Aetiology of angle-closure glaucoma.

improve the procedure, and it may be that we shall also have to change some of our concepts.But the chief purpose of this paper will be fulfilled even if the hypothesis and the calculations which I have presented are erroneous, for my principal aim is to show that an efficient prevention of glaucomatous field damage is only possible by a quantitative determination of visual field sensitivity against intraocular pressure. SummaryThe central problem of simple glaucoma is to establish the connection between intraocular pressure and visual function decay in every individual case as early as possible.Such a connection can only be a quantitative one, either by attaining statistically "normal" values achieved in certain test experiments or by evolving formulae which allow us to determine "critical limiting pressure values" for every case from a short examination. COMMENTARY THE APPEARANCE OF THE DISC IN EARLY OPEN-ANGLE GLAUCOMAThe harder one tries to distinguish the glaucomatous disc from the normal disc, the less one seems able to distinguish between the different types.However, one principle that Dr. Anderson and Dr. Kirsch of Miami have found very useful is that in the glaucomatous cup there is a tendency for cupping to extend towards the upper and lower portions of the disc.It does not matter whether it is a very small cup but it does seem to be the vertical orientation that is associated with glaucoma.On the other hand, a perfectly round cup with a perfectly even rim can be considered normal, even if large. Aetiology of angle-closure glaucoma