Meibomian gland Meibomian gland The Meibomian glands (often written with a small "m" and also called tarsal glands) are a holocrine type of exocrine glands, at the rim of the eyelids inside the tarsal plate, responsible for the supply of meibum, an oily substance that prevents evaporation of the eye's tear film. Meibum prevents tear spillage onto the cheek, trapping tears between the oiled edge and the eyeball, and makes the closed lids airtight. There are approximately 50 glands on the upper eyelids and 25 glands on the lower eyelids. Dysfunctional meibomian glands often cause dry eyes, one of the more common
Surgical sealant film a form of secondary wound closure. The film can be used for sealing the dura mater, preventing blood loss in general surgery and eliminating air leaks following lung resection. Surgical sealant film A surgical sealant film is an implantable medical device used during surgery. It is a preformed flexible patch that is applied to supplement sutures and surgical staples to seal tissues and prevent leaks of fluid (including blood and cerebrospinal fluid) and air. The sealant film is synthetic and incorporates absorbable polymers, including poly(lactide-co-glycolide). The polymeric components impart structural and adhesive properties with the sealing effect achieved by incorporation