A tubular duct that conveys TEARS from the LACRIMAL GLAND to the nose.
Interference with the secretion of tears by the lacrimal glands. Obstruction of the LACRIMAL SAC or NASOLACRIMAL DUCT causing acute or chronic inflammation of the lacrimal sac (DACRYOCYSTITIS). It is caused also in infants by failure of the nasolacrimal duct to open into the inferior meatus and occurs about the third week of life. In adults occlusion may occur spontaneously or after injury or nasal disease. (Newell, Ophthalmology: Principles and Concepts, 7th ed, p250)
Surgical fistulization of the LACRIMAL SAC for external drainage of an obstructed nasolacrimal duct.
Introduction of a tube into a hollow organ to restore or maintain patency if obstructed. It is differentiated from CATHETERIZATION in that the insertion of a catheter is usually performed for the introducing or withdrawing of fluids from the body.
Diseases of the lacrimal apparatus.
Inflammation of the lacrimal sac. (Dorland, 27th ed)
The tear-forming and tear-conducting system which includes the lacrimal glands, eyelid margins, conjunctival sac, and the tear drainage system.
The fluid secreted by the lacrimal glands. This fluid moistens the CONJUNCTIVA and CORNEA.
Surgery performed on the eye or any of its parts.
Procedures of applying ENDOSCOPES for disease diagnosis and treatment. Endoscopy involves passing an optical instrument through a small incision in the skin i.e., percutaneous; or through a natural orifice and along natural body pathways such as the digestive tract; and/or through an incision in the wall of a tubular structure or organ, i.e. transluminal, to examine or perform surgery on the interior parts of the body.
The proximal portion of the respiratory passages on either side of the NASAL SEPTUM. Nasal cavities, extending from the nares to the NASOPHARYNX, are lined with ciliated NASAL MUCOSA.
A phthalic indicator dye that appears yellow-green in normal tear film and bright green in a more alkaline medium such as the aqueous humor.
The air space located in the body of the MAXILLARY BONE near each cheek. Each maxillary sinus communicates with the middle passage (meatus) of the NASAL CAVITY on the same side.
Surgery performed on the ear and its parts, the nose and nasal cavity, or the throat, including surgery of the adenoids, tonsils, pharynx, and trachea.
Diseases affecting or involving the PARANASAL SINUSES and generally manifesting as inflammation, abscesses, cysts, or tumors.
A broad family of synthetic organosiloxane polymers containing a repeating silicon-oxygen backbone with organic side groups attached via carbon-silicon bonds. Depending on their structure, they are classified as liquids, gels, and elastomers. (From Merck Index, 12th ed)
The washing of a body cavity or surface by flowing water or solution for therapy or diagnosis.
Removal of an implanted therapeutic or prosthetic device.
Use or insertion of a tubular device into a duct, blood vessel, hollow organ, or body cavity for injecting or withdrawing fluids for diagnostic or therapeutic purposes. It differs from INTUBATION in that the tube here is used to restore or maintain patency in obstructions.
A group of thermoplastic or thermosetting polymers containing polyisocyanate. They are used as ELASTOMERS, as coatings, as fibers and as foams.
Each of the upper and lower folds of SKIN which cover the EYE when closed.
A surgical specialty concerned with the study and treatment of disorders of the ear, nose, and throat.
Lists of words, usually in alphabetical order, giving information about form, pronunciation, etymology, grammar, and meaning.
A bibliographic database that includes MEDLINE as its primary subset. It is produced by the National Center for Biotechnology Information (NCBI), part of the NATIONAL LIBRARY OF MEDICINE. PubMed, which is searchable through NLM's Web site, also includes access to additional citations to selected life sciences journals not in MEDLINE, and links to other resources such as the full-text of articles at participating publishers' Web sites, NCBI's molecular biology databases, and PubMed Central.
A surgical specialty concerned with the study, diagnosis, and treatment of diseases of the urinary tract in both sexes, and the genital tract in the male. Common urological problems include urinary obstruction, URINARY INCONTINENCE, infections, and UROGENITAL NEOPLASMS.
A subspecialty of internal medicine concerned with the anatomy, physiology, and pathology of the kidney.
Nasolacrimal duct apparent. Mouth narrow, superior, lower and upper-lips both visible. Tail long, tapering, with a whip-like ...
