1
|
Gericke FC, Hanson JVM, Hackenberg A, Gerth-Kahlert C. Visual outcome measures in pediatric myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD). Eur J Paediatr Neurol 2024; 48:113-120. [PMID: 38217965 DOI: 10.1016/j.ejpn.2023.12.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Revised: 12/08/2023] [Accepted: 12/27/2023] [Indexed: 01/15/2024]
Abstract
BACKGROUND Myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) comprises various age-dependent clinical phenotypes and may be monophasic, multiphasic, or chronic. Optic neuritis (ON) is a common manifestation and frequently appears in combination with other MOGAD phenotypes, particularly in young children. Despite permanent structural damage to the retinal nerve fiber layer (RNFL), children often experience complete visual recovery. AIMS To analyze the progression and impact of MOGAD on the visual system of pediatric patients independently of the history of ON. METHODS This retrospective study included children who met specific criteria: myelin oligodendrocyte glycoprotein (MOG) immunoglobulin G (IgG) seropositivity, acute presentation of MOGAD, and written general consent. Main outcome measures were global peripapillary retinal nerve fiber layer (pRNFL) thickness, and near and distance visual acuity, analyzed using descriptive statistics. RESULTS We identified 10 patients with median age of 7.7 years at first event: 7 patients manifested with acute disseminated encephalomyelitis (ADEM) (with ON 5/7, ADEM only 1/7, with transverse myelitis (TM) 1/7), 2 with isolated ON, and 1 patient with neuromyelitis optica spectrum disorder (NMOSD)-like phenotype with ON. Among ON patients, 5/8 were affected bilaterally, with 3 initially diagnosed with unilateral ON but experiencing subsequent involvement of the fellow eye. None of the patients without previous ON showed a deterioration of visual acuity and, if evaluated, a reduction of the pRNFL. CONCLUSION Most pediatric MOGAD-ON patients in our cohort presented with acute vison loss and optic disc edema. All patients achieved complete visual recovery, independent of number of relapses or initial visual loss. The pRNFL thickness decreased for several months and stabilized at reduced levels after 12 months in the absence of further relapses. MOGAD may not have subclinical/'silent' effects on the visual system, as visual acuity and pRNFL were not affected in patients without ON.
Collapse
Affiliation(s)
| | - James V M Hanson
- Department of Ophthalmology, University Hospital Zurich and University of Zurich, Zurich, Switzerland
| | - Annette Hackenberg
- Department of Neuropediatrics, University Children's Hospital Zurich, Switzerland
| | - Christina Gerth-Kahlert
- Department of Ophthalmology, University Hospital Zurich and University of Zurich, Zurich, Switzerland.
| |
Collapse
|
2
|
Havla J, Pakeerathan T, Schwake C, Bennett JL, Kleiter I, Felipe-Rucián A, Joachim SC, Lotz-Havla AS, Kümpfel T, Krumbholz M, Wendel EM, Reindl M, Thiels C, Lücke T, Hellwig K, Gold R, Rostasy K, Ayzenberg I. Age-dependent favorable visual recovery despite significant retinal atrophy in pediatric MOGAD: how much retina do you really need to see well? J Neuroinflammation 2021; 18:121. [PMID: 34051804 PMCID: PMC8164737 DOI: 10.1186/s12974-021-02160-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Accepted: 04/29/2021] [Indexed: 01/03/2023] Open
Abstract
Background To investigate age-related severity, patterns of retinal structural damage, and functional visual recovery in pediatric and adult cohorts of myelin oligodendrocyte glycoprotein antibody-associated disease (MOGAD) optic neuritis (ON). Methods All MOGAD patients from the 5 participating centers were included. Patients with initial manifestation <18 years were included in the pediatric (MOGADped) cohort and patients with ≥18 years in the adult (MOGADadult) cohort. For patients with MOGAD ON, examinations at least ≥6 months after ON onset were included in the analyses. Using spectral domain optical