Nasolacrimal canal is a bony canal accommodating nasolacrimal duct, this canal formed by indentations in the inferior nasal conchae, maxilla, and lacrimal bone. Nasolacrimal ducts drain the excess tears from the orbital cavity to the nasal cavity. Blockage of nasolacrimal duct leads to obstruction of draining of excess tears and cannot drain properly; this may lead to watery and irritated eyes. This condition can always happen. Treatment depends on the cause of blockage and age of the patients. Thirty five adult skulls were used in present study, both sides nasolacrimal ducts were studied, damaged skull any side excluded. These skulls were collected in routine dental and medical student’s osteology classes. The length of nasolacrimal duct and width of nasolacrimal groove at the entrance and base were measured with vernier clippers and recorded the same. All the results werenasolacrimal canal on the left side was 13.76±3.56mm and on the right it was 14.52±4.63mm. The width of the nasolacrimal groove at the entrance was 7.12±1.36mm on right and 6.96±2.06mm on left. The width of the groove at the base was 8.66±1.72mm on right and 8.12±1.26 mm on left. The knowledge about length of nasolacrimal canal and width groove at the base and entrance will be helpful to otolaryngologists. This knowledge is also helpful to emptying of blockage of nasolacrimal ducts in the canal surgically.
M. K. Deepa, Girish V. Patil, B. R. Harsha and Chaithra Girish. Study on Morphometric Features of Nasolacrimal Canal and Groove in Adult Skulls and its Clinical Importance in Otorhinolaryngology.
DOI: https://doi.org/10.36478/10.59218/makrjms.2024.5.199.202
URL: https://www.makhillpublications.co/view-article/1815-9346/10.59218/makrjms.2024.5.199.202