Conjunctival intraepithelial neoplasia (CIN) are considered to be the third
most common ocular tumour and the most common tumour of the ocular surface
. Due to their malignant potential, they must be carefully differentially a
nd promptly treated. A recurrence rate of approximately 30% leads to the ne
ed for monitoring of patients even after successful treatment. This article
presents several cases of CIN and reviews their histopathology, aetiology,
appearance, differential diagnosis and management. Typical patient present
ations and prognoses are also discussed. (C) 2000 The College of Optometris
ts. Published by Elsevier Science Ltd. All rights reserved.