coherence tomography (SD-OCT), we acquired peripapillary retinal nerve fiber layer thickness (pRNFL) and volumes of combined ganglion cell and inner plexiform layer (GCIPL). High- and 2.5% low-contrast visual acuity (HCVA, LCVA) and visual-evoked potentials (VEP) were obtained. Results Twenty MOGADped (10.3±3.7 years, 30 MOGAD ON eyes) and 39 MOGADadult (34.9±11.6 years, 42 MOGAD ON eyes) patients were included. The average number of ON episodes per ON eye was similar in both groups (1.8±1.3 and 2.0±1.7). In both pediatric and adult MOGAD, ON led to pronounced neuroaxonal retinal atrophy (pRNFL: 63.1±18.7 and 64.3±22.9 μm; GCIPL: 0.42±0.09 and 0.44±0.13 mm3, respectively) and moderate delay of the VEP latencies (117.9±10.7 and 118.0±14.5 ms). In contrast, visual acuity was substantially better in children (HCVA: 51.4±9.3 vs. 35.0±20.6 raw letters, p=0.001; LCVA: 22.8±14.6 vs. 13.5±16.4, p=0.028). Complete visual recovery (HCVA-logMAR 0.0) occurred in 73.3% of MOGADped and 31% MOGADadults ON eyes, while 3.3% and 31% demonstrated moderate to severe (logMAR > 0.5) visual impairment. Independent of retinal atrophy, age at ON onset significantly correlated with visual outcome. Conclusion Pediatric MOGAD ON showed better visual recovery than adult MOGAD ON despite profound and almost identical neuroaxonal retinal atrophy. Age-related cortical neuroplasticity may account for the substantial discrepancy between structural changes and functional outcomes. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-021-02160-9.
Collapse
Affiliation(s)
- Joachim Havla
- Institute of Clinical Neuroimmunology, LMU Hospital, Ludwig-Maximilians Universität München, Munich, Germany. .,Data Integration for Future Medicine (DIFUTURE) Consortium, LMU Hospital, Ludwig-Maximilians Universität München, Munich, Germany.
| | - Thivya Pakeerathan
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Carolin Schwake
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Jeffrey L Bennett
- Departments of Neurology and Ophthalmology, Programs in Neuroscience and Immunology, University of Colorado Anschutz Medical Campus, Denver, USA
| | - Ingo Kleiter
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany.,Marianne-Strauß-Klinik, Behandlungszentrum Kempfenhausen für Multiple Sklerose Kranke, Berg, Germany
| | - Ana Felipe-Rucián
- Department of Pediatric Neurology, Vall d'Hebron Hospital, Universitat Autònoma de Barcelona, Barcelona, Spain
| | - Stephanie C Joachim
- Experimental Eye Research Institute, University Eye Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Amelie S Lotz-Havla
- Dr. von Hauner Children's Hospital, LMU Hospital, Ludwig-Maximilians Universität München, Munich, Germany
| | - Tania Kümpfel
- Institute of Clinical Neuroimmunology, LMU Hospital, Ludwig-Maximilians Universität München, Munich, Germany
| | - Markus Krumbholz
- Department of Neurology & Stroke and Hertie Institute for Clinical Brain Research, University Hospital of Tübingen, Tübingen, Germany
| | - Eva M Wendel
- Department of Pediatric Neurology, Olgaspital Stuttgart, Stuttgart, Germany
| | - Markus Reindl
- Clinical Department of Neurology, Medical University of Innsbruck, Innsbruck, Austria
| | - Charlotte Thiels
- Department of Neuropaediatrics and Social Pediatrics, University Hospital of Pediatrics and Adolescent Medicine, Ruhr-University, Bochum, Germany
| | - Thomas Lücke
- Department of Neuropaediatrics and Social Pediatrics, University Hospital of Pediatrics and Adolescent Medicine, Ruhr-University, Bochum, Germany
| | - Kerstin Hellwig
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Ralf Gold
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany
| | - Kevin Rostasy
- Department of Pediatric Neurology, Children's Hospital Datteln, University Witten/Herdecke, Witten, Germany
| | - Ilya Ayzenberg
- Department of Neurology, St. Josef-Hospital, Ruhr-University Bochum, Bochum, Germany. .,Department of Neurology, Sechenov First Moscow State Medical University, Moscow, Russia.
