Impact of cataract surgery on a delirium-related electroencephalography index in older adults
The bispectral electroencephalography (BSEEG) method is a simple one-channel quantitative electroencephalography approach that yields a single index, with higher scores previously associated with more severe delirium in older adults. We prospectively measured BSEEG scores in 21 patients over 60 years old before and 1 month after cataract surgery. BSEEG scores significantly decreased after surgery (p=0.001), and this decrease significantly correlated with improvement in best-corrected visual acuity (r=0.52; p=0.02). Improved visual function after cataract surgery was associated with lower BSEEG scores.
Authors
- Hiroshi Tanaka (ORCID: https://orcid.org/0000-0003-1667-0001)
- Koji Kitazawa
- Kohsaku Numa (ORCID: https://orcid.org/0000-0002-3176-9619)
- Akiyoshi Shimura (ORCID: https://orcid.org/0000-0003-0806-4423)
- Chie Sotozono
- Kengo Yoshii
- Yusuke Koga
- Tomoka Nakazawa
- Gen Shinozaki
- Hideki Fukuoka
- Tomoteru Seki
Institutions
- Kyoto Prefectural University of Medicine (JP)
- Stanford University (US)
Publication Details
- Journal
- British Journal of Ophthalmology
- Published
- 2026-03-23
- DOI
- https://doi.org/10.1136/bjo-2025-329212
- Primary Topic
- Intensive Care Unit Cognitive Disorders
- Type
- article
- Field-Weighted Citation Impact
- 0.00