Embryogenesis of a congenital nasolacrimal duct (NLD) cyst is attributed to the failure of the Hasner membrane of the NLD system to cannulate. Prenatal diagnosis of congenital NLD cysts supports the argument for a developmental error, with a postnatal prevalence of 6%. The role of a genetic basis for this malformation has never been ascribed. We present a set of monozygotic twins with bilateral...

Congenital Nasolacrimal Duct Obstruction (CNLDO) is one of the commonest causes of Childhood epiphora. This study was carried outat Sagarmatha Chaudhary Eye Hospital (SCEH), Lahan to determine the success rate of probing and syringing in children below 18 months of age with CNLDO. A hospital based prospective interventional study of 106 children with age 4 to 18 months (Mean 7.67, SD 4.37) who ...

Dacryocystitis is inflammation of the lacrimal sac. Chronic dacryocystitis due to obstruction of nasolacrimal duct affects all ages and had been described by Galen as early as the second century BC.! It is most frequently seen in infants and in middle aged females. In the congenital type it is due to non-canalisation of the nasolacrimal duct and 50% undergo resolution by 6 months of age? Dacryo...