Shijing Wu, Ailing Sui, Qianyi Zhan, Qiuli Fu, Li Zhang
{"title":"Retinal degeneration as an initial manifestation in a patient with neuronal intranuclear inclusion disease.","authors":"Shijing Wu, Ailing Sui, Qianyi Zhan, Qiuli Fu, Li Zhang","doi":"10.1007/s10633-025-10035-0","DOIUrl":"https://doi.org/10.1007/s10633-025-10035-0","url":null,"abstract":"<p><strong>Background: </strong>Neuronal intranuclear inclusion disease (NIID) is a rare autosomal dominant, progressive neurodegenerative disorder characterized by a broad spectrum of clinical conditions, including pyramidal and extrapyramidal symptoms, cerebellar ataxia, cognitive decline and dementia, peripheral neuropathy, and autonomic dysfunction.</p><p><strong>Case report: </strong>A 56-year-old woman presented night blindness since her youth, followed by tremors. She complained diminished vision in the left eye attributed to the presence of a macular hole. Ophthalmic examination showed obvious retinal degeneration in both eyes. Genetic testing result identified a heterozygous CGG repeat expansion in NOTCH2NLC gene. Visual acuity of left eye improved after vitrectomy.</p><p><strong>Conclusions: </strong>We reported detailed clinical features and genetic analysis of a new Chinese NIID patient who ocular symptom was the initial manifestation. And this was the first report of surgical case of a macular hole in NIID patient.</p>","PeriodicalId":11207,"journal":{"name":"Documenta Ophthalmologica","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144293504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Abstracts of the 62nd annual symposium of the international society for clinical electrophysiology of vision (ISCEV 2025), Utrecht, the Netherlands.","authors":"","doi":"10.1007/s10633-025-10031-4","DOIUrl":"https://doi.org/10.1007/s10633-025-10031-4","url":null,"abstract":"","PeriodicalId":11207,"journal":{"name":"Documenta Ophthalmologica","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144265604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Herman E Talsma, Gerard C de Wit, Charlotte C Kruijt, Stefan H L Zwerver, Maria M van Genderen
{"title":"Nystagmus characteristics and their impact on pattern-reversal VEP in patients with albinism.","authors":"Herman E Talsma, Gerard C de Wit, Charlotte C Kruijt, Stefan H L Zwerver, Maria M van Genderen","doi":"10.1007/s10633-025-10026-1","DOIUrl":"https://doi.org/10.1007/s10633-025-10026-1","url":null,"abstract":"<p><strong>Purpose: </strong>To describe the association between nystagmus characteristics and pattern-reversal VEP (prVEP) P100 amplitude and peak time in patients with albinism.</p><p><strong>Methods: </strong>We analyzed the prVEP (60' and 15' checksize) and nystagmus recordings from 47 patients with albinism, 17 with a relatively good visual acuity (≤ 0.3 logMAR), and 30 with a relatively poor visual acuity (≥ 0.6 logMAR). The nystagmus waveforms were classified into two types: dominantly pendular and dominantly jerk. We correlated the nystagmus type, amplitude, frequency, and percentage of low velocity (PLOV) to P100 amplitude and peak time.</p><p><strong>Results: </strong>For most patients (87%), reproducible responses were observed for the large checks (60'). Among patients with good visual acuity, 94% had reproducible responses of which the majority (82%) of P100 amplitudes fell within the normal reference range. In contrast, although 83% of patients with poor visual acuity showed reproducible responses, only a minority (17%) of P100 amplitudes were within the normal range. The P100 amplitude to 60'check sizes was statistically correlated with PLOV (r = 0.58, p < 0.0001), nystagmus type (r = -0.55, p < 0.0001), and nystagmus amplitude (r = -0.39, p = 0.0092). Patients with relatively good visual acuity and jerk nystagmus exhibited the highest PLOV and the largest P100 amplitude (p < 0.0001). In contrast, there was no significant correlation between P100 peak time and any nystagmus parameters in patients with good or poor visual acuity.93% normal peak time. For the small checks (15'), 76% of patients with good visual acuity, still showed reproducible responses, with the majority (71%) of P100 amplitudes falling within the normal reference range. In contrast, among patients with poor visual acuity, only 3% (1 patient) showed reproducible responses, but with amplitudes below the normal range. For the patients with good visual acuity, PLOV showed a significant correlation with P100 amplitude. P100 peak time was normal for 77% (10/13) of these patients.