ArticleEye and brain2026
Assessing Retinal Thickness and Associations with Cognitive Function in Women with History of Preeclampsia.
Article in Eye and brain, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Purpose: Women with preeclampsia are at risk of developing cognitive changes and dementia later in life. The retina - an extension of the brain - may provide insight about structural changes associated with preeclampsia and serve as a biomarker of long-term neural and vascular consequences. Our goal was to compare retinal thickness measurements between women with and without history of preeclampsia, and to determine associations with cognitive performance. Patients and Methods: This prospective cohort study recruited preeclampsia (N=17) and normotensive (N=18) women 10-15 years after delivery. We assessed retinal thickness using spectral-domain optical coherence tomography (SD-OCT). Principal component analysis was used to detect retinal regional patterns. Cognitive performance was evaluated to assess memory (Wechsler Memory immediate and delayed), working memory-Letter-Number Sequencing, information processing speed (Digit Symbol, Stroop Word and Color) and executive (WAIS similarities, matrix reasoning, and Stroop interference) domains. Regression models estimated associations between retina measurements, preeclampsia history and cognitive performance. Results: Using the standard early treatment diabetic retinopathy study grid, compared to normotensive, preeclampsia women had thinner outer retina subfields. Similarly, two out of three principal components suggested different patterns of retinal changes at the outer vs central region. The thinner inner nasal and superior quadrants were associated with lower scores on the executive function domain - Stroop Color test (β=12.2, Conclusion: Our study provides a novel, integrated assessment of preeclampsia by simultaneously evaluating retina and cognitive markers. Retinal imaging 10-15 years after delivery in women with a history of preeclampsia showed a decreased thickness in the outer region of the retina. Selective vulnerability of peripheral retinal regions to persistent microvascular changes after preeclampsia may reflect broader central nervous system changes associated with impairments in information processing speed, executive functioning and working memory.
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