Aim: The aim of the study is to determine the effect of non-nutritive sucking on pain during examination for retinopathy of prematurity.

Method: The study is conducted as a randomized controlled trial. The population of the study is premature newborn who treatment in a neonatal intensive unit. The premature newborns divided into two groups as an intervention and control group according to randomization. After the randomization, non-nutritive sucking is applied to the intervention group. No method is applied to the control group.

A topical anesthetic will be applied to all premature newborns 30 seconds before eye examination. Non-nutritive sucking is applied to the intervention group during the examination for retinopathy of prematurity. No method is applied to the control group during the examination for retinopathy of prematurity

Inclusion Criteria:

• having an examination for retinopathy of prematurity for the first time,
• age was between 28-35 weeks

Exclusion Criteria:

- having no congenital anomalies