The reference ranges of ophthalmic artery Doppler indices for singleton pregnancy at 20–24 weeks in Taiwan

Our study has established the reference values for OAD indices in singleton pregnancies at 20-24 weeks. OAD is promising in obstetrics, accessible, and easy to learn. It is crucial to raise awareness among clinicians and provide validation in the local settings. We want to translate the findings from the literature into our local settings and shift the focus from other biomarkers. Based on our results, it is important to apply local reference values to ensure the best quality of care. Our study provides a foundation for further validation and application for obstetrics screening in Taiwan.