Dop lacrimal, aplicat pentru cei care au probleme numite "ochi uscat", de exemplu.
“A punctal plug (or punctual 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.”
http://en.wikipedia.org/wiki/Punctal_plug

“Un dop temporar sau permanent aplicat în canalele lacrimale rezolva foarte bine problema, totusi în anumite cazuri e necesara blocarea chirurgicala a canalelor.”
http://www.oftalmologia.ro/pac_uscat.php
http://www.google.com/search?hl=en&rlz=1T4ADSA_enUS344US348&...