Comparative Evaluation of Corneal Staining With Balafilcon A Lenses and Two Multi-Purpose Solutions

Inclusion Criteria: * were at least 18 years old; * were experienced contact lens wearers; * were correctable to at least 20/40 or better in both eyes with contact lenses; * were in good general health, with healthy eyes (other than requiring vision correction); * had not worn lenses for at least 12 hours before each baseline visit; * had a corneal staining score no greater than Grade 1 in either eye at time of enrollment; * had previously used an MPS or hydrogen peroxide solution successfully. Exclusion Criteria: * had a confirmed diagnosis of Sjögren's syndrome or other condition that results in a chronic and/or pathologic dry eye condition; * required concurrent ocular medication or have used ocular medication within 24 hours of entering the study; * had a known sensitivity or intolerance to any MPS, study products or ingredient(s); * were currently participating in any other clinical study; * had a condition or are in a situation that, in the investigator's opinion, may put them at significant risk, confound the study results, or interfere significantly with their participation in the study.