Table 1.

Characteristics of normal subjects and patients with meibomian gland dysfunction (MGD)

	N	Men/women	Mean age (years)	Number of eyelids in each meiboscore
				1	2	3	4
Healthy volunteers	88	46/42	32.0±8.1 (range 20–45)	80	89	0	0
MGD patients	36	26/10	50.2±14.7 (range 31–83)	0	16	13	20