I sometime see patients with eyelids tattooing for cosmetics, and found MGD in some of patients. They showed severe plugging of meibomian gland, and complained uncomfortable.

Korean doctors recently published paper about relationship between eyelid tattooing and  MGD.

https://www.ncbi.nlm.nih.gov/pubmed/25933400

Meibography found dropout of Meibomian gland.