raremaprare-disease reference indexOrphadata 2026-06-23 · HPO 2026-09-01
ORPHA:364055

Severe early-childhood-onset retinal dystrophy

Synonyms: EOSRD · Early-onset severe retinal dystrophy · SECORD

Type
Disease
Group
Disorder
Inheritance
Autosomal recessive
Age of onset
Childhood, Infancy
Status
active

Severe early childhood onset retinal dystrophy (SECORD) is an inherited retinal dystrophy characterized by a severe congenital night blindness, progressive retinal dystrophy and nystagmus. Best corrected visual acuity can reach 0.3 in the first decade of life and can pertain well into the second decade of life. Blindness is often complete by the age of 30 years.

1

Names in Orphadata languages

12 of 12 languages
LangNameSynonyms
enSevere early-childhood-onset retinal dystrophyEOSRD · Early-onset severe retinal dystrophy · SECORD
frDystrophie rétinienne sévère de l'enfanceEOSRD · SECORD
deSchwere Netzhautdystrophie mit Beginn in früher KindheitFrühbeginnende schwere Netzhautdystrophie · SECORD · Schwere frühkindliche Netzhautdegeneration · EOSRD
esDistrofia retiniana grave de inicio en la infancia tempranaDistrofia retiniana grave de inicio precoz · EOSRD · SECORD
itDistrofia retinica grave a esordio nella prima infanziaDistrofia retinica grave a esordio precoce · EOSRD · SECORD
nlErnstige retinale dystrofie met aanvang in de vroege kindertijdEOSRD · SECORD · Vroeg beginnende ernstige retinale dystrofie
ptDistrofia da retina grave com início precoce na infância
plCiężka dystrofia siatkówki o początku w wieku wczesnodziecięcymCiężka dystrofia siatkówki o wczesnym początku · EOSRD · SECORD
csTěžká dystrofie sítnice s časným nástupemEOSRD · SECORD · Těžká dystrofie sítnice s časným nástupem v dětském věku
ukТяжка дистрофія сітківки, що починається в ранньому дитинствіРання важка дистрофія сітківки · EOSRD · SECORD
zh儿童早期重度视网膜营养不良早发性严重视网膜营养不良
trErken çocukluk döneminde başlayan ağır retina distrofisiEOSRD · SECORD · Erken-başlangıçlı ağır retina distrofisi

Definition in:

2

Cross-references

qualifier = Orphanet mapping relation
SourceCodeQualifierICD relationValidation
OMIM608133NTBTvalidated
OMIM610125NTBTvalidated
OMIM614186NTBTvalidated
ICD-10H35.5NTBTattributedvalidated
ICD-119B70NTBTattributedvalidated
MONDO0009549Evalidated
MeSHC565741Evalidated
UMLSC1858080Evalidated

E exact · NTBT this ORPHAcode is narrower than the target · BTNT broader than the target · ND not decided.

3

Classification

Preferential parent (Orphanet linearisation):

Parents in the classifications (2):

No children.

4

Genes

9 direct
GeneAssociationStatusHGNCEnsemblOMIMLocusNameSource of validation
ALMS1Disease-causing germline mutation(s) inAssessedHGNC:428ENSG000001161276068442p13.1ALMS1 centrosome and basal body associated protein40294858[PMID]
CABP4Disease-causing germline mutation(s) inAssessedHGNC:1386ENSG0000017554460896511q13.2calcium binding protein 440294858[PMID]
KCNJ13Disease-causing germline mutation(s) inAssessedHGNC:6259ENSG000001154746032082q37.1potassium inwardly rectifying channel subfamily J member 1340294858[PMID]
LCA5Disease-causing germline mutation(s) inAssessedHGNC:31923ENSG000001353386114086q14.1lebercilin LCA523946133[PMID]
LRATDisease-causing germline mutation(s) inAssessedHGNC:6685ENSG000001212076048634q32.1lecithin retinol acyltransferase22570351[PMID]
OTX2Disease-causing germline mutation(s) inAssessedHGNC:8522ENSG0000016558860003714q22.3orthodenticle homeobox 240294858[PMID]
PRPH2Disease-causing germline mutation(s) inAssessedHGNC:9942ENSG000001126191796056p21.1peripherin 223847139[PMID]
RPE65Disease-causing germline mutation(s) inAssessedHGNC:10294ENSG000001167451800691p31.3retinoid isomerohydrolase RPE65
SPATA7Disease-causing germline mutation(s) inAssessedHGNC:20423ENSG0000004231760986814q31.3spermatogenesis associated 721310915[PMID]
5

Prevalence and incidence

1 record
TypeClassValueAreaQualificationValidationSource
Point prevalenceUnknown—WorldwideClass onlyValidatedPr Birgit LORENZ[EXPERT]_Dr Markus PREISING[EXPERT]

Value is Orphadata's ValMoy: the mean estimate per 100 000 for prevalence and incidence, the number of cases or families for case reports.

6

HPO phenotypes

33 annotations · validated 2021-05-12
HPOTerm (as annotated by Orphanet)Diagnostic
Frequent (79-30%)
HP:0001103Abnormal macular morphology
HP:0007695Abnormal pupillary light reflex
HP:0007703Abnormality of retinal pigmentation
HP:0007843Attenuation of retinal blood vessels
HP:0007737Bone spicule pigmentation of the retina
HP:0000551Color vision defect
HP:0000662Nyctalopia
HP:0000639Nystagmus
HP:0012426Optic disc drusen
HP:0000543Optic disc pallor
HP:0007994Peripheral visual field loss
HP:0007663Reduced visual acuity
HP:0000546Retinal degeneration
HP:0007814Retinal pigment epithelial mottling
HP:0000550Undetectable electroretinogram
HP:0000505Visual impairment
Occasional (29-5%)
HP:0011488Abnormal corneal endothelium morphology
HP:0000622Blurred vision
HP:0000533Chorioretinal atrophy
HP:0012434Delayed social development
HP:0000577Exotropia
HP:0007793Granular macular appearance
HP:0001116Macular coloboma
HP:0011342Mild global developmental delay
HP:0000545Myopia
HP:0000613Photophobia
HP:0007787Posterior subcapsular cataract
HP:0011484Posterior synechiae of the anterior chamber
HP:0002172Postural instability
HP:0000541Retinal detachment
HP:0007722Retinal pigment epithelial atrophy
HP:0002317Unsteady gait
Very rare (<4-1%)
HP:0012230Rhegmatogenous retinal detachment

Annotation source: 28689169[PMID]_32865313[PMID]_30150358[PMID]_20811047[PMID]

7

Sources for this card