Discriminating early-stage diabetic retinopathy with subjective and objective perimetry

IntroductionTo prevent progression of early-stage diabetic retinopathy, we need functional tests that can distinguish multiple levels of neural damage before classical vasculopathy. To that end, we compared multifocal pupillographic objective perimetry (mfPOP), and two types of subjective automated...

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Main Authors: Faran Sabeti, Joshua P. van Kleef, Rakesh M. Iyer, Corinne F. Carle, Christopher J. Nolan, Rong Hui Chia, Ted Maddess
Format: Article
Language:English
Published: Frontiers Media S.A. 2024-01-01
Series:Frontiers in Endocrinology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fendo.2023.1333826/full
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author Faran Sabeti
Faran Sabeti
Joshua P. van Kleef
Rakesh M. Iyer
Corinne F. Carle
Christopher J. Nolan
Christopher J. Nolan
Rong Hui Chia
Ted Maddess
author_facet Faran Sabeti
Faran Sabeti
Joshua P. van Kleef
Rakesh M. Iyer
Corinne F. Carle
Christopher J. Nolan
Christopher J. Nolan
Rong Hui Chia
Ted Maddess
author_sort Faran Sabeti
collection DOAJ
description IntroductionTo prevent progression of early-stage diabetic retinopathy, we need functional tests that can distinguish multiple levels of neural damage before classical vasculopathy. To that end, we compared multifocal pupillographic objective perimetry (mfPOP), and two types of subjective automated perimetry (SAP), in persons with type 2 diabetes (PwT2D) with either no retinopathy (noDR) or mild to-moderate non-proliferative retinopathy (mmDR).MethodsBoth eyes were assessed by two mfPOP test methods that present stimuli within either the central ±15° (OFA15) or ±30° (OFA30), each producing per-region sensitivities and response delays. The SAP tests were 24-2 Short Wavelength Automated Perimetry and 24-2 Matrix perimetry.ResultsFive of eight mfPOP global indices were significantly different between noDR and mmDR eyes, but none of the equivalent measures differed for SAP. Per-region mfPOP identified significant hypersensitivity and longer delays in the peripheral visual field, verifying earlier findings. Diagnostic power for discrimination of noDR vs. mmDR, and normal controls vs. PwT2D, was much higher for mfPOP than SAP. The mfPOP per-region delays provided the best discrimination. The presence of localized rather than global changes in delay ruled out iris neuropathy as a major factor.DiscussionmfPOP response delays may provide new surrogate endpoints for studies of interventions for early-stage diabetic eye damage.
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spelling doaj.art-109c80a9c8d84000a5cd5211b0194a9c2024-01-08T06:20:00ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922024-01-011410.3389/fendo.2023.13338261333826Discriminating early-stage diabetic retinopathy with subjective and objective perimetryFaran Sabeti0Faran Sabeti1Joshua P. van Kleef2Rakesh M. Iyer3Corinne F. Carle4Christopher J. Nolan5Christopher J. Nolan6Rong Hui Chia7Ted Maddess8Eccles Institute for Neuroscience, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, AustraliaDiscipline of Optometry, Faculty of Health, University of Canberra, Canberra, ACT, AustraliaEccles Institute for Neuroscience, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, AustraliaDepartment of Endocrinology, The Canberra Hospital, Garran, ACT, AustraliaEccles Institute for Neuroscience, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, AustraliaDepartment of Endocrinology, The Canberra Hospital, Garran, ACT, AustraliaSchool of Medicine and Psychology, The Australian National University, Canberra, ACT, AustraliaSchool of Medicine, University of Western Australia, Crawley, WA, AustraliaEccles Institute for Neuroscience, The John Curtin School of Medical Research, The Australian National University, Canberra, ACT, AustraliaIntroductionTo prevent progression of early-stage diabetic retinopathy, we need functional tests that can distinguish multiple levels of neural damage before classical vasculopathy. To that end, we compared multifocal pupillographic objective perimetry (mfPOP), and two types of subjective automated perimetry (SAP), in persons with type 2 diabetes (PwT2D) with either no retinopathy (noDR) or mild to-moderate non-proliferative retinopathy (mmDR).MethodsBoth eyes were assessed by two mfPOP test methods that present stimuli within either the central ±15° (OFA15) or ±30° (OFA30), each producing per-region sensitivities and response delays. The SAP tests were 24-2 Short Wavelength Automated Perimetry and 24-2 Matrix perimetry.ResultsFive of eight mfPOP global indices were significantly different between noDR and mmDR eyes, but none of the equivalent measures differed for SAP. Per-region mfPOP identified significant hypersensitivity and longer delays in the peripheral visual field, verifying earlier findings. Diagnostic power for discrimination of noDR vs. mmDR, and normal controls vs. PwT2D, was much higher for mfPOP than SAP. The mfPOP per-region delays provided the best discrimination. The presence of localized rather than global changes in delay ruled out iris neuropathy as a major factor.DiscussionmfPOP response delays may provide new surrogate endpoints for studies of interventions for early-stage diabetic eye damage.https://www.frontiersin.org/articles/10.3389/fendo.2023.1333826/fullmultifocaltype 2 diabetesdiabetic retinopathyobjective perimetrysubjective perimetrymultifocal methods
spellingShingle Faran Sabeti
Faran Sabeti
Joshua P. van Kleef
Rakesh M. Iyer
Corinne F. Carle
Christopher J. Nolan
Christopher J. Nolan
Rong Hui Chia
Ted Maddess
Discriminating early-stage diabetic retinopathy with subjective and objective perimetry
Frontiers in Endocrinology
multifocal
type 2 diabetes
diabetic retinopathy
objective perimetry
subjective perimetry
multifocal methods
title Discriminating early-stage diabetic retinopathy with subjective and objective perimetry
title_full Discriminating early-stage diabetic retinopathy with subjective and objective perimetry
title_fullStr Discriminating early-stage diabetic retinopathy with subjective and objective perimetry
title_full_unstemmed Discriminating early-stage diabetic retinopathy with subjective and objective perimetry
title_short Discriminating early-stage diabetic retinopathy with subjective and objective perimetry
title_sort discriminating early stage diabetic retinopathy with subjective and objective perimetry
topic multifocal
type 2 diabetes
diabetic retinopathy
objective perimetry
subjective perimetry
multifocal methods
url https://www.frontiersin.org/articles/10.3389/fendo.2023.1333826/full
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