Wiktionary
                    polymegethism
                    
                        
                
                                                                    n. An abnormally large variation in size of the corneal endothelial cells.
Wikipedia
                    Polymegethism
                    
                        
                
                                                                    A greater than normal variation in size of the corneal endothelial cells.
Causes include contact lens wear, ocular surgery, trauma and damage.
Category:Human eye anatomy