ReviewJournal of clinical medicine2026
Adaptive Optics RTX1 Imaging for Early Detection of Retinal Vascular Remodeling in Hypertensive Retinopathy: A Review.
Review in Journal of clinical medicine, 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
BACKGROUND/
objectivesArterial hypertension might lead to serious organ damage and complications like hypertensive retinopathy. The retina is the only place in the human body where microscopic blood vessels can be directly investigated. This enables early diagnosis of arterial hypertension-mediated organ damage. Untreated hypertensive retinopathy leads to vision loss in its advanced stages. There are many methods of assessing changes in the arterioles; however, the most accurate is adaptive optics (RTX1™ device with AODetectArtery software, ver. 3.0., Imagine Eyes, Orsay, France). It provides a resolution of 1.6 μm, which is superior to conventional imaging techniques. Optical coherence tomography angiography can serve as an early, minimally invasive marker of microvascular damage. Across the studies analyzed, the WLR (Wall-to-Lumen Ratio) exhibited significantly higher values when comparing individuals with hypertensive retinopathy to normotensives (0.31 vs. 0.26). The main aim of this review is to present the application of adaptive optics in the early diagnosis of hypertensive retinopathy.
methodsThe search strategy included 267 original studies, among which 12 were selected to be described and analyzed in this review based on criteria including original research and studies performed on humans with hypertensive retinopathy.
resultsRTX1™ enables the assessment of arterial parameters such as the Wall Thickness (WT), Lumen Diameter (LD), Outer Diameter (OD), Wall-to-Lumen Ratio (WLR) and Wall Cross Sectional Area (WCSA). These parameters differ depending on the arterial hypertension. The WLR was identified to be the parameter that differs in the vast majority of analyzed studies when comparing hypertensive patients to normotensive patients. Vascular parameters were also found to change depending on different organisms' states, treatment applications and etiological causes of disease. Furthermore, changes in retinal arterial parameters were associated with increased cardiovascular risk in observational studies. RTX1™ was also identified to provide very good intra- and interobserver variability.
conclusionsRTX1™ is a valuable tool in the examination of arterial vessels and in establishing associations between retinal vascular parameters and a patient's clinical state.
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