Examination of Ocular Surface Effects With Administration of Travatan Z and XALATAN

Exclusion Criteria

• •Treatment with BAK preserved artificial tears within 30 days of Visit 1.
• •Known or suspected Sjogren's disease.
• •Uncontrolled IOP.
• •History or evidence of infectious or inflammatory ocular conditions.
• •Progressive retinal or optic nerve disease.
• •Ocular laser surgery within 3 months of Visit 1.
• •Keratorefractive ocular laser procedures, corneal surgery or surgery to the corneal surface within 1 year of Visit 1.
• •Current use of punctal plugs or punctal cautery.
• •Use of systemic medications that has not been stable for 30 days prior to Visit 1.
• •Use of contact lens within 30 days of Visit 1.