[New technologies for glaucoma diagnosis require evaluation of their clinical application]

Optical coherence tomography (OCT), Heidelberg Retinal Tomography (HRT-II) and GDx have been used widely in glaucoma diagnosis for many years, but it is still uncertain in their practical value and clinical significance. Therefore, it requires an evaluation for the usefulness of each instrument in the diagnosis of glaucoma. The evaluation must be correct, standardized and strict in methodology, with emphasis on the early diagnosis and the concrete analysis of each parameter given by the different imaging instruments. Only if clinical application of these devices is combined with the practical evaluation, can these techniques make real progression and solve the clinical problems in the early diagnosis of primary open angle glaucoma.