Application of tear meniscus measurement by anterior segment optical coherence tomography in the diagnosis of dry eye.

Dry eye, one of the most frequent ocular surface diseases, is caused by complex ocular function and mechanism disorders. Currently, no uniform standard diagnosis of dry eye has been established. Traditional clinical examinations provide inaccurate measurement and poor reproducibility due to various factors. Anterior segment optical coherence tomography (OCT) is applicable in the diagnosis of dry eye due to its high resolution, non-invasiveness, good accuracy, and repeatability.