Premature Clinical Trial
Official title:
Impact of Prematurity on the Morphological and Tomographic Aspect of the Papilla
Verified date | August 2019 |
Source | Nantes University Hospital |
Contact | n/a |
Is FDA regulated | No |
Health authority | |
Study type | Observational [Patient Registry] |
The purpose of this protocol is to study the consequences of prematurity on the optic nerve.
Indeed, the work already carried out on the subject suggests that prematurity induces
suffering of the optic nerve with a loss of optical fibre, an essential element in the
transmission of the visual nerve signal to the brain.
The investigators will therefore study two populations: a population of premature infants
aged 5 to 10 years, and a control population of term infants.
The examinations performed are painless, non-invasive and non-irradiating. To date, there are
no known adverse reactions to these tests. These examinations are a photo of the fundus
(retinophotography), a pachymetry (measurement of the thickness of the non-contact cornea),
an OCT RNFL (optical coherence tomography, scanner of the non-irradiating non-painful optical
nerve) and the taking of the IOP (intraocular pressure).
They aim to measure the main morphological characteristics of the eye and the optic nerve.
This is a prospective observational study. The inclusion and measurements necessary for the
study are made on the day of the consultation.
The expected results will provide new data on this population of premature infants, allowing
for better management if a pathology involving the optic nerve were to occur at any age in
these patients.
Status | Not yet recruiting |
Enrollment | 100 |
Est. completion date | September 2, 2020 |
Est. primary completion date | March 2, 2020 |
Accepts healthy volunteers | No |
Gender | All |
Age group | 5 Years to 10 Years |
Eligibility |
Inclusion Criteria: - For patients: - between 5 and 10 years old - Premature births: before 37 weeks of amenorrhea - To be able to benefit from the examinations necessary for the study (being able to set a target, to install correctly on the machines) For control: - Aged between 5 and 10 years old - Born after 37 SA - No known ophthalmological pathologies - To be able to benefit from the examinations necessary for the study (being able to set a target, to install correctly on the machines) Exclusion Criteria: - Patients who cannot benefit from the examinations (patients in wheelchairs, whose psychomotor delay prevents a good understanding of the examination and the need to set a target) - patient under the protection of justice. |
Country | Name | City | State |
---|---|---|---|
n/a |
Lead Sponsor | Collaborator |
---|---|
Nantes University Hospital |
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Compare the thickness of the optical fibres measured in OCT RNFL between premature subjects and controls. | The examinations performed are painless, non-invasive and non-irradiating. To date, there are no known adverse reactions to these tests. These examinations are a photo of the fundus (retinophotography), a pachymetry (measurement of the thickness of the non-contact cornea), an OCT RNFL (optical coherence tomography, scanner of the non-irradiating non-painful optical nerve) and the taking of the IOP (intraocular pressure). They aim to measure the main morphological characteristics of the eye and the optic nerve. We will therefore study two populations: a population of premature infants aged 5 to 10 years, and a control population of term infants. |
10 minutes | |
Secondary | Compare the cup/disc ratio | Compare the cup/disc ratio (optic nerve excavation, a criterion well used in the study of glaucoma) between the premature population and the control population. | 20 seconds | |
Secondary | eye length | compare the measurement of the axial eye length (eye length) between the two populations. | 10 seconds | |
Secondary | Intraocular tension | compare the intraocular tension (which can lead to a loss of optical fibre if too high, a criterion measured to avoid any bias induced by hypertonia on the thickness of the optical fibres) between the two populations. | 20 seconds | |
Secondary | Pachymetry | compare pachymetry (corneal thickness, measurement that may interfere with intraocular pressure measurement) between premature born patients and controls | 20 seconds | |
Secondary | refractive measurements | compare refractive measurements (myopia, hyperopia, astigmatism) between the two populations | 20 seconds |
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