Evidence map›Paper›PMID 35157951›Full record

Observational studyOphthalmology2022

Genotypic and Phenotypic Spectrum of Foveal Hypoplasia: A Multicenter Study.

Helen J Kuht, Gail D E Maconachie, Jinu Han, Line Kessel, Maria M van Genderen, Rebecca J McLean, Michael Hisaund, Zhanhan Tu, Richard W Hertle, Karen Gronskov and 29 more

Open access · hybridAbstract readMulticenter StudyObservational Study
In one paragraph

Observational study in Ophthalmology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
6.5field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

45 citing papers in PubMed, 63 citations in OpenAlex.

  1. The relationship between foveal anatomy and retinal function in oculocutaneous albinism.Documenta ophthalmologica. Advances in ophthalmology · 2026
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  6. 3D epigenomic landscape of the human retinal pigment epithelium.Proceedings of the National Academy of Sciences of the United States of America · 2026
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  10. "Time to See" in Infantile Nystagmus.Investigative ophthalmology & visual science · 2026
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  13. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

39 authors at 20 institutions in 12 countries.

Helen J KuhtThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom; Foveal Development Investigators Group.
Gail D E MaconachieThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom; Academic Unit of Ophthalmology and Orthoptics, University of Sheffield, Sheffield, United Kingdom; Foveal Development Investigators Group.
Jinu HanInstitute of Vision Research, Department of Ophthalmology, Gangnam Severance Hospital, Yonsei University College of Medicine, Seoul, Korea; Foveal Development Investigators Group.
Line KesselDepartment of Ophthalmology, Rigshospitalet, Denmark; Department of Clinical Medicine, University of Copenhagen, Copenhagen, Denmark; Foveal Development Investigators Group.
Maria M van GenderenDepartment of Ophthalmology, University Medical Centre Utrecht, Utrecht, The Netherlands; Bartiméus Diagnostic Centre for Complex Visual Disorders, Zeist, The Netherlands; Foveal Development Investigators Group.
Rebecca J McLeanThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom.
Michael HisaundThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom.
Zhanhan TuThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom; Foveal Development Investigators Group.
Richard W HertleDepartment of Ophthalmology, The Rebecca D. Considine Research Institute and The Children's Vision Center, Akron Children's Hospital, Akron, Ohio; Department of Surgery, The Northeastern Ohio Medical University, Rootstown, Ohio; Foveal Development Investigators Group.
Karen GronskovDepartment of Clinical Genetics, Rigshospitalet-Kennedy Center, Glostrup, Denmark; Foveal Development Investigators Group.
Dayong BaiDepartment of Ophthalmology, Beijing Children's Hospital, National Center for Children's Health, Capital Medical University, Beijing, China; Foveal Development Investigators Group.
Aihua WeiDepartment of Dermatology, Beijing Tongren Hospital, Capital Medical University, Beijing, China; Foveal Development Investigators Group.
Wei LiBeijing Key Laboratory for Genetics of Birth Defects, Beijing Pediatric Research Institute; Rare Disease Center, National Center for Children's Health; MOE Key Laboratory of Major Diseases in Children, Beijing Children's Hospital, Capital Medical University, Beijing, China; Foveal Development Investigators Group.
Yonghong JiaoBeijing Tongren Eye Centre, Beijing Tongren Hospital, Capital Medical University, Beijing Ophthalmology and Visual Science Key Lab, Beijing, China; Foveal Development Investigators Group.
Vasily SmirnovSorbonne Université, Institut National de la Santé et de la Recherche Médicale, Centre National de la Recherche Scientifique, Institut de la Vision, Paris, France; Exploration de la Vision et Neuro-Ophtalmologie, CHU de Lille, Lille, France; Foveal Development Investigators Group.
Jae-Hwan ChoiDepartment of Neurology, Pusan National University School of Medicine, Research Institute for Convergence of Biomedical Science and Technology, Pusan National University Yangsan Hospital, Yangsan, South Korea; Foveal Development Investigators Group.
Martin D TobinDepartment of Health Sciences, University of Leicester, Leicester, United Kingdom; Foveal Development Investigators Group.
Viral ShethThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom; Academic Unit of Ophthalmology and Orthoptics, University of Sheffield, Sheffield, United Kingdom.
Ravi PurohitThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom.
Basu DawarThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom.
Ayesha GirachThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom.
Sasha StrulDepartment of Ophthalmology and Visual Neurosciences, University of Minnesota, Minneapolis, Minnesota; Foveal Development Investigators Group.
Laura MayDepartment of Ophthalmology and Visual Neurosciences, University of Minnesota, Minneapolis, Minnesota; Foveal Development Investigators Group.
Fred K ChenCentre for Ophthalmology and Visual Science (incorporating Lions Eye Institute), The University of Western Australia, Crawley, Australia; Foveal Development Investigators Group.
Rachael C Heath JefferyCentre for Ophthalmology and Visual Science (incorporating Lions Eye Institute), The University of Western Australia, Crawley, Australia; Foveal Development Investigators Group.
Abdullah AamirThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom.
Ronaldo SanoRetina and Vitreous Sector of Santa Casa de Misericórdia de São Paulo, São Paulo, Brazil; Foveal Development Investigators Group.
Jing JinSidney Kimmel Medical College of Thomas Jefferson University, Nemours Children's Health, Philadelphia, Pennsylvania; Nemours Children's Health, Wilmington, Delaware.
Brian P BrooksOphthalmic Genetics and Visual Function Branch, National Eye Institute, National Institutes of Health, Bethesda, Maryland; Foveal Development Investigators Group.
Susanne KohlCentre for Ophthalmology, Institute for Ophthalmic Research, University Tübingen, Tübingen, Germany; Foveal Development Investigators Group.
Benoit ArveilerRare Diseases, Genetics and Metabolism, INSERM U1211, University of Bordeaux, Bordeaux, France; Molecular Genetics Laboratory, Bordeaux University Hospital, Bordeaux, France; Foveal Development Investigators Group.
Lluis MontoliuNational Centre for Biotechnology (CNB-CSIC) and CIBERER-ISCIII, Madrid, Spain; Foveal Development Investigators Group.
Elizabeth C EngleDepartments of Neurology and Ophthalmology, Boston Children's Hospital and Harvard Medical School, Boston, Massachusetts; Howard Hughes Medical Institute, Chevy Chase, Maryland; Foveal Development Investigators Group.
Frank A ProudlockThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom.
Garima NishadInternational Institute of Information Technology, Hyderabad, India.
Prateek PaniInternational Institute of Information Technology, Hyderabad, India.
Girish VarmaInternational Institute of Information Technology, Hyderabad, India; Foveal Development Investigators Group.
Irene GottlobThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom; Foveal Development Investigators Group; Cooper Neurological Institute, Cooper Medical School of Rowan University, Camden, New Jersey.
Mervyn G ThomasThe University of Leicester Ulverscroft Eye Unit, Department of Neuroscience, Psychology and Behaviour, University of Leicester, Leicester, United Kingdom; Foveal Development Investigators Group. Electronic address: mt350@le.ac.uk.
University of Leicester · GBInternational Institute of Information Technology, Hyderabad · INBeijing Tongren Hospital · CNCapital Medical University · CNLions Eye Institute · AUUniversity of Minnesota · USAkron Children's Hospital · USBernstein Center for Computational Neuroscience Tübingen · DEBoston Children's Hospital · USInstitut de la Vision · FRInstituto de Salud Carlos III · ESIrmandade da Santa Casa de Misericórdia de São Paulo · BRNational Institutes of Health · USPusan National University Yangsan Hospital · KRRigshospitalet · DKThomas Jefferson University · USUniversité de Bordeaux · FRUniversity Medical Center Utrecht · NLUniversity of Copenhagen · DKYonsei University · KR