| |
Collapse
|
3
|
Liu R, Kwon M. Increased Equivalent Input Noise in Glaucomatous Central Vision: Is it Due to Undersampling of Retinal Ganglion Cells? Invest Ophthalmol Vis Sci 2020; 61:10. [PMID: 32645132 PMCID: PMC7425734 DOI: 10.1167/iovs.61.8.10] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Accepted: 06/01/2020] [Indexed: 12/30/2022] Open
Abstract
Purpose Recent evidence shows that macular damage is common even in early stages of glaucoma. Here we investigated whether contrast sensitivity loss in the central vision of glaucoma patients is due to an increase in equivalent input noise (Neq), a decrease in calculation efficiency, or both. We also examined how retinal undersampling resulting from loss of retinal ganglion cells (RGCs) may affect Neq and calculation efficiency. Methods This study included 21 glaucoma patients and 23 age-matched normally sighted individuals. Threshold contrast for orientation discrimination was measured with a sinewave grating embedded in varying levels of external noise. Data were fitted to the linear amplifier model (LAM) to factor contrast sensitivity into Neq and calculation efficiency. We also correlated macular RGC counts estimated from structural (spectral-domain optical coherence tomography) and functional (standard automated perimetry Swedish interactive thresholding algorithm 10-2) data with either Neq or efficiency. Furthermore, using analytical and computer simulation approach, the relative effect of retinal undersampling on Neq and efficiency was evaluated by adding the RGC sampling module into the LAM. Results Compared with normal controls, glaucoma patients exhibited a significantly larger Neq without significant difference in efficiency. Neq was significantly correlated with Pelli-Robson contrast sensitivity and macular RGC counts. The results from analytical derivation and model simulation further demonstrated that Neq can be expressed as a function of internal noise and retinal sampling. Conclusions Our results showed that equivalent input noise is significantly elevated in glaucomatous vision, thereby impairing foveal contrast sensitivity. Our findings further elucidated how undersampling at the retinal level may increase equivalent input noise.
Collapse
Affiliation(s)
- Rong Liu
- Department of Ophthalmology and Visual Sciences, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
| | - MiYoung Kwon
- Department of Ophthalmology and Visual Sciences, School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, United States
| |
Collapse
|
4
|
Computational Imaging Prediction of Starburst-Effect Diffraction Spikes. Sci Rep 2018; 8:16919. [PMID: 30446668 PMCID: PMC6240111 DOI: 10.1038/s41598-018-34400-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 10/17/2018] [Indexed: 11/10/2022] Open
Abstract
When imaging bright light sources, rays of light emanating from their centres are commonly observed; this ubiquitous phenomenon is known as the starburst effect. The prediction and characterization of starburst patterns formed by extended sources have been neglected to date. In the present study, we propose a novel trichromatic computational framework to calculate the image of a scene viewed through an imaging system with arbitrary focus and aperture geometry. Diffractive light transport, imaging sensor behaviour, and implicit image adjustments typical in modern imaging equipment are modelled. Characterization methods for key optical parameters of imaging systems are also examined. Extensive comparisons between theoretical and experimental results reveal excellent prediction quality for both focused and defocused systems.