</p><p><strong>Conclusions: </strong>For the prVEP with 60' checks, nystagmus in patients with albinism predominantly affects the P100 amplitude but not the P100 peak time. For 15' checks the amplitude is often so small that clear responses are no longer discernable, especially in patients with poor visual acuity.</p>","PeriodicalId":11207,"journal":{"name":"Documenta Ophthalmologica","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144207978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jonathan A Alexis, Prathiba Ramakrishnan, Matthew K Kenworthy, Jennifer A Thompson, Enid S Chelva, Fred K Chen
{"title":"CTNNA1-associated retinal dystrophy: novel multimodal imaging and electrophysiology features.","authors":"Jonathan A Alexis, Prathiba Ramakrishnan, Matthew K Kenworthy, Jennifer A Thompson, Enid S Chelva, Fred K Chen","doi":"10.1007/s10633-025-10027-0","DOIUrl":"https://doi.org/10.1007/s10633-025-10027-0","url":null,"abstract":"<p><strong>Purpose: </strong>To describe multimodal imaging and electrophysiology features of CTNNA1-associated retinal dystrophy in a family with p.(Leu318Ser) substitution.</p><p><strong>Methods: </strong>Three family members including a 48-year-old male proband, his 52-year-old sister, and their 67-year-old mother, were evaluated with multimodal imaging and electrophysiology. The proband, referred with suspected Best's disease, underwent a retinal dystrophy panel and two affected family members were target sequenced for the familial variant.</p><p><strong>Results: </strong>The NM_001903.5:c.953T > C variant in CTNNA1 segregated with affected family members. They maintained a visual acuity of 20/25 or better throughout 2-4 years of follow-up. The proband exhibited butterfly-shaped pigment dystrophy whilst his sister had no macular lesions, and their mother had foveal pigmentary changes. All three displayed peripheral retinal reticular pigmentation with variable atrophy. Microperimetry demonstrated enlarging paracentral scotoma in the proband whilst Esterman binocular suprathreshold test showed reproducible peripheral loss in the proband's sister. Multifocal electroretinography (ERG) confirmed central macular dysfunction in the proband. In all three, full-field ERG showed mildly delayed dark-adapted (DA) 0.01 b-wave and DA3.0 a-wave, and a light-rise of < 1.7 in one or both eyes on electro-oculography (EOG).</p><p><strong>Conclusions: </strong>CTNNA1-associated retinal dystrophy due to p.(Leu318Ser) has a unique peripheral retinal phenotype despite variable macular involvement. Reduced EOG light-rise and peripheral reticular pigmentation should raise suspicion of CTNNA1 in butterfly-shaped pigment dystrophy.</p>","PeriodicalId":11207,"journal":{"name":"Documenta Ophthalmologica","volume":" ","pages":""},"PeriodicalIF":2.6,"publicationDate":"2025-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144198463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nicole Manfredonia, Hannah M Follett, Phyllis Summerfelt, James A Kuchenbecker, Joseph Carroll, Ching Tzu Yu
{"title":"Evaluating the repeatability of the multifocal electroretinogram in the cone dominant 13-lined ground squirrel.","authors":"Nicole Manfredonia, Hannah M Follett, Phyllis Summerfelt, James A Kuchenbecker, Joseph Carroll, Ching Tzu Yu","doi":"10.1007/s10633-025-10010-9","DOIUrl":"10.1007/s10633-025-10010-9","url":null,"abstract":"<p><strong>Purpose: </strong>To assess the repeatability of the multifocal electroretinogram (mfERG) in the 13-lined ground squirrel (13-LGS).</p><p><strong>Methods: </strong>13-LGS (Ictidomys tridecemlineatus, 2 M/4F, n = 12 eyes) were equally divided between 61-segment or 103-segment protocols containing two consecutive mfERG scans per session, and two total sessions performed one week apart per eye. The trough-to-peak amplitudes were analyzed under three conditions: raw, normalized to the optic nerve head (ONH), and normalized to the visual streak (VS). For intrasession repeatability, the two consecutive scans within each session were analyzed. For intersession repeatability analyses, one scan was randomly chosen from each day.