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Article History

Received: 6 August 2018

Accepted: 12 November 2018

First Online: 26 November 2018

Ethics approval and consent to participate

: Ethics approval was obtained from Review Committee of Collage of Health Sciences, Department of Physiology, Addis Ababa University. After information was provided about the objectives and importance of the study, verbal informed consent was obtained from the guardians by inviting them to the school before eye examination. Since the study was conducted to determine the prevalence of color blindness without any intervention, the study does not need written consent. Verbal consent procedure was approved by ethics committee of Department of Physiology, Addis Ababa University. There were no potential risks that may cause any harm in any form on the study subjects. Coding and aggregate reporting were used to eliminate respondents’ identification and ensureanonymity and the data will not transfer to the third body and was used only for the research purpose to ensure confidentiality.

: Not applicable

: All the authors declare that they have no competing interests.

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