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Mean Standard Patient Evaluation of Eye Dryness (SPEED) score (out of 28) and mean Ocular Surface Disease Index (OSDI) total score (out of 100) at baseline, posttreatment 1 week, and posttreatment 1 month. Error bars represent the SDs. P values for change in SPEED score and OSDI score from baseline to 1 week and baseline to 1 month are presented.
