 There have been successful human clinical trials with using SCLs infused with epidermal growth factor (EGF) that showed increased rate of healing of the epithelial cell layer of the cornea.Glaucoma is the leading cause of blindness in the world and is a progressive and irreversible disease of the eye.A poly(lactic-co-glycolic acid)-based contact lens was shown to release latanoprost at a sustained release rate of up to a month in animal models by Ciolino et al.