In phase 1: tear samples will be collected from premature babies +/- 24 hours of ROP screening. Samples will be collecte clinical trials

The investigation of eye tear film proteins to see if there is an association with the stage of an eye condition called Retinopathy of Prematurity (ROP) which can occur in some premature babies; and the investigation of eye nerve development in these babies

This study looks for early signs of an eye condition called Retinopathy of Prematurity (ROP) in premature babies. Researchers will check proteins in tears and how babies' eyes respond to light to find new ways to detect ROP and prevent vision problems early on.