Collapse
|
5
|
Liao M, Zhao H, Liu L, Li Q, Dai Y, Zhang Y, Zhou Y. Training to improve contrast sensitivity in amblyopia: correction of high-order aberrations. Sci Rep 2016; 6:35702. [PMID: 27752122 PMCID: PMC5067678 DOI: 10.1038/srep35702] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 10/04/2016] [Indexed: 02/05/2023] Open
Abstract
Perceptual learning is considered a potential treatment for amblyopia even in adult patients who have progressed beyond the critical period of visual development because adult amblyopes retain sufficient visual plasticity. When perceptual learning is performed with the correction of high-order aberrations (HOAs), a greater degree of neural plasticity is present in normal adults and those with highly aberrated keratoconic eyes. Because amblyopic eyes show more severe HOAs than normal eyes, it is interesting to study the effects of HOA-corrected visual perceptual learning in amblyopia. In the present study, we trained twenty-six older child and adult anisometropic amblyopes while their HOAs were corrected using a real-time closed-loop adaptive optics perceptual learning system (AOPL). We found that adaptive optics (AO) correction improved the modulation transfer functions (MTFs) and contrast sensitivity functions (CSFs) of older children and adults with anisometropic amblyopia. When perceptual learning was performed with AO correction of the ocular HOAs, the improvements in visual function were not only demonstrated in the condition with AO correction but were also maintained in the condition without AO correction. Additionally, the learning effect with AO correction was transferred to the untrained visual acuity and fellow eyes in the condition without AO correction.
Collapse
Affiliation(s)
- Meng Liao
- Department of Optometry and Visual Science, West China Hospital, Sichuan University, Chengdu, China
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Haoxing Zhao
- Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China
- The Key Laboratory on Adaptive Optics, Chinese Academy of Science, Chengdu 610209, China
| | - Longqian Liu
- Department of Optometry and Visual Science, West China Hospital, Sichuan University, Chengdu, China
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qian Li
- Department of Optometry and Visual Science, West China Hospital, Sichuan University, Chengdu, China
- Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yun Dai
- Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China
- The Key Laboratory on Adaptive Optics, Chinese Academy of Science, Chengdu 610209, China
| | - Yudong Zhang
- Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu, China
- The Key Laboratory on Adaptive Optics, Chinese Academy of Science, Chengdu 610209, China
| | - Yifeng Zhou
- CAS Key Laboratory of Brain Function and Disease and School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
| |
Collapse
|
7
|
Hussain Z, Astle AT, Webb BS, McGraw PV. The challenges of developing a contrast-based video game for treatment of amblyopia. Front Psychol 2014; 5:1210. [PMID: 25404922 PMCID: PMC4217344 DOI: 10.3389/fpsyg.2014.01210] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2014] [Accepted: 10/06/2014] [Indexed: 11/30/2022] Open
Abstract
Perceptual learning of visual tasks is emerging as a promising treatment for amblyopia, a developmental disorder of vision characterized by poor monocular visual acuity. The tasks tested thus far span the gamut from basic psychophysical discriminations to visually complex video games. One end of the spectrum offers precise control over stimulus parameters, whilst the other delivers the benefits of motivation and reward that sustain practice over long periods. Here, we combined the advantages of both approaches by developing a video game that trains contrast sensitivity, which in psychophysical experiments, is associated with significant improvements in visual acuity in amblyopia. Target contrast was varied adaptively in the game to derive a contrast threshold for each session. We tested the game on 20 amblyopic subjects (10 children and 10 adults), who played at home using their amblyopic eye for an average of 37 sessions (approximately 11 h). Contrast thresholds from the game improved reliably for adults but not for children. However, logMAR acuity improved for both groups (mean = 1.3 lines; range = 0–3.6 lines). We present the rationale leading to the development of the game and describe the challenges of incorporating psychophysical methods into game-like settings.
Collapse
Affiliation(s)
- Zahra Hussain
- School of Psychology, University of Nottingham Nottingham, UK
| | - Andrew T Astle
- School of Psychology, University of Nottingham Nottingham, UK
| | - Ben S Webb
- School of Psychology, University of Nottingham Nottingham, UK
| | - Paul V McGraw
- School of Psychology, University of Nottingham Nottingham, UK
| |
Collapse
|