RT Book, Section A1 Lueder, Gregg T. SR Print(0) ID 56151224 T1 Chapter 27. Diseases of the Conjunctiva T2 Pediatric Practice: Ophthalmology YR 2011 FD 2011 PB The McGraw-Hill Companies PP New York, NY SN 9780071633802 LK accesspediatrics.mhmedical.com/content.aspx?aid=56151224 RD 2024/04/23 AB The conjunctiva is the clear layer of tissue that lines the inner eyelids (tarsal or palpebral conjunctiva) and the eyeball itself (bulbar conjunctiva). It extends from the eyelid margin to the edge of the cornea. Histologically, the conjunctiva is composed of an epithelial layer that contains goblet cells, a substantia propria layer that contains lymphatic vessels, and a lymphoid layer that is active in generating immune responses. The conjunctiva is normally clear, with a few visible blood vessels supplied by the anterior ciliary artery. The vessels become dilated when they are irritated (blood-shot eyes).