Complications of Chronic Dacryocystitis  Chronic dacryocystitis with acute exacerbation Acute dacryocystitis  Mucocoele of the lacrimal sac  Encysted mucocele of the lacrimal sac Acute cellulitis Pre-septal cellulitis Orbital cellulitis Periostitis  Lacrimal abcess  Fistula  Cavernous sinus thrombosis Optic neuritis