Funding

Mouse Neurodevelopmental Behavior CoreU54HD090255 · NICHD · BOSTON CHILDREN'S HOSPITAL · PI POMEROY, SCOTT LOREN · 2016 to 2020
$5.2M
Department of Health CL-2017-11-003Howard Hughes Medical InstituteMedical Research Council MC_PC_17171Medical Research Council MC_PC_18054Medical Research Council MC_PC_19043Medical Research Council MR/J004189/1Medical Research Council MR/N004566/1NICHD NIH HHS U54 HD090255Wellcome Trust
6 · The paper itself

Abstract

purposeTo characterize the genotypic and phenotypic spectrum of foveal hypoplasia (FH).

designMulticenter, observational study.

participantsA total of 907 patients with a confirmed molecular diagnosis of albinism, PAX6, SLC38A8, FRMD7, AHR, or achromatopsia from 12 centers in 9 countries (n = 523) or extracted from publicly available datasets from previously reported literature (n = 384).

methodsIndividuals with a confirmed molecular diagnosis and availability of foveal OCT scans were identified from 12 centers or from the literature between January 2011 and March 2021. A genetic diagnosis was confirmed by sequence analysis. Grading of FH was derived from OCT scans.

main outcome measuresGrade of FH, presence or absence of photoreceptor specialization (PRS+ vs. PRS-), molecular diagnosis, and visual acuity (VA).

resultsThe most common genetic etiology for typical FH in our cohort was albinism (67.5%), followed by PAX6 (21.8%), SLC38A8 (6.8%), and FRMD7 (3.5%) variants. AHR variants were rare (0.4%). Atypical FH was seen in 67.4% of achromatopsia cases. Atypical FH in achromatopsia had significantly worse VA than typical FH (P < 0.0001). There was a significant difference in the spectrum of FH grades based on the molecular diagnosis (chi-square = 60.4, P < 0.0001). All SLC38A8 cases were PRS- (P = 0.003), whereas all FRMD7 cases were PRS+ (P < 0.0001). Analysis of albinism subtypes revealed a significant difference in the grade of FH (chi-square = 31.4, P < 0.0001) and VA (P = 0.0003) between oculocutaneous albinism (OCA) compared with ocular albinism (OA) and Hermansky-Pudlak syndrome (HPS). Ocular albinism and HPS demonstrated higher grades of FH and worse VA than OCA. There was a significant difference (P < 0.0001) in VA between FRMD7 variants compared with other diagnoses associated with FH.

conclusionsWe characterized the phenotypic and genotypic spectrum of FH. Atypical FH is associated with a worse prognosis than all other forms of FH. In typical FH, our data suggest that arrested retinal development occurs earlier in SLC38A8, OA, HPS, and AHR variants and later in FRMD7 variants. The defined time period of foveal developmental arrest for OCA and PAX6 variants seems to demonstrate more variability. Our findings provide mechanistic insight into disorders associated with FH and have significant prognostic and diagnostic value.

Indexed as

AlbinismAlbinism, OcularAlbinism, OculocutaneousColor Vision DefectsCytoskeletal ProteinsFovea CentralisHumansMembrane ProteinsVision DisordersCytoskeletal ProteinsFRMD7 protein, humanMembrane ProteinsAHRAlbinismAniridiaFHONDAFoveal hypoplasiaFRMD7GeneticsGenotype-phenotype correlationGPR143Hermansky–Pudlak syndromeOCTPAX6Retinal developmentSLC38A8

Identifiers

PMID35157951
PMCPMC9341240
OpenAlexW4211110399

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.