National Cohort on Congenital Defects of the Eye

Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
AgeNot listed
SponsorInstitut National de la Santé Et de la Recherche Médicale, France

About this trial

Congenital malformations of the eye comprise various developmental defects including microphthalmia, anophthalmia, aniridia, and anterior segment anomalies (such as Peters and Axenfeld-Rieger anomalies). These malformations are frequently associated with extra-ocular features and intellectual disability. However, little is known about visual outcome, frequency and consequences of extra-ocular features in patients.

The originality of the project will be to include a spectrum of malformation thought to be a phenotypic continuum (anophthalmia, microphthalmia, aniridia, anterior segment dysgnesis). In addition, we aim to conduct a 10 year follow-up of these children, thus allowing determining ocular and neurological outcomes as any other medical event. We should also be able to determine phenotypic factors that would be associated with good or poor visual and neurologic outcomes

Eligibility criteria

This trial does not accept healthy volunteers

Qualifiers

Newborns and/or children from birth to 7 years old, Children from 8 years old affected with the following ocular defects: anophthalmia, microphthalmia, aniridia or anterior segment dysgnesis.whose parents will have properly evaluated risks and benefits of the study and will be given an informed consent to participate the protocol.

Patients affiliated to the "Régime National d'Assurance Maladie". Inclusion of foreign patients will be possible through the French inclusion centers when they agreed to be charged for all medical fees.

Adults affected with the following ocular defects: anophthalmia, microphthalmia, aniridia or anterior segment dysgenesis

Adult patients under guardianship whose guardians will have properly evaluated risks and benefits of the study and will be given an informed consent to participate the protocol. Indeed, intellectual disability may be associated with the ocular defects and we will need to include these patients in order to evaluate incidence of this event.

Disqualifiers

No exclusion criteria

Trial population

Patients from 0 to 7 years old We aim to include most patients born with a developmental ocular defect. Even if most ocular defects are diagnosed during the first months of age, patients could be included in the cohort until 7 years old. Patients over 8 years old: Affected adults and children over 8 years old will not be included in the follow-up subgroup.

Trial design

Design model

Cohort

Time perspective

Other

Treatments tested in this trial

Not listed

Trial groups

No trial groups listed

Trial outcomes

Primary outcomes

1

Visual acuity including distance and near vision, completed if necessary by a low vision evaluation with ETDRS scale, will be conducted with refraction under cycloplegia.

Time frame
Up to 3 visits for patients < 6 years / Up to 2 visits for patients ≥ 6 years and < 8 years / 1 visit for patiens ≥ 8 years
2

An accurate description of the binocular vision by orthoptists

Time frame
Up to 3 visits for patients < 6 years / Up to 2 visits for patients ≥ 6 years and < 8 years / 1 visit for patiens ≥ 8 years
3

Slit lamp examination and fundus with imaging will be useful to specify the disease.

Time frame
Up to 3 visits for patients < 6 years / Up to 2 visits for patients ≥ 6 years and < 8 years / 1 visit for patiens ≥ 8 years
4

An ultrasound measurement will evaluate axial length of eyeball.

Time frame
Up to 3 visits for patients < 6 years / Up to 2 visits for patients ≥ 6 years and < 8 years / 1 visit for patiens ≥ 8 years

Secondary outcomes

1

Ocular defects, unilateral or bilateral involvement

Time frame
Up to 3 visits for patients < 6 years / Up to 2 visits for patients ≥ 6 years and < 8 years / 1 visit for patiens ≥ 8 years
2

Extraocular malformations

Time frame
Up to 3 visits for patients < 6 years / Up to 2 visits for patients ≥ 6 years and < 8 years / 1 visit for patiens ≥ 8 years
3

Quality of life questionnaires

Short-Form Health Survey (SF-36) or equivalent adapted for children (SF-10)

Time frame
Up to 3 visits for patients < 6 years / Up to 2 visits for patients ≥ 6 years and < 8 years / 1 visit for patiens ≥ 8 years

Other outcomes

Sponsors and contacts

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