👶 Retinopathy of Prematurity (ROP) Screening Indication
UseUse in the NICU to identify preterm infants who require ROP screening and to schedule the first dilated fundu…
SourceChinese ROP Screening Guideline (2014), Chinese Medical Association ophthalmology group.
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
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Methodology · worked example, guidelines & full notes
The Chinese thresholds (GA < 32 wk or BW < 2000 g) are deliberately broader than US AAP criteria (GA ≤ 30 wk or BW ≤ 1500 g) to reduce missed disease.
When to use
Use in the NICU to identify preterm infants who require ROP screening and to schedule the first dilated fundus examination.
How it works
Screen if GA < 32 wk OR birth weight < 2000 g OR (birth weight ≥ 2000 g but critically ill with prolonged oxygen). First exam at 4–6 weeks postnatal or 32 weeks corrected GA, whichever is later.
Key points
- The Chinese thresholds (GA < 32 wk or BW < 2000 g) are deliberately broader than US AAP criteria (GA ≤ 30 wk or BW ≤ 1500 g) to reduce missed disease.
- Follow-up interval is set by zone, stage and the presence of plus disease; type 1 / threshold disease is referred for laser or anti-VEGF treatment.
- Pre-threshold disease tends to appear around 36 weeks corrected GA and threshold disease around 37 weeks, so timely first screening and follow-up prevent ROP blindness.
References
- [Guideline / primary source]Chinese ROP Screening Guideline (2014), Chinese Medical Association ophthalmology group.
- [Guideline / primary source]Fierson WM, AAP. Screening Examination of Premature Infants for ROP. Pediatrics 2018.
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Gestational age at birth | 30 wk |
|---|---|
| Birth weight | 1500 g |
| Birth weight ≥ 2000 g but critically ill (prolonged oxygen / mechanical ventilation / CPAP) | No |
→ROP screeningScreening needed
- Determination：Meets screening indication (GA < 32 wk; birth weight < 2000 g)
- First-exam timing：Start at 4–6 weeks postnatal OR 32 weeks corrected GA (whichever is later)
- Staging reference：Stage 1 demarcation line / stage 2 ridge / stage 3 extraretinal neovascular proliferation on the ridge / stage 4 tractional retinal detachment (4A no macular detachment · 4B macular detachment) / stage 5 total detachment; also aggressive posterior AP-ROP. Pre-threshold disease around 36 weeks corrected GA, threshold disease around 37 weeks
Verification & sources · governance
FAQ
Frequently asked questions
- What are the limits and cautions when using Retinopathy of Prematurity (ROP) Screening Indication?
- For licensed clinicians and clinical researchers. Interpret results with history, investigations and local protocols; not a diagnosis or prescription, and not a substitute for multidisciplinary decision-making or local guidelines.
- Does Retinopathy of Prematurity (ROP) Screening Indication upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is Retinopathy of Prematurity (ROP) Screening Indication calculated in practice? Can you show a worked example?
- Inputs: Gestational age at birth 30 wk, Birth weight 1500 g, Birth weight ≥ 2000 g but critically ill (prolonged oxygen / mechanical ventilation / CPAP) No → Result: ROP screening Screening needed（Determination: Meets screening indication (GA < 32 wk; birth weight < 2000 g), First-exam timing: Start at 4–6 weeks postnatal OR 32 weeks corrected GA (whichever is later), Staging reference: Stage 1 demarcation line / stage 2 ridge / stage 3 extraretinal neovascular proliferation on the ridge / stage 4 tractional retinal detachment (4A no macular detachment · 4B macular detachment) / stage 5 total detachment; also aggressive posterior AP-ROP. Pre-threshold disease around 36 weeks corrected GA, threshold disease around 37 weeks）