Outflow and ocular rigidity in human eyes: experimental research

The experiment with 34 human enucleated eyeballs investigated the effect of the rigidity of the eye on the outflow of anterior chamber with the decrease of intraocular pressure from 30 mm Hg up to 15 mm Hg. The average stiffness of the eyeballs was R = 0.026 ± 0.002 mm Hg / mm3. The time of decrease of the intraocular pressure ranged from 3.3 to 18.4 minutes, at an average of 9.0 ± 1.3 minutes. Coefficient of ease of the outflow in study group eyes averaged 0,090 ± 0,006 mm3 / mm Hg / min. In the group with the axis of the eyeballs less than 24.0 mm R = 0.03 ± 0,003 mm Hg/mm3, the outflow was C = 0.10 ± 0.08 mm3 / mm Hg / min. In the group with the axis more than 24.0 mm R = 0.019 ± 0.002 mm Hg / mm3, the outflow was C = 0.067 ± 0.07 mm3 / mm Hg /min. Influence of age-related changes on the rigidity of the outflow was not identified in this study. It has been shown that with the increase in the rigidity of the eye the speed of fluid ejection from the anterior chamber increases, and vice versa - with decreasing rigidity the outflow rate of moisture from the anterior chamber decreases.

ocular rigidity coefficient, outflow of intraocular fluid, intraocular pressure, anterior-posterior axis of eye ball