PGIMER November 2011 – MCQ 12
All are true except
A. Tear film has lipid, aqeous and mucin layer
B. Lipid layer is produced by meibomian glands
C. Aqueous is formed by filtration from blood capillaries
D. Tear film protects the cornea
E. ?
Please contribute to the discussion by posting the answer with references and pointing out the errors in the question.