Outflow facility in acute experimental ciliochoroidal detachment.

Total outflow facility was measured by constant pressure perfusion in six cynomolgus monkey eyes with ciliochoroidal detachment and in fellow eyes following sham operation. Outflow facility in eyes with ciliochoroidal detachment was 0.22 +/- 0.04 microliter/min-1/mmHg-1 (P less than 0.05). Since the spontaneous intraocular pressure following acute ciliochoroidal detachment was lower than the normal episcleral venous pressure, it is concluded that the increase in outflow facility in eyes with ciliochoroidal detachment actually may be a measure of the rate of fluid flow across the sclera out of the suprachoroidal space.