Prevalence of post stroke visual impairment: A systematic review
| Saturday, November 2, 2024 |
| 3:35 PM - 3:45 PM |
| Panorama Rooms 2 & 3 |
Overview
Rusmiza Binti Amin
Speaker
Ms Rusmiza Binti Amin
University of Technology Sydney
Prevalence of post stroke visual impairment: A systematic review
Abstract
Aim: To determine the prevalence of post-stroke visual impairment and explore factors that may contribute to variation such as, stroke location and other population characteristics.
Methods: A systematic search of SCOPUS and PubMed databases was conducted in January and repeated in April, 2024. Search results returned n=23,204 records for screening. English language articles that reported the prevalence of post-stroke visual impairment in adult participants (age ≥18) with sample size n= ≥20 were eligible for inclusion. Studies of selected cases and treatment trials were excluded.
Results: Data from 99 articles was extracted. The prevalence of post-stroke visual impairment was estimated at 61%, ranging from 19% - 92%. Mean prevalences of visual field loss, ocular motility defects and strabismus, central vision deficit and visual perception abnormalities were 34% (6.9% - 84.4%), 53% (8.7% - 81.2%), 26% (0% - 44%), 24% (5.3% - 50.2%) and 18% (5.8% - 34.7%), respectively. Ocular motility defects and strabismus were more prevalent in posterior circulation stroke compared to anterior circulation stroke. Factors that contributed to variation in reported prevalence included study population, methods of detecting visual impairment, types of visual impairment included, stroke location and time since stroke.
Conclusion: There is a high prevalence of visual impairment following stroke occurrence (mean 61%), with visual field loss being most prevalent. Significant variation exists in reported prevalences, and differences in population and methodology are a challenge for meaningful comparison between studies. Further work is needed to create consistency and facilitate greater understanding of the burden of post-stroke visual impairment.
Methods: A systematic search of SCOPUS and PubMed databases was conducted in January and repeated in April, 2024. Search results returned n=23,204 records for screening. English language articles that reported the prevalence of post-stroke visual impairment in adult participants (age ≥18) with sample size n= ≥20 were eligible for inclusion. Studies of selected cases and treatment trials were excluded.
Results: Data from 99 articles was extracted. The prevalence of post-stroke visual impairment was estimated at 61%, ranging from 19% - 92%. Mean prevalences of visual field loss, ocular motility defects and strabismus, central vision deficit and visual perception abnormalities were 34% (6.9% - 84.4%), 53% (8.7% - 81.2%), 26% (0% - 44%), 24% (5.3% - 50.2%) and 18% (5.8% - 34.7%), respectively. Ocular motility defects and strabismus were more prevalent in posterior circulation stroke compared to anterior circulation stroke. Factors that contributed to variation in reported prevalence included study population, methods of detecting visual impairment, types of visual impairment included, stroke location and time since stroke.
Conclusion: There is a high prevalence of visual impairment following stroke occurrence (mean 61%), with visual field loss being most prevalent. Significant variation exists in reported prevalences, and differences in population and methodology are a challenge for meaningful comparison between studies. Further work is needed to create consistency and facilitate greater understanding of the burden of post-stroke visual impairment.
Biography
First-year PhD student at the University of Technology Sydney with a special interest in pediatric strabismus and stroke visual impairment. Dedicated and highly skilled orthoptist with prior training and experience as an optometrist. With over 10 years of clinical experience in the assessment, diagnosis, and treatment of eye movement disorders and binocular vision problems.
