At six week , intention-to-treat and per-protocol analyses of the left-eye Schirmer I test results showed an improved difference of @ mm/@ min ( @ % CI : @ to @ mm/@ min ) and @ mm/@ min ( @ % CI : @ to @ mm/@ min ) , respectively , and those of the right-eye Schirmer I test results showed an improved difference of @ mm/@ min ( @ % CI : @ to @ mm/@ min ) and @ mm/@ min ( @ % CI : -@ to @ mm/@ min ) , respectively .