Baseline Visual Field Findings in the RUSH2A Study: Associated Factors and Correlation With Other Measures of Disease Severity.

dc.contributor.author

Duncan, Jacque L

dc.contributor.author

Liang, Wendi

dc.contributor.author

Maguire, Maureen G

dc.contributor.author

Audo, Isabelle

dc.contributor.author

Ayala, Allison R

dc.contributor.author

Birch, David G

dc.contributor.author

Carroll, Joseph

dc.contributor.author

Cheetham, Janet K

dc.contributor.author

Esposti, Simona Degli

dc.contributor.author

Durham, Todd A

dc.contributor.author

Erker, Laura

dc.contributor.author

Farsiu, Sina

dc.contributor.author

Ferris, Frederick L

dc.contributor.author

Heon, Elise

dc.contributor.author

Hufnagel, Robert B

dc.contributor.author

Iannaccone, Alessandro

dc.contributor.author

Jaffe, Glenn J

dc.contributor.author

Kay, Christine N

dc.contributor.author

Michaelides, Michel

dc.contributor.author

Pennesi, Mark E

dc.contributor.author

Sahel, José-Alain

dc.contributor.author

Foundation Fighting Blindness Consortium Investigator Group

dc.date.accessioned

2021-10-01T18:24:59Z

dc.date.available

2021-10-01T18:24:59Z

dc.date.issued

2020-11

dc.date.updated

2021-10-01T18:24:59Z

dc.description.abstract

Purpose

To report baseline visual fields in the Rate of Progression in USH2A-related Retinal Degeneration (RUSH2A) study.

Design

Cross-sectional study within a natural history study.

Methods

Setting: multicenter, international.

Study population

Usher syndrome type 2 (USH2) (n = 80) or autosomal recessive nonsyndromic retinitis pigmentosa (ARRP) (n = 47) associated with biallelic disease-causing sequence variants in USH2A.

Observation procedures

Repeatability of full-field static perimetry (SP) and between-eye symmetry of kinetic perimetry (KP) were evaluated with intraclass correlation coefficients (ICCs). The association of demographic and clinical characteristics with total hill of vision (VTOT) was assessed with general linear models. Associations between VTOT and other functional and morphologic measures were assessed using Spearman correlation coefficients and t tests.

Main outcome measures

VTOT (SP) and III4e isopter area (KP).

Results

USH2 participants had more severe visual field loss than ARRP participants (P < .001, adjusting for disease duration, age of enrollment). Mean VTOT measures among 3 repeat tests were 32.7 ± 24.1, 31.2 ± 23.4, and 31.7 ± 23.9 decibel-steradians (intraclass correlation coefficient [ICC] = 0.96). Better VA, greater photopic ERG 30-Hz flicker amplitudes, higher mean microperimetry sensitivity, higher central subfield thickness, absence of macular cysts, and higher III4e seeing area were associated with higher VTOT (all r > .48; P < .05). Mean III4e isopter areas for left (4561 ± 4426 squared degrees) and right eyes (4215 ± 4300 squared degrees) were concordant (ICC = 0.94).

Conclusions

USH2 participants had more visual field loss than participants with USH2A-related ARRP, adjusting for duration of disease and age of enrollment. VTOT was repeatable and correlated with other functional and structural metrics, suggesting it may be a good summary measure of disease severity in patients with USH2A-related retinal degeneration.
dc.identifier

S0002-9394(20)30254-3

dc.identifier.issn

0002-9394

dc.identifier.issn

1879-1891

dc.identifier.uri

https://hdl.handle.net/10161/23893

dc.language

eng

dc.publisher

Elsevier BV

dc.relation.ispartof

American journal of ophthalmology

dc.relation.isversionof

10.1016/j.ajo.2020.05.024

dc.subject

Foundation Fighting Blindness Consortium Investigator Group

dc.subject

Retina

dc.subject

Humans

dc.subject

Vision Disorders

dc.subject

Retinitis Pigmentosa

dc.subject

Disease Progression

dc.subject

Extracellular Matrix Proteins

dc.subject

Electroretinography

dc.subject

Severity of Illness Index

dc.subject

Longitudinal Studies

dc.subject

Cross-Sectional Studies

dc.subject

Visual Acuity

dc.subject

Visual Fields

dc.subject

Research Design

dc.subject

Adult

dc.subject

Middle Aged

dc.subject

Female

dc.subject

Male

dc.subject

Usher Syndromes

dc.subject

Visual Field Tests

dc.title

Baseline Visual Field Findings in the RUSH2A Study: Associated Factors and Correlation With Other Measures of Disease Severity.

dc.type

Journal article

duke.contributor.orcid

Farsiu, Sina|0000-0003-4872-2902

duke.contributor.orcid

Iannaccone, Alessandro|0000-0001-5737-8424

pubs.begin-page

87

pubs.end-page

100

pubs.issue

7

pubs.organisational-group

School of Medicine

pubs.organisational-group

Ophthalmology, Vitreoretinal Diseases & Surgery

pubs.organisational-group

Duke

pubs.organisational-group

Ophthalmology

pubs.organisational-group

Clinical Science Departments

pubs.organisational-group

Pratt School of Engineering

pubs.organisational-group

Computer Science

pubs.organisational-group

Biomedical Engineering

pubs.organisational-group

Electrical and Computer Engineering

pubs.organisational-group

Duke Institute for Brain Sciences

pubs.organisational-group

Trinity College of Arts & Sciences

pubs.organisational-group

University Institutes and Centers

pubs.organisational-group

Institutes and Provost's Academic Units

pubs.publication-status

Published

pubs.volume

219

Files

Original bundle

Now showing 1 - 1 of 1
Loading...
Thumbnail Image
Name:
RUSH2A - Baseline VF - AJO 2020.pdf
Size:
502.08 KB
Format:
Adobe Portable Document Format