<prompt> Not true regarding corneal stromaMeasures 500 umType 1 collagen is most abundant, type 4 6 also foundTransmits 90 of incoming lightDerives its oxygen from aqueous humor  <response>: Corneal Stroma Thickest layer of the cornea Measures 500 um Type 1 collagen is most abundant, type 4 6 also found.Type 2 collagen is not found Transmits 90 of incoming light Derives its oxygen from precorneal tear film and not aqueous humor MMP 2 is found in human stroma Acellular lamellar orientation of collagen fibres accounts for its transparency 