Determination of volume of the posterior chamber of the rabbit's eye.

A COMPREHENSIVE understanding of aqueous humor dynamics requires knowledge of the rates of transfer of substances of the blood to the posterior chamber, since many constituents of the blood enter this chamber by way of the ciliary body. Studies of this kind are limited not only by the small quantity of fluid available for analysis, but by lack of knowledge of the volume of the fluid in this chamber, since calculation of these rates depends on a knowledge of the volume. In the present study the volume of the posterior chamber of an eye from a freshly killed rabbit was determined. For this purpose the posterior chamber was arbitrarily defined as that region bounded anteriorly and laterally by the posterior surfaces of the ciliary body and posteriorly by the most anterior extension of the vitreous humor and lens. METHOD AND RESULTS The eye of an adult rabbit was enucleated, fixed