ArticleTomography (Ann Arbor, Mich.)2023
Changes in Choroidal Circulation Hemodynamics Measured Using Laser Speckle Flowgraphy after a Cold Pressor Test in Young Healthy Participants.
Article in Tomography (Ann Arbor, Mich.), 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 8 citations in OpenAlex.
- Evaluation of Posterior Segment Structural and Vascular Changes After Gonioscopy-Assisted Transluminal Trabeculotomy.Diagnostics (Basel, Switzerland) · 2026Article
- Physical Activity Is Associated with Higher Retinal Microvascular Density in Uveal Melanoma and Nevus.Cancers · 2026Article
- Investigation of Skin Circulation Hemodynamics Using Skin Laser Speckle Flowgraphy After Trapezius Muscle Self-Stretching.Muscles (Basel, Switzerland) · 2026Article
- Investigation of Effects of Ultrasound Therapy on Trapezius Muscle Stiffness and Choroidal Blood Flow Velocity.Muscles (Basel, Switzerland) · 2026Article
- Effects of Trapezius Muscle Self-Stretching on Muscle Stiffness and Choroidal Circulatory Dynamics: An Evaluation Using Ultrasound Strain Elastography and Laser Speckle Flowgraphy.Tomography (Ann Arbor, Mich.) · 2025Article
- Investigation of Choroidal Circulation Hemodynamics Using Laser Speckle Flowgraphy After Periocular Skin Warming.Cureus · 2024Article
- Changes in Retinal Hemodynamics in the Optic Nerve Head of Healthy Participants Measured Using Laser Speckle Flowgraphy after a Cold Pressor Test.Korean journal of ophthalmology : KJO · 2024Article
- Choroidal Thickness Increases During Parasympathetic Dominance After Immersion of the Foot in Warm Water.Cureus · 2024Article
- Choroidal Morphology and Systemic Circulation Changes During the Menstrual Cycle in Healthy Japanese Women.Cureus · 2023Article
- Parasympathetic Dominance Decreases the Choroidal Blood Flow Velocity Measured Using Laser Speckle Flowgraphy.Cureus · 2023Article
Corrections and comments
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Authors and funding
7 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Using laser speckle flowgraphy (LSFG), we investigated the time course of changes in choroidal circulation hemodynamics after a cold pressor test in healthy eyes. This prospective study included the right eye of 19 young healthy participants. The macular mean blur rate (MBR) was measured with LSFG. The MBR, intraocular pressure (IOP), systolic blood pressure (SBP), diastolic blood pressure (DBP), heart rate (HR), mean blood pressure (MBP), and ocular perfusion pressure (OPP) were evaluated at baseline; immediately after the test and 10, 20, and 30 min later. Immediately after the test (0 min), SBP, DBP, MBP, and OPP were significantly elevated compared with those at baseline. The macular MBR significantly increased by +10.3 ± 7.1% immediately after the test. However, there was no change after 10, 20, and 30 min in the above parameter. A significant positive correlation of the macular MBR with the SBP, MBP, and OPP was observed. In young healthy individuals, increased sympathetic activity induced by a cold pressor test increases choroidal hemodynamics in the macula along with an increase in systemic circulatory dynamics, which normalizes after 10 min. Therefore, LSFG may provide a novel approach for assessing sympathetic activity and intrinsic vascular responsiveness in the eye.
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