Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

[Dacryolithiasis: diagnosis using nasal endoscopy].

J-M Piaton1, P Keller, J-A Sahel

  • 1Service d'Ophtalmologie, CHNO des XV-XX, 75012 Paris. jmpiaton@aol.com

Journal Francais D'Ophtalmologie
|September 18, 2003
PubMed
Summary
This summary is machine-generated.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Combined Dermis Spacer Graft, Lateral Canthopexy and Subperiosteal Midface Lifting in the Management of Lower Eyelid Retraction Secondary to Chronic Facial Nerve Palsy.

Journal of maxillofacial and oral surgery·2026
Same author

[Pharmacotherapy of benign prostatic syndrome : Medications, innovations and future prospects].

Urologie (Heidelberg, Germany)·2026
Same author

Urinary diversion and quality of life: A six-year follow-up study of bladder cancer surgery.

Actas urologicas espanolas·2025
Same author

[Influence of screen brightness on reading in dry eye patients].

Journal francais d'ophtalmologie·2024
Same author

PhotoSENSIL-18 assay development: Enhancing the safety testing of cosmetic raw materials and finished products to support the in vitro photosensitization assessment?

Toxicology·2023
Same author

[CRISPR/Cas9: From research to therapeutic application].

Journal francais d'ophtalmologie·2023
Same journal

Silent threat to sight after bariatric surgery: Vision loss from vitamin A deficiency.

Journal francais d'ophtalmologie·2026
Same journal

Persistent subretinal fluid and subretinal precipitates following pneumatic retinopexy.

Journal francais d'ophtalmologie·2026
Same journal

Real-time documentation of acute pre-retinal hemorrhage in central retinal vein occlusion.

Journal francais d'ophtalmologie·2026
Same journal

Incidental detection of benign lobular inner nuclear layer proliferations (BLIPs) in a young adult.

Journal francais d'ophtalmologie·2026
Same journal

Combined autonomic and cranial neuropathy following radiofrequency ablation for trigeminal neuralgia.

Journal francais d'ophtalmologie·2026
Same journal

[Point-of-care biomarkers of ocular surface disease: Current approaches and future perspectives].

Journal francais d'ophtalmologie·2026
See all related articles

Dacryolithiasis is often missed, but nasal endoscopy can reveal Hasner valve (HV) abnormalities and mucopurulent discharge, aiding diagnosis. These findings suggest HV malformations may cause dacryolithiasis.

Area of Science:

  • Ophthalmology
  • Otorhinolaryngology
  • Medical Imaging

Background:

  • Dacryolithiasis, the formation of stones in the lacrimal sac, is frequently misdiagnosed.
  • The role of the Hasner valve (HV) in dacryolithiasis etiology is not fully understood.

Purpose of the Study:

  • To evaluate the diagnostic value of anatomical abnormalities and mucopurulent discharge at the Hasner valve (HV) for dacryolithiasis.
  • To compare these findings with other clinical and radiological signs of dacryolithiasis.
  • To investigate the potential causal link between HV abnormalities and dacryolithiasis formation.

Main Methods:

  • Prospective study of 797 epiphora surgeries, including endonasal dacryocystorhinostomies and HV meatotomies.
  • Systematic preoperative nasal videoendoscopy was performed on all patients.

Related Experiment Videos

  • Preoperative dacryocystography (DCG) and lacrimal computed tomography (LCT) were utilized.

    • Main Results:

    • Dacryoliths were identified in 6.9% of patients (55/797).
    • Mucopurulent discharge at the HV was significantly more common in patients with dacryolithiasis (45.8% vs. 5.8%, p<10(-6)).
    • Anatomical abnormalities of the HV were found in 83.3% of dacryolithiasis patients versus 11.4% in controls (p<10(-6)), including narrowing of the lacrimal pathway.

    Conclusions:

    • Nasal videoendoscopy is crucial for diagnosing suspected dacryolithiasis, identifying HV abnormalities and mucopurulent discharge.
    • The presence of mucopurulent discharge with a patent lacrimal system is highly specific for dacryolithiasis.
    • Congenital malformations of the HV are implicated as a potential cause for many dacryolithiasis cases.