Back to Journals » Clinical Ophthalmology » Volume 14

Efficacy of WINROP as a Screening Tool for Retinopathy of Prematurity in the East Coast of Malaysia

Authors Lim ZD, Oo KT, Tai ELM, Shatriah I

Received 31 January 2020

Accepted for publication 6 April 2020

Published 24 April 2020 Volume 2020:14 Pages 1101—1106


Checked for plagiarism Yes

Review by Single anonymous peer review

Peer reviewer comments 2

Editor who approved publication: Dr Scott Fraser

Zi Di Lim, 1, 2 Kok Tian Oo, 1, 2 Evelyn Li Min Tai, 1, 2 Ismail Shatriah 1, 2

1Department of Ophthalmology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia; 2Ophthalmology Clinic, Hospital Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia

Correspondence: Ismail Shatriah
Department of Ophthalmology, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian 16150, Kelantan, Malaysia

Purpose: To evaluate the efficacy of the “weight, insulin-like growth factor 1, neonatal retinopathy of prematurity” (WINROP) algorithm in predicting retinopathy of prematurity (ROP) requiring treatment in Malaysia.
Participants: This was a retrospective study involving premature infants with gestational age less than 32 weeks treated from September 2016 to March 2019 in Hospital Universiti Sains Malaysia. Clinical diagnosis was made based on Early Treatment Retinopathy of Prematurity study. Participants’ weekly weight gain since birth was entered in the website (, along with date of birth, gestational age and final clinical examination outcome. WINROP software signals an alarm if an infant is at high risk of developing ROP requiring treatment during weight data entry. By using the alarm status, the sensitivity and specificity of this algorithm for predicting ROP requiring treatment were obtained.
Results: Ninety-two infants were included in this study. An alarm was detected in 67 infants (72.8%). There were a total of 53 infants (54.6%) with no ROP, 15 (16.3%) of whom developed stage 1 ROP, 10 (10.8%) who developed stage 2 ROP and 14 infants (15.2%) who developed stage 3 ROP. In our study, WINROP sensitivity was 95.2% and specificity was 33.8%.
Conclusion: WINROP is recommended as an initial screening tool for premature infants at risk of developing treatment-requiring ROP in Malaysia. It may help to alert clinicians managing severely ill infants when clinical examinations are less possible.

Keywords: WINROP, retinopathy of prematurity, sensitivity, specificity

Creative Commons License This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License. By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

Download Article [PDF]  View Full Text [HTML][Machine readable]