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Punctum, plural puncta, adjective punctate, is an anatomical term for a sharp point or tip. It may also refer to: Medical.
The lacrimal punctum (pl.: puncta) or lacrimal point is a minute opening on the summits of the lacrimal papillae, seen on the margins of the eyelids at the lateral extremity of the lacrimal lake. There are two lacrimal puncta in the medial (inside) portion of each eyelid.
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In 1988 M. Eric Anderson confirmed that Maynea was a monospecific genus and that Cunningham's M. patagonica was a junior synonym of Conger puncta which had been described in 1842 by Leonard Jenyns from type specimens collected on the second voyage of HMS Beagle in the Beagle Channel in Tierra del Fuego. [3]
Punctoplasty is a surgical procedure to restore proper drainage of tears [1] when the lacrimal punctum (puncta lacrimalia) becomes blocked in one or both eyes.. If a blockage is present in the puncta, doctors may suggest a procedure called punctoplasty, performed to widen the drain opening.
A punctal plug, also known as tear duct plug or lacrimal plug, is a small medical device that is inserted into the tear duct (puncta) of an eye to block the duct. This prevents the drainage of liquid from the eye. They are used to treat dry eye. Artificial tears are usually still required after punctal plug insertion. [1]
Due to the different underlying causes, proper diagnosis, treatment, and prognosis can only be determined by an eye care professional. Punctate epithelial erosions may be treated with artificial tears.
Avitta puncta Wileman, 1911; Avitta quadrilinea Walker, [1863] Avitta rufifrons Moore, [1887] Avitta simplicior Gaede 1940; Avitta subsignans Walker, 1858; Avitta surrigens (Walker 1863) Avitta taiwana Wileman, 1915; Avitta zopheropa Turner, 1909