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Updated: Feb 9, 2026

Application of Optical Coherence Tomography to a Mouse Model of Retinopathy
Published on: January 12, 2022
The progress of prophylactic treatment in retinopathy of prematurity
Hong-Bing Zhang1, Xiao-Dong Wang1, Kun Xu1
1Eye Institute of Shaanxi Province; Xi'an First Hospital, Xi'an 710002, Shaanxi Province, China.
Insights
Understanding early pathogenesis of retinopathy of prematurity (ROP) is crucial for developing new treatments. Focusing on abnormal retinal vascular development before neovascularization offers novel therapeutic targets for premature infants.
Area of Science:
- Ophthalmology
- Neonatology
- Developmental Biology
Background:
- Retinopathy of prematurity (ROP) is a significant cause of vision loss in premature infants.
- Current treatments for ROP primarily target retinal neovascularization, which occurs late in the disease process.
- Abnormal retinal vascular development, rather than just neovascularization, is increasingly recognized as a key factor in ROP pathogenesis.
Purpose of the Study:
- To review recent research on the pathogenesis of ROP occurring prior to retinal neovascularization.
- To discuss preclinical and clinical studies on preventive treatments for early stages of ROP and its animal model, oxygen-induced retinopathy (OIR).
- To highlight the importance of early-stage mechanisms and signaling pathways in ROP development and identify future therapeutic targets.
Main Methods:
- Review of existing literature on oxygen-induced retinopathy (OIR) and human ROP studies.
- Analysis of research focusing on pathological changes and molecular mechanisms preceding retinal neovascularization.
- Examination of preclinical and clinical data on early-stage ROP interventions.
Main Results:
- Early pathogenesis of ROP involves abnormal retinal vascular development, not solely neovascularization.
- Understanding pre-neovascularization mechanisms offers opportunities for novel therapeutic strategies.
- Research indicates potential for preventive treatments targeting early developmental stages.
Conclusions:
- Shifting focus from treating neovascularization to understanding early pathogenesis is essential for effective ROP intervention.
- Identifying novel targets in early retinal vascular development can lead to strategies promoting healthy blood vessel growth.
- Further research into early-stage OIR and ROP mechanisms is vital for developing proactive treatments to prevent vision impairment in premature infants.
Abstract:
Retinopathy of prematurity (ROP) is a retinal vascular disorder frequently found in premature infants. Different therapeutic strategies have been developed to treat ROP. However, there are still many children with ROP suffering by severe limitations in vision or even blindness. Recently, ROP has been suggested to be caused by abnormal development of the retinal vasculature, but not simply resulted by retinal neovascularization which takes about 4 to 6wk after birth in premature infants. Thus, instead of focusing on how to reduce retinal neovascularization, understanding the pathological changes and mechanisms that occur prior to retinal neovascularization is meaningful, which may lead to identify novel target(s) for the development of novel strategy to promote the healthy growth of retinal blood vessels rather than passively waiting for the appearance of retinal neovascularization and removing it by force. In this review, we discussed recent studies about, 1) the pathogenesis prior to retinal neovascularization in oxygen-induced retinopathy (OIR; a ROP in animal model) and in premature infants with ROP; 2) the preclinical and clinical research on preventive treatment of early OIR and ROP. We will not only highlight the importance of the mechanisms and signalling pathways in regulating early stage of ROP but also will provide guidance for actively exploring novel mechanisms and discovering novel treatments for early phase OIR and ROP prior to retinal neovascularization in the future.
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