Combined low level light therapy and intense pulsed light therapy for the treatment of meibomian gland dysfunction

Figures & data

Figure 1 The MGD subjective grading scale.

Notes: Grade 0 is normal meibum easily expressed. Grade 1 is meibum easily expressed, but with with a more turbid oil. Grade 2 includes the presence of more turbid oil and a more viscous appearance. Grade 3 is the expression of “ropy” meibum. Grade 4 is no expression from the glands despite multiple attempts.

Abbreviation: MGD, meibomian gland disease.

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.

Figure 2 The distribution of ocular surface disease index scores before and after treatment.

Figure 3 The distribution of tear breakup time before and after treatment.