Related Experiment Video
Updated: Oct 7, 2025

Monitoring Dynamic Growth of Retinal Vessels in Oxygen-Induced Retinopathy Mouse Model
Published on: April 2, 2021
Treatment outside the Recommended Guidelines for Retinopathy of Prematurity (ROP): Prevalence, Characteristics, and
Daniel Lemaître1,2, Amandine Barjol1, Youssef Abdelmassih1
1Pediatric Ophthalmology Department, Rothschild Foundation Hospital, 75019 Paris, France.
Insights
Nearly 30% of preterm infants with retinopathy of prematurity (ROP) received treatment outside standard guidelines, often for persistent or pre-plus stage ROP. This highlights a need to update ROP treatment criteria based on real-world practices.
Area of Science:
- Ophthalmology
- Neonatology
- Pediatric Medicine
Background:
- Retinopathy of prematurity (ROP) is a significant cause of visual impairment in preterm infants.
- Current treatment guidelines, such as the ETROP guidelines, aim to standardize ROP management.
- Variations in clinical practice may lead to treatments being administered outside these established guidelines.
Purpose of the Study:
- To determine the prevalence and characteristics of preterm infants treated for ROP outside the ETROP guidelines.
- To identify the specific indications for off-guideline ROP treatments.
- To assess the need for revising current ROP treatment criteria.
Main Methods:
- Retrospective monocentric cohort study.
- Inclusion of all preterm infants treated for ROP (laser photoablation or anti-VEGF injection) in the study department.
- Analysis of treatment indications compared to ETROP guidelines, focusing on ROP less severe than pre-threshold type 1.
Main Results:
- 114 infants received ROP treatment; 32 (28.1%) were treated outside ETROP guidelines for both eyes.
- Primary off-guideline indications included persistent stage 2/3 ROP without regression (34.4%) and pre-plus stage ROP (34.4%).
- Other reasons included staging difficulties (21.9%) and logistical issues (3.1%).
Conclusions:
- A significant proportion of preterm infants with ROP receive treatments that deviate from established guidelines.
- Persistent active ROP and pre-plus stage disease are key drivers for off-guideline interventions.
- Current ROP treatment guidelines may require updates to better align with clinical realities and evolving understanding of the disease.
Abstract:
This study aims to assess the prevalence and characteristics of preterm infants with retinopathy of prematurity (ROP) treated outside the recommended guidelines. In this retrospective monocentric cohort, we included all premature children treated in our department for ROP by laser photoablation or anti-VEGF intravitreal injection. The main outcome was treatment of both eyes for ROP less severe than pre-threshold type 1, treated outside ETROP guidelines. A total of 114 children received treatment for ROP in our department, among whom 32 (28.1%) children received treatment for indications outside the ETROP guidelines for both eyes. The indications outside the guidelines were persistent stage 2 or 3 ROP that showed no evidence of regression after 41 weeks of corrected gestational age (11 children; 34.4%), pre-plus stage (11; 34.4%), difficulties in disease staging (7; 21.9%), type 2 ROP with plus disease (2; 6.2%), and treatment due to logistical difficulties (1; 3.1%; hospitalized in neonatal units hundreds of miles away from our department, with no fundus examination possible in the neonatal unit). To resume, in our cohort, 28.1% of children received treatment for ROP less severe than pre-threshold type 1 both eyes. The main indications for off-label treatment were the persistence of active ROP during follow-up and the presence of pre-plus-stage disease. Our data suggest the need to update ROP treatment criteria to reflect real-life practices. Additional studies are required in order to evaluate the long-term benefits and side effects of treatments outside the recommended indications, and to establish revised treatment guidelines.
Related Concept Videos
Pharmacokinetics in Pediatric Patients: Drug Excretion
Open Angle Glaucoma: Treatment
Drugs such as carbonic anhydrase inhibitors, α2- and...

