Image depict a widely opened distal end of right nasolacrimal duct. The Hassner's valve is not seen here. (MM- inferior meatus, IT -inferior turbinate, arrow - nasolacrimal duct opening in middle meatus).
Image depict a widely opened distal end of right nasolacrimal duct. The Hassner's valve is not seen here. (MM- inferior meatus, IT -inferior turbinate, arrow - nasolacrimal duct opening in inferior meatus).
The lacrimal sac empties into the nasal cavity underneath the anterior end of the inferior turbinates. The opening of the nasolacrimal duct and Hasner's Valve can be clearly seen beneath the anterior...
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