Ocular Hypertension Treatment Study (OHTS)

Inclusion Criteria

• •Qualifying IOP in at least one eye of each participant must be more than or equal 24 mmHg but less than or equal to 32 mm HG calculated from two separate consecutive determination taken at least 2 hours, but not greater than 12 weeks apart.
• •Normal and reliable 30-2 Humphrey Visual Fields in both eyes.
• •Normal Optic disc in both eyes on clinical examinations and stereoscopic photographs as determined by the Optic Disc Reading Center.