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Meibomian gland dysfunction is more often seen in women and is regarded as the main cause of dry eye disease. [ 14 ] [ 15 ] Factors that contribute to meibomian gland dysfunction can include things such as a person's age and/or hormones, [ 16 ] or severe infestation of Demodex brevis mite.
Along the inner margin of the tarsus are modified sebaceous glands known as tarsal glands (or meibomian glands), aligned vertically within the tarsi: 30 to 40 glands in the upper lid, and 20 to 30 in the lower lid, which secrete a lipid-rich product which helps keep the lacrimal secretions or tears from evaporating too quickly, thus keeping the ...
In diseased persons, these may wander and cause a discoloration of the lids. It contains sweat glands and hairs, the latter becoming eyelashes as the border of the eyelid is met. [2] The skin of the eyelid contains the greatest concentration of sebaceous glands found anywhere in the body. [1]
The periocular region, which includes the meibomian, Zeis, and sebaceous glands of the caruncle and eyelid, is the most common site accounting for up to 75% of SGc. [6] Meibomian glands are a type of sebaceous gland that lines the upper and lower eyelids and do not contain a follicle. The glands of Zeis contain the individual eyelash.
Lentigo in cats is a common dermatological condition characterized by the presence of small, flat, brownish spots on the skin — particularly around the lips, nose, and eyelid margins. Unlike in ...
Meibomian glands in the lower eyelid imaged under amber light to show vasculature support and the gland structure. Meibomian gland dysfunction (MGD, also meibomitis or meibomianitis) is a chronic disease of the meibomian glands, which is commonly characterized by obstruction of the end of the duct that delivers the secretion produced by the glands (called meibum) to the eye surface, which ...
Image credits: sillyanimalspost The endless debate of cats versus dogs also extends to memes. It might seem like the internet loves crazy cats and funny dogs equally, but there actually is a clear ...
Image credits: meow.citos A significant portion of the photographs presented in our selection are the so-called Flehmen response, a characteristic movement of the lips in many mammals associated ...