[Clinical and morphological characteristics of the scleral drainage area in normotensive glaucoma]

The ocular drainage system in normal intraocular-pressure glaucoma was studied by fluorescence lymphoangioscopy of the anterior ocular segment on 24 eyes and by histomorphological analysis of the drainage zone on 12 eyes. The study revealed the increased volumetric lymph flow in the drainage zone, which suggests the higher tissue drainage that correlates with intraocular pressure and agrees with the histomorphological findings. Patients with normotensive glaucoma were found to have ischemic and destructive changes in the drainage zone and vascular system of the anterior ocular segment. The histomorphological and lymphoangioscopic findings suggest the destruction of the drainage system, the retention of intraocular fluid, and the possible periodic unrecorded ophthalmic tone increase in normotensive glaucoma.