Table 1.

Summary statistics

Measure	n	Pre treatment	Post treatment
OSDI Score	230	42.2±18.8 (6 to 93)	24.2±15.9 (0 to 75)
MGD Grade*	460
0			6
1			34
2		9	181
3		175	179
4		276	60
TBUT (seconds)	460	4.4±2.1 (0 to 14)	8.0±3.0 (1 to 17)

Notes: *Intermediate scores were rounded up to the nearest full grade.

Abbreviations: OSDI, Ocular Surface Disease Index; TBUT, tear breakup time; MGD, Meibomian Gland Dysfunction.