ArticleFrontiers in neuroscience2026
Retinal hemodynamic effects of sub-Tenon anesthesia.
Article in Frontiers in neuroscience, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Who cites it
1 citing paper in PubMed.
- Intraocular pressure spikes after intravitreal injection and their impact on OCT angiography.Frontiers in neuroscience · 2026Article
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5 authors.
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Abstract
Introduction and objectives: Sub-Tenon anesthesia techniques are commonly employed in ophthalmology. However, there is speculation that these techniques may have hemodynamic effects on the eye, potentially affecting patients with impaired ocular perfusion. This study aims to evaluate the impact of sub-Tenon anesthesia during cataract surgery on retinal vessel density (VD) and perfusion density (PD) in eyes affected by diabetic maculopathy (DM) or retinal vein occlusion (RVO), using optical coherence tomography angiography (OCTA). Methods: The study included 20 patients receiving sub-Tenon anesthesia with unpreserved mepivacaine 2% for unilateral cataract surgery: 10 with DM and 10 with RVO, analyzing a total of 40 eyes (20 treated and 20 untreated). Blood pressure, intraocular pressure (IOP), and retinal microvascular changes measured via OCTA (VD, PD) were documented before and shortly after sub-Tenon anesthesia. The contralateral eye, which did not receive anesthesia, served as a control. Results: A negative association between sub-Tenon anesthesia to VD and PD was observed, with a VD-change of -1.5 ± 2.8 mm/mm Conclusion: This study did not prove retinal microvascular changes associated with sub-Tenon anesthesia. The observed VD and PD reductions were likely caused by OCTA image artifacts rather than true hemodynamic changes.
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