The Supraorbital notch is a small groove at superior and medial margin of the orbit in the frontal bone. The supraorbital nerve passes through this notch prior to dividing into superficial and deep components that provide sensory innervation to the ipsilateral forehead. The supraorbital nerve is a branch of the frontal nerve arising from the ophthalmic division of the trigeminal nerve (cranial nerve V).[1] The foramen sits on the inmost, lower margin of a grove splitting the supraorbital ridge into a central and two distal sections.[2] In vivo, it is often covered with connective tissue to form a supraorbital foramen.[citation needed] ...
"Nasolacrimal anatomy and haplorhine origins". Journal of Human Evolution. 114: 176-183. doi:10.1016/j.jhevol.2017.11.004. ISSN ...
Rossie, James B; Smith, Timothy D; Beard, K Christopher; Godinot, Marc; Rowe, Timothy B (2018). "Nasolacrimal anatomy and ...
It may also block the nasolacrimal duct. Spread of the tumor into the orbit causes proptosis. Maxillary sinus cancer that has ...
The upper part of this fossa lodges the lacrimal sac, the lower part, the nasolacrimal duct. The portion behind the crest is ... Rarely, the lacrimal bones fused with the nasal bones to form a pair of "nasolacrimal" crests, which are present in dinosaurs ... The fluid then flows through the nasolacrimal duct and into the nasopharynx. This drainage results in what is commonly referred ... Lacrimal bone Lacrimal bone Maliborski, A; Różycki, R (2014). "Diagnostic imaging of the nasolacrimal drainage system. Part I. ...
Blockage of the naso-lacrimal duct prevents drainage of the lacrimal sac, which may lead to infection, causing a painful ... The lacrimal sac or lachrymal sac is the upper dilated end of the nasolacrimal duct, and is lodged in a deep groove formed by ... Like the nasolacrimal duct, the sac is lined by stratified columnar epithelium with mucus-secreting goblet cells, with ... in length; its upper end is closed and rounded; its lower is continued into the nasolacrimal duct. Its superficial surface is ...
The lacrimal bone also contains the nasolacrimal duct. The superior bony margin of the orbital rim, otherwise known as the ... Medially, near the orbital margin, is located the groove for nasolacrimal duct. Near the middle of the floor, located ...
... and the inferior meatus provides drainage for the nasolacrimal duct. The internal nasal valve comprises the area bounded by the ...
"Ontogeny of the nasolacrimal duct in primates: functional and phylogenetic implications". Journal of Anatomy. 210 (2): 195-208 ...
Obstruction of the punctum, nasolacrimal canal, or nasolacrimal duct can cause even normal levels of the basal tear to overflow ... Nasolacrimal System Anatomy at eMedicine Brody, Jane E. (1984-02-22). "It's O.K. to cry". The New York Times. Personal Health. ... From the punctum, tears will enter the lacrimal sac, then on to the nasolacrimal duct, and finally into the nasal cavity. An ...
"Acquired nasolacrimal duct obstructions secondary to naso-orbito-ethmoidal fractures: patterns and outcomes". Ophthalmic Plast ... "Outcome of probing for congenital nasolacrimal duct obstruction in older children". Am J Ophthalmol. 130 (1): 42-8. doi:10.1016 ... Noncontiguous spread of palpebral conjunctival melanoma to the nasolacrimal duct". Indian J Ophthalmol. 66 (2): 302-303. doi: ...
Neurilemmoma of the anterior ethmoidal nerve encroaching upon the nasolacrimal duct. British Journal of Ophthalmology. 76(12): ... "Neurilemmoma of the anterior ethmoidal nerve encroaching upon the nasolacrimal duct". The British Journal of Ophthalmology. 76 ...
... and the inferior meatus provides drainage for the nasolacrimal duct. The internal nasal valve comprises the area bounded by the ...
Additionally, the nasolacrimal duct and sinuses are connected to the nasal passage. The horse's respiratory system not only ...
Infection of the nasolacrimal duct can result in chronic epiphora (excess tearing). Ulcerative skin disease can also result ...
... and nasolacrimal duct obstruction. United States Patent and Trademark Office, U.S. Trademark 71,503,981. Filing date June 15, ... "Monocanalicular silastic intubation for the initial correction of congenital nasolacrimal duct obstruction". J AAPOS. 11 (2): ...
Blood may also come up the nasolacrimal duct and out from the eye. Risk factors include trauma, including putting the finger in ...
