Biomarkers in Usher syndrome: ultra-widefield fundus autofluorescence and optical coherence tomography findings and their correlation with visual acuity and electrophysiology findings

Mustafic, Nina; Ristoldo, Federica; Nguyen, Vuong; Fraser, Clare L.; Invernizzi, Alessandro; Jamieson, Robyn V; Grigg, John

doi:10.1007/s10633-020-09765-0

Cited by 7 publications

(2 citation statements)

References 35 publications

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“…This finding was reported previously in other cohorts of USH patients, highlighting a progressive spatial correlation among FAF worsening, outer retina disruption, and MS reduction. 17 , 27 , 28 …”

Section: Discussionmentioning

confidence: 99%

Multicentric Longitudinal Prospective Study in a European Cohort of MYO7A Patients: Disease Course and Implications for Gene Therapy

Testa,

Carreño,

van den Born

et al. 2024

Invest. Ophthalmol. Vis. Sci.

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Section: Discussionmentioning

confidence: 99%

Multicentric Longitudinal Prospective Study in a European Cohort of MYO7A Patients: Disease Course and Implications for Gene Therapy

Testa,

Carreño,

van den Born

et al. 2024

Invest. Ophthalmol. Vis. Sci.

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“…[24][25][26][27] In particular, in RP the ellipsoid zone (EZ) length has been observed to have good correlation with central vision. 3,28…”

Section: Introductionmentioning

confidence: 99%

Assessing Residual Cone Function in Retinitis Pigmentosa Patients

Arsiwalla

Cornish

Nguyen

et al. 2020

Trans. Vis. Sci. Tech.

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Purpose The purpose of this study was to investigate cone function deterioration in patients with retinitis pigmentosa (RP) using full field electroretinogram (ffERG), pattern electroretinogram (pERG), and optical coherence tomography (OCT) and their correlation with visual acuity (VA). Methods Clinical records (2008–2018) of patients with RP undergoing repeat electrophysiology were reviewed. Results of ffERG (30 Hz flicker and fused flicker amplitude [FFAmp]), pERG [p50 and n95], and macular OCT (ellipsoid zone [EZ] and outer segment thickness) were collected. Results One hundred twenty-six eyes from 63 patients (33 women, mean age 35 years) were included. The mean decline in VA was 0.11 ± 0.14 logarithm of minimum angle of resolution (logMAR). The FFAmp decreased by 3.01 ± 5.9 µV with global cone function deteriorating by 18.7% annually. The percentage change in FFAmp (RE [ r = 0.553], LE [ r = 0.531]), and 30 Hz flicker amplitude (RE [ r = 0.615], LE [ r = 0.529]) strongly correlated with VA ( P < 0.00001). The pERG p50 (15 and 30 degrees) change analyzed in 34 patients showed reduction by 23% and 23.4%, respectively. The percentage change in p50 30 degrees ( r = 0.397) correlated with VA and EZ layer ( P < 0.05). The EZ layer change was calculated in 45 patients and the shortening and thinning rate was 4.3% and 4.4% annually, respectively. The EZ length percentage change correlated with VA (RE [ r = 0.34] and LE [ r = 0.466; P < 0.05). Conclusions We quantified the decline in cone function in patients with RP utilizing ffERG and FFAmp measures of residual cone function. These parameters correlated with VA and OCT when measurable. These objective measures may assist in monitoring disease progression. Translational Relevance Residual cone function provides an objective estimate of residual visual function, which aids in counselling patients regarding prognosis.

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Wavelet Deep Learning Network for Objective Retinal Functional Estimation from Multimodal Retinal Imaging

Le,

Yassin,

Freeman

et al. 2024

Lecture Notes in Computer Science

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Biomarkers in Usher syndrome: ultra-widefield fundus autofluorescence and optical coherence tomography findings and their correlation with visual acuity and electrophysiology findings

Cited by 7 publications

References 35 publications

Multicentric Longitudinal Prospective Study in a European Cohort of MYO7A Patients: Disease Course and Implications for Gene Therapy

Multicentric Longitudinal Prospective Study in a European Cohort of MYO7A Patients: Disease Course and Implications for Gene Therapy

Assessing Residual Cone Function in Retinitis Pigmentosa Patients

Wavelet Deep Learning Network for Objective Retinal Functional Estimation from Multimodal Retinal Imaging

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