</p><p><strong>Results: </strong>Intrasession repeatability of the mfERG trough-to-peak amplitude data averaged at 63% (Raw), 55% (ONH), and 50% (VS). There was no significant difference in repeatability between each day's intrasession repeatability values for all normalization conditions (Raw: Wilcoxon t-test, p = 0.2334; ONH: Paired t-test, p = 0.7803; VS: Wilcoxon t-test, p = 0.3804). Intersession percent repeatability of mfERG trough-to-peak amplitude data averaged at 72% (Raw), 61% (ONH), and 53% (VS). There was a statistically significant difference between the groups (Friedman test, p = 0.0038). This was evident in the Benjamini-Hochberg method of controlling the false discovery rate (FDR) where there was a significant difference comparing Raw versus VS (p = 0.0130) and ONH versus VS (p = 0.0011). There was no difference comparing Raw versus ONH (p = 0.1076).</p><p><strong>Conclusions: </strong>Overall intrasession and intersession repeatability of mfERG amplitude was relatively poor in our sample, though not markedly different than that reported in some other species and normalization methods did result in improved repeatability. As animal models are critical for vision research, these repeatability estimates will prove useful in interpreting future data collected following interventions or in longitudinal monitoring of disease models.</p>","PeriodicalId":11207,"journal":{"name":"Documenta Ophthalmologica","volume":" ","pages":"117-126"},"PeriodicalIF":2.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143604279","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Henrike Marie Nowitzki, Michael B Hoffmann, Khaldoon O Al-Nosairy
{"title":"DTL versus skin electrodes in recording of multifocal pattern electroretinogram and multifocal photopic negative response.","authors":"Henrike Marie Nowitzki, Michael B Hoffmann, Khaldoon O Al-Nosairy","doi":"10.1007/s10633-025-10014-5","DOIUrl":"10.1007/s10633-025-10014-5","url":null,"abstract":"<p><strong>Objective: </strong>To compare the photopic negative response of the multifocal ERG (mfERG<sub>PhNR</sub>) and the multifocal pattern electroretinogram (mfPERG) using DTL electrode (E<sub>DTL</sub>) vs skin electrode (E<sub>SKIN</sub>) in healthy young and old adults.</p><p><strong>Methods: </strong>Ten \"Young\" [20-27 years] and eight \"Old\" [60-72 years] participants took part in this study. The electrophysiological responses were recorded binocularly using E<sub>DTL</sub> and E<sub>SKIN</sub>. 5-way ANOVAs were applied to investigate the following factors on mfERG<sub>PhNR</sub>: i) ELECTRODE, ii) DILATATION, iii) AGE, iv) EYE, and v) ECCENTRICITY. For mfPERG, the same factors, except dilatation, were investigated applying 4-way ANOVAs. These were conducted for amplitude and peak time of different components as well as signal-to-noise-ratio (SNR).</p><p><strong>Results: </strong>Amplitudes of mfERG<sub>PhNR</sub> [mfPERG]-based E<sub>SKIN</sub> recording were reduced to 32-38% [37-38%] compared to E<sub>DTL</sub>, <math><mrow><mi>p</mi> <mo><</mo> <mn>0.001</mn></mrow> </math> . This corresponded to SNR reduction to 80% [60%], <math><mrow><mi>p</mi> <mo><</mo> <mn>0.001</mn></mrow> </math> . E<sub>SKIN</sub> based responses had shorter peak times, by 0.2-0.5 ms for N1 and P1, <math><mrow><mi>p</mi> <mo><</mo> <mn>0.05</mn></mrow> </math> , [P1: 1.5 ms, <math><mrow><mi>p</mi> <mo><</mo> <mn>0.001</mn></mrow> </math> ]. Both age groups had comparable amplitudes and SNRs, but Young had shorter peak times, by 1.5-2.2 ms for N1 and P1, <math><mrow><mi>p</mi> <mo><</mo> <mn>0.05</mn></mrow> </math> [3.7-4.2 ms for N1, P1, N2, <math><mrow><mi>p</mi> <mo><</mo> <mn>0.05</mn></mrow> </math> ]. Compared to dilated recordings, undilated mfERG<sub>PhNR</sub> amplitudes were reduced to 47-87%, <math><mrow><mi>p</mi> <mo><</mo> <mn>0.01</mn></mrow> </math> , and peak times were delayed by 2.0-11.8 ms, <math><mrow><mi>p</mi> <mo><</mo> <mn>0.001</mn></mrow> </math> .</p><p><strong>Conclusions: </strong>mfPERG & mfERG<sub>PhNR</sub> traces were similar for E<sub>DTL</sub> and E<sub>SKIN</sub>. However, for skin electrodes, amplitudes and SNRs were lower and peak times shorter. E<sub>SKIN</sub> thus seem to be a viable alternative in patients in whom the use of corneal electrodes is precluded, e.g., children and disabled patients, but at the expense of SNR and with reference to E<sub>SKIN</sub> normative data.