Preventive treatment of severe dryness with measures such as nasolacrimal duct blockage is important.[citation needed] Liver ...
A mutation in this gene has been associated with bilateral nasolacrimal duct obstruction (LCDD). [provided by RefSeq, Jun 2016 ...
The lateral nasal prominence is separated from the maxillary prominence by the nasolacrimal groove. As the maxillary ... forming the Nasolacrimal duct. This duct is formed when the ectoderm thickens into a cord and sinks into the underlying ...
Jessup reports one owl having eye lesions from infection spreading into the nasolacrimal duct. Bony involvement can occur after ...
... cancer sinusitis The nasolacrimal system is located within the maxillary bone. The purpose of the nasolacrimal ducts is to ... Nasolacrimal duct obstruction disrupts the lacrimal drainage system, eventually creating a swelling cyst in the lacrimal sac ... The uncommon condition forms as a result as a consequence of narrowing or obstruction of the nasolacrimal duct, usually during ... In order to go forward with the study, nasolacrimal duct discharges were injected into growth medium to isolate and determine ...
... which is converted into the nasolacrimal canal, by the lacrimal bone and inferior nasal concha; this canal opens into the ... inferior meatus of the nose and transmits the nasolacrimal duct. Horizontal section of nasal and orbital cavities. This article ...
In infants with nasolacrimal defects, a nasolacrimal duct probe is used and a tube replacement, either temporary (Crawford) or ... failure of the nasolacrimal duct to open. Another cause could be poor reconstruction of the nasolacrimal duct system after ... in that tears will drain down the face rather than through the nasolacrimal system. Causes of epiphora are any that cause ... canalicular or nasolacrimal duct obstruction). The latter is often due to aging (a spontaneous process), conjunctivochalasis, ...
Most notably, obstruction of the nasolacrimal duct leads to stasis of the nasolacrimal fluid, which predisposes to infection. ... When nasolacrimal duct obstruction is secondary to a congenital barrier it is referred to as dacrocystocele. It is most ... Dacryocystitis is an infection of the lacrimal sac, secondary to obstruction of the nasolacrimal duct at the junction of ... The mainstays of treatment are oral antibiotics, warm compresses, and relief of nasolacrimal duct obstruction by ...
The upper part of this fossa lodges the lacrimal sac, the lower part, the nasolacrimal duct. The portion behind the crest is ...
It is used to identify obstructions, for example in the lacrimal duct, nasal cavity or nasolacrimal duct. The typical procedure ... can be hazardous if quickly drained and absorbed through the nasolacrimal duct. DSG is considered the best method to ...
Failure of the nasolacrimal drainage system can cause dry eye or leakage of tears onto the face. As field dogs they are prone ...
The human nasolacrimal ducts are a borderland of both disciplines opthalmology and otorhinolaryngology which work closely ... The author summarizes recent advances about the nasolacrimal ducts and discusses them in a context with nasolacrimal duct ... The Human Nasolacrimal Ducts. Authors. * Friedrich Paulsen Series Title. Advances in Anatomy, Embryology and Cell Biology. ... The human nasolacrimal ducts are a borderland of both disciplines opthalmology and otorhinolaryngology which work closely ...
Sinus Center provides state-of-the-art care to patients with sinus and allergy disorders including treatment of nasolacrimal ... Nasolacrimal Duct Obstruction: What You Need to Know. *Symptoms of nasolacrimal duct obstruction include constant and severe ... Conditions We Treat: Nasolacrimal Duct Obstruction. The experts in the Sinus Center collaborate with their colleagues at the ... Nasolacrimal duct obstruction is a condition in which tears do not drain properly from the eye into the nose, because of a ...
Nasolacrimal canal definition at Dictionary.com, a free online dictionary with pronunciation, synonyms and translation. Look it ... Words nearby nasolacrimal canal. nasogastric, nasogastric tube, nasolabial, nasolabial node, nasolacrimal, nasolacrimal canal, ... nasolacrimal canal. *. The ventral ramus joins the horizontal and dorsal rami of the septomaxillary at the anterior end of the ... The bony canal that is formed by the maxilla, lacrimal bone, and inferior concha and transmits the nasolacrimal duct. ...
