[Attach importance to choroidal research with enhanced depth imaging spectral-domain optical coherence tomography].

With the enhanced depth imaging spectral-domain optical coherence tomography occurs, choroidal structures and thickness can be observed accurately. So far studies about this technology are focused on the changes of the choroidal thickness and its related factors. While as a non-invasive examination, this technique can also be used to observe structural features of choroidal lesions; measure the diameter of choroidal vessels; study the pathogenesis of disease; differentiate a variety of fundus disease; and follow-up medical or surgical treatment. So it has great scientific value and broad application prospects.