<prompt> In pterygium, which layer of cornea is involved most oftenEpitheliumEndotheliumBowmans layerDescemets membrane  <response>: Answer- C. Bowmans layerPterygium is a growth from conjunctiva, In cornea, it involves Bowmans layer.Corneal involvement in pterygia includes infiltration of Bowmans layer, a strong layer of collagen directly beneath the corneal epithelium. Disruption of Bowmans layer leads to scarring.Pterygium is a degenerative and hyperplastic condition of conjunctiva. 