Diurnal variation in the dimensions of the anterior chamber
R. Mapstone and C. V. Clark
Anterior chamber depth and volume were measured photogrammetrically on a
diurnal basis in 38 eyes from 21 normal subjects. Significant diurnal
variation in anterior chamber dimensions was demonstrated. Anterior chamber
depth and volume measurements were significantly lower in the evening than
in the morning, with particular emphasis on the periphery of the anterior
chamber. Axial depth decreased by 2.1%; peripheral depth, by 21.1%; and
anterior chamber volume, by 5.7%.
