Frequency of Retinopathy of Prematurity in Infants Born Before 34 Weeks of Gestation
DOI:
https://doi.org/10.70749/ijbr.v3i6.1680Keywords:
Risk, Patients, ROP, Newborn, Retina, HyperoxiaAbstract
Background: Retinopathy of prematurity (ROP) is a proliferative retinal disorder that primarily affects preterm infants with incomplete retinal vascularization. Objective: To determine the frequency of ROP in infants born before 34 weeks of gestation and identify associated risk factors. Methods: This Cross-sectional study was conducted at the Hameed Latif Hospital, Lahore from 1st Oct 24 to 31st March 2025. Data were collected through non-probability consecutive sampling. The calculated sample size was 124 neonates. For each enrolled participant, demographic and clinical data including gestational age, gender, birth weight, days since admission, and supplemental oxygen therapy status (given/not given and duration in days) were recorded by the researcher on a predesigned proforma. Results: Out of 124 infants, 19 (15.3%) were diagnosed with ROP. A significant association was found between ROP and gestational age <30 weeks (p = 0.002), birth weight <1500 grams (p = 0.01), and supplemental oxygen therapy (p = 0.04). Prolonged oxygen therapy (>5 days) further increased ROP risk (p = 0.03). Most ROP cases were early stage (Stage 1: 47.4%, Stage 2: 31.6%, Stage 3: 21.0%). No cases of Stage 4 or 5 were observed. Conclusion: It is concluded that ROP is a relatively common complication among preterm infants born before 34 weeks. Lower gestational age, low birth weight, and prolonged oxygen therapy significantly increase the risk. These findings reinforce the need for standardized screening and regulated oxygen administration in neonatal care to reduce preventable visual morbidity.
Downloads
References
1. Kim SJ, Port AD, Swan R, Campbell JP, Chan RVP, Chiang MF. Retinopathy of prematurity: a review of risk factors and their clinical significance. Surv Ophthalmol. 2018;63(5):618-37.
https://doi.org/10.1016/j.survophthal.2018.04.002
2. Hong EH, Shin YU, Cho H. Retinopathy of prematurity: a review of epidemiology and current treatment strategies. Clin Exp Pediatr. 2022;65(3):115-26.
https://doi.org/10.3345/cep.2021.00773
3. Strube YNJ, Wright KW. Pathophysiology of retinopathy of prematurity. Saudi J Ophthalmol. 2022;36(3):239-42.
https://doi.org/10.4103/sjopt.sjopt_18_22
4. Liu T, Tomlinson LA, Yu Y, Ying GS, Quinn GE, Binenbaum G; G-ROP Study Group. Changes in institutional oxygen saturation targets are associated with an increased rate of severe retinopathy of prematurity. J American Ass Peditr Ophthalmol Strabismus. 2022;26(1):18.e1-18.e6.
https://doi.org/10.1016/j.jaapos.2021.10.002
5. Schmidt B, Whyte RK. Oxygen saturation target ranges and alarm settings in the NICU: What have we learnt from the neonatal oxygenation prospective meta-analysis (NeOProM)? Semin Fetal Neonatal Med. 2020;25(2):101080.
https://doi.org/10.1016/j.siny.2020.101080
6. Chiang MF, Quinn GE, Fielder AR, Ostmo SR, Paul Chan RV, Berrocal A, et al. International classification of retinopathy of prematurity, third edition. Ophthalmology. 2021;128(10):e51-68.
https://doi.org/10.1016/j.ophtha.2021.05.031
7. Freitas AM, Mörschbächer R, Thorell MR, Rhoden EL. Incidence and risk factors for retinopathy of prematurity: a retrospective cohort study. Int J Retina Vitreous. 2018;4:20.
https://doi.org/10.1186/s40942-018-0125-z
8. Braimah IZ, Enweronu-Laryea C, Sackey AH, Kenu E, Agyabeng K, Beyuo V, et al. Incidence and risk factors of retinopathy of prematurity in Korle- Bu Teaching Hospital: a baseline prospective study. BMJ Open. 2020;10:e035341.
https://doi.org/10.1136/bmjopen-2019-035341
9. Tiryaki Demir S, Karapapak M, Uslu HS, Bulbul A, Guven D, Dirim AB, et al. Retinopathy screening results of late-preterm infants born at 32-35 weeks of gestational age. Graefes Arch Clin Exp Ophthalmol. 2019;257(6):1325-29.
https://doi.org/10.1007/s00417-019-04298-y
10. Ugurlu A. Frequency of retinopathy of prematurity (ROP) in infants screened for ROP: two years follow-up results of a single center in Turkey. Biomedicine (Taipei). 2021 Sep 1;11(3):38-42. PMID: 35223409; PMCID: PMC8823495.
https://doi.org/10.37796/2211-8039.1188.
11. Zeeshan, M., Ali, A., Qadir, W., Rafique, A., Rafiq, A., & Younas, I. (2024). Frequency and Risk Factors Associated with Retinopathy of Prematurity: A Single Centre Study: Frequency and Risk Factors Associated with Retinopathy of Prematurity. Pakistan Journal of Health Sciences, 5(10), 19–23.
https://doi.org/10.54393/pjhs.v5i10.2147
12. Fierson WM. Screening examination of premature infants for retinopathy of prematurity. Pediatrics. 2018; 142(6):e20183061.
https://doi.org/10.1542/peds.2018-3810
13. Li, L., Gao, Y., Chen, W. et al. Screening for retinopathy of prematurity in North China. BMC Ophthalmol 22, 251 (2022).
https://doi.org/10.1186/s12886-022-02470-3
14. Dr. Sumedha Ghai, & Dr. Syka Rafiq. (2025). PROFILE OF ASYMMETRICAL RETINOPATHY OF PREMATURITY IN TWINS. Journal of Population Therapeutics and Clinical Pharmacology, 32(1), 1244-1249.
https://doi.org/10.53555/q3qr7a35
15. Martins, T. G. dos S., Andreghetto, L. de A. F., Brito, R. M., Provenzano, L. B., & Fowler, S.. (2022). Evaluation of the prematurity retinopathy and other eye changes in the newborn. Einstein (são Paulo), 20, eAO6692.
https://doi.org/10.31744/einstein_journal/2022AO6692
16. Stahl A, Sukgen EA, Wu WC, et al. Effect of intravitreal aflibercept vs laser photocoagulation on treatment success of retinopathy of prematurity: the FIREFLEYE randomized clinical trial. JAMA. 2022;328:348e359.
Downloads
Published
Issue
Section
License
Copyright (c) 2025 Indus Journal of Bioscience Research

This work is licensed under a Creative Commons Attribution 4.0 International License.