nasolacrimal mucocele synonyms, nasolacrimal mucocele pronunciation, nasolacrimal mucocele translation, English dictionary ... definition of nasolacrimal mucocele. mucocele. Translations. English: mu·co·cele n. mucocele, dilatación de una cavidad ósea ... redirected from nasolacrimal mucocele). Also found in: Medical, Encyclopedia. Translations. mu·co·cele n. mucocele, dilatación ... Nasolacrimal mucocele - definition of nasolacrimal mucocele by The Free Dictionary https://www.thefreedictionary.com/ ...
nasolacrimal duct synonyms, nasolacrimal duct pronunciation, nasolacrimal duct translation, English dictionary definition of ... Noun 1. nasolacrimal duct - a duct that carries tears from the lacrimal sac to the nasal cavity duct, epithelial duct, canal, ... nasolacrimal duct. Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.. Related to nasolacrimal duct: nasolacrimal duct ... Nasolacrimal duct intubation was performed as a primary treatment for NLDO in 65 eyes of 59 patients.. Nasolacrimal duct ...
encoded search term (Nasolacrimal Duct Obstruction and Epiphora) and Nasolacrimal Duct Obstruction and Epiphora What to Read ... Classification of nasolacrimal drainage obstruction. The 2 types of acquired nasolacrimal drainage obstructions (NLDO) are ... Treatment of complete obstruction of the nasolacrimal system by temporary placement of nasolacrimal polyurethane stents: ... Nasolacrimal Duct Obstruction and Epiphora. Updated: Aug 17, 2018 * Author: Sandra R Worak, MD; Chief Editor: Hampton Roy, Sr, ...
Dacryostenosis A very common condition in which the extreme end of the nasolacrimal duct underneath the inferior turbinate ... The congenital problems that can affect the nasolacrimal system are outlined below. ... Nasolacrimal obstruction occurs in 2-4% of newborns. Of those patients with serious nasolacrimal obstruction (nonresponsive to ... encoded search term (Congenital Anomalies of the Nasolacrimal Duct) and Congenital Anomalies of the Nasolacrimal Duct What to ...
The canal containing the nasolacrimal duct is called the nasolacrimal canal. It is formed by indentations in the inferior nasal ...
The canal containing the nasolacrimal duct is called the nasolacrimal canal. In humans, the tear ducts in males tend to be ... The nasolacrimal duct (also called the tear duct) carries tears from the lacrimal sac of the eye into the nasal cavity. The ... Obstruction of the nasolacrimal duct may occur. This leads to the excess overflow of tears called epiphora (chronic low-grade ... This is for the same reason when applying some eye drops it is often advised to close the nasolacrimal duct by pressing it with ...
This report describes symptoms and management of an isolated nasolacrimal duct stone with a review of the literature.. ... Our case report describes a patient with nasolacrimal duct osteoma who presented with ipsilateral ocular pain, epiphora, and ...
Silicone intubation for partial and total nasolacrimal duct obstruction in adults.. Angrist RC1, Dortzbach RK. ... We performed silicone intubation for both partial and total nasolacrimal duct obstructions in adults. Twenty-three cases with ... We recommend silicone intubation for partial nasolacrimal duct obstructions and dacryocystorhinostomy for total obstructions. ...
Nasolacrimal Duct Obstruction. Nasolacrimal duct obstruction is a relatively common cogenitial abnormality in the neonatal ... Paul, T. 0., & Shepherd, R. (1994). Congenital nasolacrimal duct obstruction: natural history and the timing of optimal ...
... effective procedure to address congenital nasolacrimal duct obstruction that persists after standa ... Balloon Dacryoplasty for Congenital Nasolacrimal Duct Obstruction OTA AAO OTAC Oculoplastics and Orbit Panel, Hoskins Center ... Purpose: To identify the efficacy and adverse event rates of balloon dacryoplasty in cases of congenital nasolacrimal duct ... effective procedure to address congenital nasolacrimal duct obstruction that persists after standard probings. The outcomes of ...
... The CMGs are guidelines on the diagnosis and management of a ... Nasolacrimal duct obstruction (nasolacrimal drainage dysfunction). Version 6. Date of search 17.11.17. Date of revision 29.03. ... Probing (through puncta, canaliculi, sac, to nasolacrimal duct). *Congenital: not until 12 months of age to allow for ... In adults, the blockage can be confirmed by attempting to pass a little saline solution through the nasolacrimal duct, using a ...
