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Lacrimal system and dry eyes
Published in Mostafa Khalil, Omar Kouli, The Duke Elder Exam of Ophthalmology, 2019
Omar Kouli, Mostafa Khalil, Stewart Gillan
These glands are histologically similar to the lacrimal gland. They sustain the basal secretory level of the aqueous layer of the tear film. Krause glands: Situated adjacent to the conjunctival fornix. They are more numerous in the upper eyelid.Wolfring glands: Situated in the upper border of the tarsal plate. Although fewer in number, they are larger than Krause glands.
Dacryops – A review
Published in Orbit, 2020
Sombat Tanaboonyawat, Oluwatobi O. Idowu, Thomas S. Copperman, M. Reza Vagefi, Robert C. Kersten
The accessory lacrimal glands of Krause and Wolfring rarely give rise to dacryops. Wolfring glands are present along proximal tarsal border in the upper and, to a lesser extent, lower eyelids. Krause glands are located within the conjunctiva of both upper and lower fornices. The histopathologic appearance of the ductal cyst arising from both Wolfring and Krause glands is identical. They are differentiated by location, with Krause glands located within the fornices, while Wolfring glands are found adherent or adjacent to the proximal tarsal border of the upper and lower eyelids.11,12
Krause’s accessory lacrimal gland dacryops - case report and literature review
Published in Orbit, 2020
Hamad M. Alsulaiman, Dalal R. Fatani, Osama Al Sheikh, Sahar Elkhamary, Azza Maktabi, Hind M. Alkatan, Silvana Artioli Schellini
The histopathologic appearance of the ductal cyst arising from both Wolfring and Krause glands is identical. The main histopathologic criteria for the diagnosis of dacryops of the accessory LG consist of the presence of a non-keratinizing epithelial cyst of varying size composed of a double layer of non-ciliated columnar or cuboidal cells with occasional goblet cells. Other features include apical apocrine luminal changes, foci of lymphoid tissue in the subepithelial connective tissue and outer layer of myoepithelial cells in the wall.10,16,20,23