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For a number of years clinical investigators in the field of glaucoma have been largely divided into two opposing camps, one group supporting the neurovascular hypothesis and the other group favoring the so-called mechanical hypothesis. The neurovascular theory has held a dominant position in Great Britain. However, in a discussion of this theory Redmond J. H. Smith of Moorfields Eye Hospital comments:
"It is not possible to refute such a widely based theory since the statement embodies little more than an admission that we do not know the cause of glaucoma."
He clearly prefers a more "mechanical" approach, namely a primary concern with obstructive processes in the chamber angle.
Here is an up-to-date, concise book on glaucoma written for the practicing clinician. The presentation is clear, systematic, and based on the author's personal experience with modern techniques. The viewpoints on pathogenesis, diagnostic techniques and management are generally in accord with
Forbes M. Clinical Glaucoma.. Arch Ophthalmol. 1965;74(5):700. doi:10.1001/archopht.1965.00970040702024