Sulcus subtarsalis

Sulcus subtarsalis is a groove in the inner surface of eyelid near the eyelid margin and which is also parallel to it.[1] This separates marginal conjunctiva from tarsal conjunctiva. It provides space for lodging of foreign bodies. Arlt's line is a linear line present in the sulcus subtarsalis in Chlamydia trachomatis infection.[2]


  1. ^ "Conjunctiva". Online Resources of Ophthalmology. Retrieved 19 June 2013.
  2. ^ Khurana, A. K. (2008). Comprehensive Ophthalmology (4 ed.). Kent, UK: Anshan Publishers. p. 65. ISBN 978-1905740789.