Study of Travatan and Cosopt in Primary Open-Angle Glaucoma or Ocular Hypertension

Travatan: 6 weeks treatment with Travatan (travoprost 40 mg/ml eye drops, solution) once daily at 08:00 and placebo (timolol vehicle) once daily at 20:00 in the affected eye(s)

treatment period of 6 weeks with Cosopt (dorzolamide 20 mg/ml and timolol maleate 5 mg/ml eye drops, solution) twice daily at 08:00 and 20:00 in the affected eye(s)

Travatan group: 6 weeks treatment with Travatan (travoprost 40 mg/ml eye drops, solution) once daily at 08:00 and placebo (timolol vehicle) once daily at 20:00 in the affected eye(s)