Periods of development of the normal human chamber angle.

Stages of fetal and postnatal development of the normal human chamber angle are reevaluated. Major growth phases can be detected: trabecular anlage formation (around the 15th week), differentiation into definitive structures (around the 24th week), specialisation of the definitive structures (around the 28th week), achievement of final components (birth) and final moulding of the chamber angle and the maturation of its cellular and extracellular constituents (1-8 years). A cleavage or gradual atrophy of chamber angle tissues could not be detected during any of the above phases, nor was a membrane found, which covered the chamber angle recess at any stage of development.

[Iridectomy].

The importance of v. Graefe's iridectomy is considered in the light of medical history. Modern indications for iridectomy, including possible variations (sector iridectomy, peripheral, basal iridectomy) are discussed.

[Histopathological aspects of the surgical treatment of congenital glaucoma].

Two tissue specimens obtained by trabeculectomy from infant eyes with different reactive changes in their chamber angles due to previous trabeculotomies are described and discussed. Both eyes had been operated on glaucoma for several times. In the first case, the trabeculotomy had resulted in the formation of laminar scar tissue with hyalinized and atrophic trabecular sheets.