What is nasolacrimal mucocele? Meaning of nasolacrimal mucocele medical term. What does nasolacrimal mucocele mean? ... Looking for online definition of nasolacrimal mucocele in the Medical Dictionary? nasolacrimal mucocele explanation free. ... redirected from nasolacrimal mucocele). Also found in: Dictionary, Encyclopedia. mucocele. [mu´ko-sēl] 1. dilation of a cavity ... An abnormal enlargement of a cavity, such as the lacrimal sac when the nasolacrimal sac is blocked (or obstructed). The ...
What is nasolacrimal canal? Meaning of nasolacrimal canal medical term. What does nasolacrimal canal mean? ... Looking for online definition of nasolacrimal canal in the Medical Dictionary? nasolacrimal canal explanation free. ... nasolacrimal canal. The bony groove or conduit from the lacrimal bone through the MAXILLA that carries the NASOLACRIMAL DUCT.. ... nasolacrimal canal. Also found in: Dictionary, Thesaurus, Legal, Encyclopedia, Wikipedia. na·so·lac·ri·mal ca·nal. [TA] the ...
Nasolacrimal duct obstruction is a congenital disorder, caused by either a failure of the distal nasolacrimal duct to cannulate ... Are you sure your patient has nasolacrimal duct obstruction? What are the typical findings for this disease?. Nasolacrimal duct ... When nasolacrimal duct obstruction does not resolve spontaneously, nasolacrimal duct probing is performed. Some ... In some cases of nasolacrimal duct obstruction, the inferior turbinate blocks the exit of the nasolacrimal duct along the ...
Infected congenital mucocele of the nasolacrimal duct.. J R Meyer, D J Quint, J M Holmes and B J Wiatrak ... Infected congenital mucocele of the nasolacrimal duct. Message Subject (Your Name) has sent you a message from American Journal ... The authors report their experience with an infant presenting with an infected nasolacrimal duct mucocele, emphasizing ... dilatation of the nasolacrimal duct, and 3) a submucosal nasal cavity mass; findings which are diagnostic of this entity. A ...
http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#Nasolacrimal_Duct Cigarette Smoke Exposure Ontology LOOM ... http://ncicb.nci.nih.gov/xml/owl/EVS/Thesaurus.owl#Nasolacrimal_Duct Sage Bionetworks Synapse Ontology LOOM ... http://scai.fraunhofer.de/CSEO#Nasolacrimal_Duct Cigarette Smoke Exposure Ontology LOOM ...
A rare cause of nasolacrimal duct obstruction: dentigerous cyst in the maxillary sinus. Download Prime PubMed App to iPhone, ... A Rare Cause of Nasolacrimal Duct Obstruction: Dentigerous Cyst in the Maxillary Sinus. Indian J Ophthalmol. 2009 Nov-Dec;57(6 ... "A Rare Cause of Nasolacrimal Duct Obstruction: Dentigerous Cyst in the Maxillary Sinus." Indian Journal of Ophthalmology, vol. ... A rare cause of nasolacrimal duct obstruction: dentigerous cyst in the maxillary sinus. Indian J Ophthalmol. 2009;57(6):465-7. ...
Find out information about nasolacrimal. The membranous duct lodged within the nasolacrimal canal; it gives passage to the ... tears from the lacrimal sac to the inferior meatus of the nose Explanation of nasolacrimal ... Related to nasolacrimal: nasolacrimal canal, iridoplegia. nasolacrimal duct. [¦nā·zō′lak·rə·məl ′dəkt] (anatomy) The membranous ... nasolacrimal duct. (redirected from nasolacrimal). Also found in: Dictionary, Thesaurus, Medical. ...
Basically the naso-lacrimal ducts job is to carry tears (also called lacrimal fluid) from the eye down into the nose. ... Interestingly a horses tears are not supposed to flow down the horses face; if they do, then likely the naso-lacrimal duct is ...
In children the majority of nasolacrimal duct obstruction is congenital. ... Nasolacrimal duct obstruction is a blockage of the lacrimal drainage system. ... The procedure involves nasolacrimal duct probing followed by the passage of a nasolacrimal duct probe that has a stent swedged ... Primary treatment of nasolacrimal duct obstruction with nasolacrimal duct intubation in children younger than 4 years of age. J ...
