Page 122 - NAME OF CONDITION: REFRACTIVE ERRORS
P. 122

NAME OF CONDITION: CHRONIC DACRYOCYSTITIS


                        I.  WHEN TO SUSPECT/ RECOGNIZE?


                    a) Introduction:

                       Chronic  dacryocystitis  is  an  inflammatory  condition  of  the  lacrimal  sac  most
                       commonly associated with partial or complete obstruction of the nasolacrimal duct .
                       Most  chronic  dacryocystitis  present  with  watering  and  discharge,  but  some  may

                       progress  and  cause  severe  ocular  and  extra  ocular  complication.  Even  in  mild
                       conditions,  it  may  cause  a  significant  ocular  morbidity  and  loss  of  work  place
                       efficiency because watering can blur the vision momentarily, prevent a person from
                       concentrating on some work and can be socially embarrassing. It affects all ages and
                       all social strata but women are more likely to develop dacryocystitis because of their
                       nasolacrimal ducts are anatomically narrower as compared to males. Approximately
                       3%  of  all  the  ophthalmic  clinical  visits  and  1%  of  all  emergency  room  visits  are
                       related to dacryocystitis.  The underlying etiology, typical infectious organisms and
                       preferred treatments are important issues to understand in the management of this
                       common disorder.

                    b) Case definition:

                       Dacryocystitis is defined as inflammation of the lacrimal sac.  The sac is a part of the
                       lacrimal excretory system whose function is to transport the tears from the eyes to
                       the nose.

                       II.  INCIDENCE OF THE CONDITION IN OUR COUNTRY

                       Chronic  dacryocystitis  is  a  common  ophthalmic  problem.  Although  there  are  no

                       reliable figures that document the incidence or prevalence of chronic dacryocystitis,
                       large studies from the west have documented it to be around 3% of all the clinical
                       ophthalmic visits. Since the lacrimal system is prone to infections as it is contiguous
                       with  both  conjunctiva  and  nasal  mucosa,  dacryocystitis  is  considered  much  more
                       common  in  developing  countries  like  India.  The  morbidity  is  much  more  than
                       expected because of its chronic nature, social factors as discussed already, tendency
                       for acute painful exacerbations and its complications.



                      III.  DIFFERENTIAL DIAGNOSIS

                       Although chronic dacryocystitis is not very difficult to diagnose, there could still be
                       certain atypical cases which may masquerade in a similar fashion and needs to be
                       kept in mind. They include bacterial conjunctivitis, pre-septal cellulitis,

                                                           122
   117   118   119   120   121   122   123   124   125   126   127