[Skip to Content]
[Skip to Content Landing]
July 1962


Author Affiliations

Uppsala Universitet Fysiologiska Institutionen Uppsala, Sweden

Arch Ophthalmol. 1962;68(1):151-152. doi:10.1001/archopht.1962.00960030154032

Dr. Macri''s letter was referred to Dr. Bill, who offers the following reply:

To the Editor:  —In his discussion of my criticism Macri points out that the reason for the discrepancy between his and my results might be that in my experiments the intraocular pressure (IOP) was stabilized with a leveling manometer. To demonstrate that this is not the case, I would like to present, in brief, the results of some experiments (see the Table) which are to be presented in detail later, experiments in which the IOP was not stabilized. The intrascleral venous pressure (ISVP) was measured with the technique used previously which does not cause any occlusion that may raise the pressure measured.1 The values for intrascleral venous pressure expected if Macri's equation (IOP=0.82·ISVP +6.51) was correct are given in parentheses.It can be seen even without statistical analysis that my figures for ISVP completely disagree with