There were statistically significant improvements in the OSDI score ( -@ @ , -@ @ ; P = @ ) , fluorescein ( -@ @ , -@ @ ; P = @ ) , and Rose Bengal staining ( -@ @ , -@ @ ; P = @ ) , goblet cell density ( @ @ , @ @ ; P = @ ) , and impression cytological findings ( -@ @ , -@ @ ; P = @ ) in group @ compared with those in group @ at @ months .