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Surgery involves gland replacement, not excision, by anchoring the membrane to the orbital rim or using a pocket technique. [3] In severely infected cases, preoperative antibiotics may be necessary by means of antibiotic eye ointment. [3] Removal of the gland was once an acceptable treatment, and made the eye appear completely normal. [5]
The nictitating membrane of a masked lapwing as it closes over the left eye, originating from the medial canthus. The nictitating membrane (from Latin nictare, to blink) is a transparent or translucent third eyelid present in some animals that can be drawn across the eye from the medial canthus to protect and moisten it while maintaining vision.
The membrane works to protect and moisten the eyelid while maintaining visibility. It also contributes to the aqueous portion of the tear film and possibly immunoglobulins. [ 14 ] Humans and some primates have a much smaller nictitating membrane; this may be because they do not capture prey or root vegetation with their teeth, so that there is ...
It colonizes the trachea and bronchi. The main host is the red fox, but dogs, tanuki, wolves, and coyotes are also infested. [33] C. vulpis has been detected in about 1% of domestic dogs in Germany, [3] and in dogs with pulmonary symptoms in 2.4 to 6% of animals. [33] In Canada, an infection rate of 3.2% has been determined. [9]
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Thelazia is a genus of nematode worms which parasitize the eyes and associated tissues of various bird and mammal hosts, including humans. [2] [3] They are often called "eyeworms", and infestation with Thelazia species is referred to as "thelaziasis" (occasionally spelled "thelaziosis").
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Thelaziasis is the term for infestation with parasitic nematodes of the genus Thelazia.The adults of all Thelazia species discovered so far inhabit the eyes and associated tissues (such as eyelids, tear ducts, etc.) of various mammal and bird hosts, including humans. [2]