This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Diseases of orbit, Lids and lacrimal apparatus, Subject name: Ophthalmology
Fusion of palpebral and bulbar conjunctiva is- 
Select and explain. 
A. Symblepharon, B. Trichiasis, C. Ectropion, D. Tylosis
A: Symblepharon
Answer: A: Symblepharon 
Explanation: *Adhesion of the lids to eyeball is called symblepharon. It occurs due to fusion of palpebral conjunctiva (covering inner surface of lid) to bulbar conjunctiva (covering outer surface of eyeball).