Punctal agenesis: Embryology, presentation, management modalities and outcomes.
Dohlman JC, Habib LA, Freitag SK.
Ann Anat. 2019 Jul;224:113-116. doi: 10.1016/j.aanat.2019.04.004. Epub 2019 May 16.
PMID:31102704
Blind canalicular marsupialization in complete punctal absence as part of a systematic approach for classification and treatment of lacrimal system obstructions.