THE SECRETION-DIFFUSION THEORY OF INTRA-OCULAR FLUID DYNAMICS*

to snow-blindness is really caused, certainly in part, by desiccation and perhaps also freezing of the corneal epithelium, and 'not by excessive ultra-violet' light'reflections. (5) The condition could be prevented by the wearing of gogIgh4§. (6) The name desiccation keratitis is suggested for the condition. I would like to express my gratitude to Brigadier C. W. Graham and Br.igadier G. I. Scott and to Dr. Rowland Wilson, of the Giza Memorial Hospital, Cairo, for their great help and advice in the preparation of this paper, and to Colonel J. Morrison, O.B.E., M.C., for permission ''to publish it.