</p>","PeriodicalId":11207,"journal":{"name":"Documenta Ophthalmologica","volume":" ","pages":"137-153"},"PeriodicalIF":2.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12137451/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143968977","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Case of uveitis with increased electroretinographic amplitudes following Nivolumab and Ipilimumab administration for malignant melanoma.","authors":"Kumiko Kato, Ryunosuke Nagashima, Hisashi Matsubara, Yuka Yonekawa, Yuzen Kashima, Keitaro Mizumoto, Mineo Kondo","doi":"10.1007/s10633-025-10011-8","DOIUrl":"10.1007/s10633-025-10011-8","url":null,"abstract":"<p><strong>Purpose: </strong>To report our flicker electroretinographic (ERG) findings in a patient who developed uveitis after treatment with immune checkpoint inhibitors (ICIs) for a metastatic malignant melanoma.</p><p><strong>Methods: </strong>ERGs were used to monitor retinal physiology in a patient with ocular complications following systemic ICI administration. Flicker ERGs were recorded using the RETeval system before and after the ICI treatments.</p><p><strong>Results: </strong>A 45-year-old woman was referred to our ophthalmologic clinic for baseline evaluations prior to initiating nivolumab/ipilimumab therapy. The patient had no ocular or ERG abnormalities at the initial visit, but three weeks after starting nivolumab/ipilimumab, she developed conjunctival hyperemia and tearing. Slit-lamp examination showed anterior chamber inflammation, and the ERGs showed a 40% increase in the amplitude from the baseline. However, optical coherence tomography (OCT) did not show any abnormalities. The anterior segment inflammation and increased ERG amplitude resolved with topical betamethasone. The patient developed significant liver damage after the second administration of nivolumab/ipilimumab, and this therapy was discontinued. Two steroid pulse therapies were followed by tapered oral prednisolone. During the follow-up period, no significant abnormalities were observed in the visual acuity or OCT images, but the ERG amplitudes increased from the first to the eighth month after the liver damage was detected. Five years later, the ERGs and OCT findings were within the normal limits, but she had developed a sunset glow fundus in both eyes.</p><p><strong>Conclusion: </strong>ERGs may be a useful objective test for posterior inflammation induced by administration of ICIs that is not evident in OCT images.</p>","PeriodicalId":11207,"journal":{"name":"Documenta Ophthalmologica","volume":" ","pages":"183-188"},"PeriodicalIF":2.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143613708","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Aflibercept for the treatment of pigmentary retinopathy in Kearns-Sayre syndrome?","authors":"Josef Finsterer","doi":"10.1007/s10633-025-10022-5","DOIUrl":"10.1007/s10633-025-10022-5","url":null,"abstract":"","PeriodicalId":11207,"journal":{"name":"Documenta Ophthalmologica","volume":" ","pages":"197-198"},"PeriodicalIF":2.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144101635","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Scott E Brodie, Promie Faruque, Jorge Pincay, Mohamed Sylla, Xuan Cui, Stephanie Choi, Karen Holopigian, Vivienne Greenstein
{"title":"Comparison of ERG signal-to-noise ratios in simultaneous recordings with skin electrodes and contact lens electrodes.","authors":"Scott E Brodie, Promie Faruque, Jorge Pincay, Mohamed Sylla, Xuan Cui, Stephanie Choi, Karen Holopigian, Vivienne Greenstein","doi":"10.1007/s10633-025-10003-8","DOIUrl":"10.1007/s10633-025-10003-8","url":null,"abstract":"<p><strong>Purpose: </strong>To compare signal-to-noise levels in ERG recordings obtained with contact lens electrodes and adhesive skin electrodes.</p><p><strong>Methods: </strong>23 subjects were studied. Full-field ERGs were recorded according to ISCEV standards simultaneously with ERG-jet corneal contact lens electrodes and LKC Technologies Sensor Strip adhesive skin electrodes. B-wave amplitude or peak-to-peak amplitude was used as a measure of signal strength. Noise was estimated using the \" ± averaging method.\" Comparisons between signal strength, absolute noise levels, and signal-to-noise ratios between contact lens and skin electrodes were performed by linear regression.