This essay discusses briefly the most important recent diagnostic modalities in glaucoma.We discussed Optical Coherence Tomography, the Scanning Laser Ophthalmoscopy, the Scanning Laser Polarimetry.The ocular blood flow is discussed using the Doppler and Heidelberg Retinal Flowmetry. In addition to the Heidelberg Retinal Angiography.Concerning the visual field testing, we discussed the SWAP, the SITA standard and SITA fast perimetry, MAP and TOP perimetries.The electrophysiological tests as Bjerrum Pattern ERG, and Multifocal ERG are discussed. Then we discussed the ultrasound biomisroscopy.