Siggs, O.M. Souzeau, E. Craig, J.E. |
Citation: | British Journal of Ophthalmology, 2022; 106(7):952-956 |
Publisher: | BMJ Publishing Group |
Issue Date: | 2022 |
ISSN: | 0007-1161 1468-2079 |
Statement of Responsibility: | Sean Mullany, Lewis Xiao, Ayub Qassim, Henry Marshall, Puya Gharahkhani, Stuart MacGregor, Mark M Hassall, Owen M Siggs, Emmanuelle Souzeau, Jamie E Craig |
Abstract: | Background/aims: Recent research suggests an association between normal-tension glaucoma (NTG) and dementia. This study investigated whether cognitive impairment is more strongly associated with NTG than high tension glaucoma (HTG) using cognitive screening within an Australiasian Glaucoma Disease Registry. Methods: The authors completed a case–control cross sectional cognitive screening involving 290 age-matched and sex-matched NTG participants and HTG controls aged ≥65 randomly sampled from the Australian and New Zealand Registry of Advanced Glaucoma. Cognitive screening was performed using the Telephone Version of the Montreal Cognitive Assessment (T-MoCA). The T-MoCA omits points requiring visual interpretation, accounting for confounding factors related to vision loss in visually impaired participants. Cognitive impairment was defined by a T-MoCA score of <11/22. Cognition was compared between NTG and HTG participants using predetermined thresholds and absolute screening scores. Results: A total of 290 participants completed cognitive assessment. There were no differences in NTG (n=144) and HTG (n=146) cohort demographics or ocular parameters at baseline. Cognitive impairment was more prevalent in the NTG cohort than the HTG cohort (OR=2.2; 95% CI 1.1 to 6.7, p=0.030). Though a linear trend was also observed between lower absolute T-MoCA scores in the NTG cohort when compared with the HTG cohort, this association was not statistically significant (p=0.108). Conclusion: This study demonstrated an association between NTG status and poor cognition, supporting the hypothesis that there exists a disease association and shared pathoaetiological features between NTG and dementia. |
Keywords: | Optic Disk Humans Dementia Glaucoma Glaucoma, Open-Angle Cross-Sectional Studies Intraocular Pressure Visual Fields Australia Low Tension Glaucoma Visual Field Tests Cognitive Dysfunction |
Description: | Published Online First 29 March 2021 |
Rights: | © Author(s) (or their employer(s)) 2021. Re-use permitted under CC BY-NC. No commercial re-use. See rights and permissions. Published by BMJ. This is an open access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited, appropriate credit is given, any changes made indicated, and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/. |
DOI: | 10.1136/bjophthalmol-2020-317461 |
Grant ID: | http://purl.org/au-research/grants/nhmrc/1116360 http://purl.org/au-research/grants/nhmrc/1157571 |
Published version: | http://dx.doi.org/10.1136/bjophthalmol-2020-317461 |
Appears in Collections: | Opthalmology & Visual Sciences publications |
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File | Description | Size | Format | |
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hdl_135447.pdf | Published version | 369.32 kB | Adobe PDF | View/Open |
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