</p><p><strong>Results: </strong>Comparisons of signal strength for LA 3, 30-Hz, DA 0.01, and DA 3 responses, yielded regression coefficient ß values of 0.37, 0.39, 0.39, and 0.35, respectively. For the entire data set, the regression coefficient ß value was 0.36 (95% confidence limits 0.34 - 0.38). The grand average ERG noise for all ERG stimuli was 13.8 µV for contact lens electrodes and 13.0 µV for skin electrodes (not significant: p = 0.66 for paired t-test). For signal-to-noise ratios, regression ß coefficients for contact lens and adhesive skin electrodes for LA 3, 30-Hz, DA 0.01, and DA 3 stimuli were 0.25, 0.39, 0.50, and 0.36 respectively. The ß coefficient for the amalgamated data set was 0.33 (95% confidence limits 0.30- 0.36).</p><p><strong>Conclusions: </strong>Overall ERG amplitudes obtained with skin electrodes were 1/3 those obtained with contact lens electrodes. Absolute noise levels were similar. Signal-to-noise levels with skin electrodes were 1/3 those seen with contact lens electrodes. Implications for signal-averaging in clinical applications are discussed.</p>","PeriodicalId":11207,"journal":{"name":"Documenta Ophthalmologica","volume":" ","pages":"127-135"},"PeriodicalIF":2.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143187592","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Jorge Pincay, Bruna Lopes da Costa, Peter M J Quinn, Marilyn Rodriguez, Ashley Zhou, Maximilian D Kong, Janet R Sparrow, Stephen H Tsang
{"title":"Phenotypic spectrum and theoretical prime editing analysis of WDR19-mediated retinal degeneration.","authors":"Jorge Pincay, Bruna Lopes da Costa, Peter M J Quinn, Marilyn Rodriguez, Ashley Zhou, Maximilian D Kong, Janet R Sparrow, Stephen H Tsang","doi":"10.1007/s10633-025-10016-3","DOIUrl":"10.1007/s10633-025-10016-3","url":null,"abstract":"<p><strong>Purpose: </strong>The ciliopathies are a broad category of pleiotropic disease with numerous genes involved in pathogenesis. One of the genes implicated in the ciliopathies is WDR19, which can lead to several syndromic diseases that may manifest with a form of retinal degeneration. There is a lack of reporting on the WDR19-mediated retinal phenotype, and therefore warrants more clinical investigation. With retinal degeneration being the most prevalent symptom among the ciliopathies, phenotypic reporting is needed to enhance understanding of pathogenesis.</p><p><strong>Methods: </strong>Clinical, imaging, and diagnostic records of patients with two variants in the WDR19 gene and a form of retinal degeneration were retrospectively reviewed. Two different individuals analyzed the variants in the studied patients using SnapGene (Version 4.3.11), employing both the canonical NGG PAM and the NGA PAM prime editors.</p><p><strong>Results: </strong>Four patients from three families each carrying biallelic variants the WDR19 gene were reviewed. Two of the six unique variants identified among the patients were novel. Two identical twin patients presented with a recessive Stargardt (STGD)-like phenotype while the other two patients presented with a clinical picture more characteristic of retinitis pigmentosa (RP). Three of four patients had thickened external limiting membrane (ELM) on spectral-domain optical coherence tomography (SD-OCT). Full-field electroretinograms (ffERG) performed on two patients with the STGD-like phenotype showed a cone-rod pattern of degeneration. Quantitative short-wave fundus autofluorescence (qAF) performed on the two STGD-like patients was within the 95th percentile of normal eyes.</p><p><strong>Conclusions: </strong>WDR19-mediated retinal degeneration is heterogenous in presentation, and in some cases can phenocopy STGD. The foveal sparing phenotype was apparent in three of four patients with relatively preserved visual acuity, which may serve as a retinal prognostic factor in patients with pathogenic variants in WDR19. All six variants evaluated are correctable by prime editing, establishing a foundation for future research in therapeutic development.</p>","PeriodicalId":11207,"journal":{"name":"Documenta Ophthalmologica","volume":" ","pages":"155-167"},"PeriodicalIF":2.6,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12137442/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143778987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}