IRCT20180718040523N1 IRCT 2018-08-04 Tehran University of Medical Sciences Effect of Breast milk and Sucrose on Pain and Coping with Stress Comparing the Effects of the Breast milk and Sucrose on Pain and Coping with Stress during Retinopathy Examination of Premature Infants 2018-08-05 anticipated 63 Complete https://irct.ir/trial/32728 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Used, Assignment: Parallel, Purpose: Treatment, Randomization description: Convenience sampling (Anyone who had the inclusion criteria entered the study). and random assignment are sealed envelope (Samples of sucrose, breast milk and distilled water are placed inside the envelopes, and before sampling, one of the envelopes is selected by the secretary and the intervention is done), Blinding description: An eye examiner will be unaware of the type of intervention. The parents and, subsequently, the infant will be unaware of the type of substance received. Evaluators the film will be unaware of the intervention. 3 Retinopathy of Prematurity. Intervention 1: Intervention group: In this group infants 0.5 mililiter per kilogram from their mother milk recive orally 2 minutes before examination. Intervention 2: Intervention group: In this group infants 0.5 mililiter per kilogram from sucrose 24% sulotion recive orally 2 minutes before examination. Intervention 3: Control group: In this group infants 0.5 mililiter per kilogram from distilled water recive orally 2 minutes before examination. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is there is no information yet