Effect of DRT on contraction kinetics of conjunctival defect. It is experimentally convenient to study contraction of the fornix a tissue attached to the conjunctiva ungrafted Ec 万 15 grafted with scaffold DRT 15 Days Hsu et al 2000Effect of DRT on contraction kinetics of conjunctival defect. It is experimentally convenient to study contraction of the fornix, a tissue attached to the conjunctiva. ungrafted grafted with scaffold DRT 30 % Fornix Shortening 15 0 0 15 30 Days Hsu et al., 2000