ArticleBMC ophthalmology2025
Early diagnosis of primary open-angle glaucoma using isolated-check visual evoked potential with blue-on-yellow perimetry.
Article in BMC ophthalmology, 2025. 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
backgroundEarly detection of primary open-angle glaucoma (POAG) is crucial, as current diagnostic methods often miss early-stage damage. Combining blue-on-yellow perimetry with isolated-check visual evoked potential (Ic-VEP) could enhance the sensitivity and specificity of early POAG detection.
objectiveTo evaluate the diagnostic efficacy of Ic-VEP combined with blue-on-yellow perimetry for early POAG detection.
methodsThis study included 66 POAG patients and 35 healthy controls, all of whom underwent comprehensive ophthalmologic assessments, including intraocular pressure (IOP), fundus examination, and optical coherence tomography (OCT) to measure retinal nerve fiber layer (RNFL) and ganglion cell complex (GCC) thickness. Ic-VEP and Humphrey 24 - 2 blue-on-yellow perimetry were performed to assess the sensitivity, specificity, and ROC curve for early POAG diagnosis. The correlation between Ic-VEP. results, GCC thickness, and visual field loss was also analyzed.
resultsIc-VEP demonstrated 74% sensitivity and 91% specificity for detecting POAG, with an area under the ROC curve (AUC) of 0.785, indicating reliable diagnostic performance. The Ic-VEP signal-to-noise ratio (SNR) showed significant correlation with the mean deviation (MD) of blue-on-yellow perimetry and GCC thickness (p < 0.05). The Kappa coefficient for consistency between Ic-VEP and blue-on-yellow perimetry was 0.226 in early-stage POAG, increasing to 0.672 in moderate to severe stages suggesting enhanced diagnostic value in later stages.
conclusionCombining Ic-VEP with blue-on-yellow perimetry shows promise for enhancing the early diagnosis of POAG, with Ic-VEP's high specificity (91%) complementing the sensitivity of perimetry. This approach could lead to earlier diagnosis and improved patient outcomes.
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