Delayed Visual Maturation
Conditions
Keywords
Infant, Premature, Diseases
Brief summary
The purpose is to describe the level of visual maturation of premature newborns at term equivalent age. The secondary purpose is to determine factors associated to an altered level of visual maturation, through an exploratory approach.
Interventions
None listed
Sponsors
Central Hospital, Nancy, France
Study design
Observational model
COHORT
Time perspective
CROSS_SECTIONAL
Eligibility
Sex/Gender
ALL
Age
6 Weeks to 10 Weeks
Healthy volunteers
No
Inclusion criteria
* Infants born before 33 weeks of amenorrhea and hospitalized at CHRU Nancy
Exclusion criteria
* Parental opposition * Ocular malformation * Face malformation * Cranial stenosis * Chromosomal abnormality
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Measurement of Visual Acuity by Baby Vision Cards | Baseline | Baby Vision cards are the French equivalent of Teller Cards - The measurement will be done at the term equivalent age : at the inclusion |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Control of the Retina by Retinal Camera | Baseline | Use of Retcam to diagnose Retinopathy of Prematurity - The measurement will be done at the term equivalent age : at the inclusion |
| Measurement of cycloplegic refraction by mydriaticum 0.5% | Baseline | The measurement will be done at the term equivalent age : at the inclusion |
| Presence, absence of light reflex by clinical evaluation | Baseline | The measurement will be done at the term equivalent age : at the inclusion |
| Presence, absence or abnormality of visual fixation by clinical observation | Baseline | The measurement will be done at the term equivalent age : at the inclusion |
| Analysis of visual cortex with MRI | Baseline | Determinants of indices of cerebral volume in former very premature infants and their relation to visual maturation. The measurement will be done at the term equivalent age : at the inclusion |
Outcome results
None listed