M Wirth1,2,3,4, M Desjarlais4, S Chemtob3,4, J M Hascoët1,2. 1. Department of Neonatology, University Hospital of Nancy, Nancy, France. 2. EA3450 - DevAH, University of Lorraine, Vandoeuvre les Nancy, France. 3. Department of Pediatrics, Ophthalmology and Pharmacology, University Hospital Sainte-Justine Research Center, Montréal, QC, Canada. 4. Department of Ophthalmology, Maisonneuve-Rosemont Hospital Research Center, Montréal, QC, Canada.