GFAP and ocular hypertension: While the saline-injected eyes had a steady level of intraocular pressure that was maintained at average values below 12 mmHg through the experimental period of 12 weeks, microbead-injected eyes of GFAP-IκKβ mice or controls similarly exhibited a course of ocular hypertension (mean ± SD, 28.09 ± 3.98, and 27.86 ± 4.25 mmHg, respectively).