Aim: The purpose of this study is to compare the fibrin glue prepared from Umbilical Cord Blood (UCB) Royan Institute, Tehran, Iran with a standard glue in pterygium excision surgery.
Design: Randomized Clinical Trial
Setting: Baqiyatallah Hospital, Ophthalmology Department, Tehran, Iran
Major inclusion criteria: Patients who are suffering from pterygium associated with reduced visual acuity due to the proximity of pterygium to the visual axis; irregular astigmatism; and considerable ocular discomforts which are not responsive to the standard cares. Exclusion criteria: those who are suspected to ocular surface malignancies and/or keratoconjunctivitis; recurrent pterygium; systemic diseases (eg. diabetes, hypertension).
Intervention: in the case group following pterygium excision surgery, conjunctival graft will be attached by umbilical cord blood fibrin glue, while in the control group, attachment will be accomplished by standard fibrin glue.
Outcome measures: Complete loss of graft, partial graft dehiscence, graft hyperemia, subconjunctival hemorrhage, recurrence rate, post-operative pain and other ocular surface side effects.