Answer by  
                                                                                          luvlexis83 (798)
                                                            
                          
                          
                                                          It can be caused by staying awake for long periods of time, naturally from aging, and from them swelling up and going back down (usually from allergies). Basically your skin has lost its elasticity. Fix it temporarily with anything cold or hemorrhoid cream, or you can get a surgical eye lift.