Diseases and Conditions › Pediatric Ophthalmology › Congenital Nasolacrimal Duct Obstruction Congenital Nasolacrimal Duct ... Sasha Mansukhani Congenital Nasolacrimal Duct Obstruction Congenital Nasolacrimal Duct Obstruction 01/02/2015 01/02/2015 ... Balloon catheter dilation and nasolacrimal duct intubation for treatment of nasolacrimal duct obstruction after failed probing. ... Balloon catheter dilation and nasolacrimal duct intubation for treatment of nasolacrimal duct obstruction after failed probing. ...
Using an endoscope allows the clinician to visualize the tip of the probe and remove a pediatric nasolacrimal duct obstruction ... Using an endoscope allows the clinician to visualize the tip of the probe and remove a pediatric nasolacrimal duct obstruction ... "With an endoscope, PNLDO suddenly changes from blocked/not blocked to defining anatomically where the nasolacrimal duct is ... San Francisco-Adding endoscopy to ones skills set can dramatically improve the treatment of pediatric nasolacrimal duct ...
Nasolacrimal duct obstruction. Balloon catheter nasolacrimal duct dilation. Nasolacrimal intubation. Simple Nasolacrimal duct ... Procedure: Nasolacrimal balloon catheter dilation Procedure: Nasolacrimal intubation Procedure: Nasolacrimal duct probing Phase ... surgeons began to probe the nasolacrimal duct and to place a temporary stent in the nasolacrimal duct. Nasolacrimal duct ... More recently, the nasolacrimal probe has been combined with a balloon designed to forcibly expand the nasolacrimal duct, a ...
Lacrimal Gland Volume Changes in Unilateral Primary Acquired Nasolacrimal Obstruction Alper Yazıcı; Erdogan Bulbul; Hasmet ... Primary acquired nasolacrimal duct obstruction (PANDO), mostly seen in postmenopausal females, is one of the most common causes ... It is associated with chronic inflammation and fibrosis of the nasolacrimal duct.3 It is possible that delayed tear clearance ... Lacrimal Gland Volume Changes in Unilateral Primary Acquired Nasolacrimal Obstruction You will receive an email whenever this ...
Bilateral nasolacrimal duct mucocele, a rare cause of respiratory distress: CT findings in two newborns.. M Castillo, D F ... Bilateral nasolacrimal duct mucocele, a rare cause of respiratory distress: CT findings in two newborns. ... Bilateral nasolacrimal duct mucocele, a rare cause of respiratory distress: CT findings in two newborns. ... Bilateral nasolacrimal duct mucocele, a rare cause of respiratory distress: CT findings in two newborns. ...
ပင်မစာမျက်နှာအခြေအနေများ & ကုသမှုကုသEndoscopic Surgery for the Treatment of Nasolacrimal Duct Obstruction (Blocked Tear Ducts) ... This new route bypasses the duct that empties into the nose (nasolacrimal duct), which is the most common site of blockage, and ... Endoscopic Surgery for the Treatment of Nasolacrimal Duct Obstruction (Blocked Tear Ducts) ... indicating whether the blockage is in the nasolacrimal duct, the puncta, or the lacrimal sac. It can also help to identify the ...
  • Nasolacrimal duct intubation was performed as a primary treatment for NLDO in 65 eyes of 59 patients. (thefreedictionary.com)
  • Of those patients with serious nasolacrimal obstruction (nonresponsive to 2 or more probing procedures, with or without intubation), 35% have nasolacrimal duct obstruction, 15% have punctal agenesis, 10% have congenital fistulas, and 5% have craniofacial defects. (medscape.com)
  • Silicone intubation for partial and total nasolacrimal duct obstruction in adults. (nih.gov)
  • We recommend silicone intubation for partial nasolacrimal duct obstructions and dacryocystorhinostomy for total obstructions. (nih.gov)
  • To report the success proportions for the treatment of persistent nasolacrimal duct obstruction for three surgical procedures: balloon catheter dilation, nasolacrimal intubation, and simple probing. (clinicaltrials.gov)
  • To obtain descriptive data regarding symptoms and quality of life in patients receiving each type of surgical procedure, and to compare success proportions between patients undergoing balloon catheter dilation and those undergoing nasolacrimal intubation. (clinicaltrials.gov)
  • Nasolacrimal duct intubation consists of punctal dilation of at least one punctum with the passage of a flexible lacrimal probe into the nose and the placement of a temporary stent in the nasolacrimal duct. (clinicaltrials.gov)
  • Clinicians choose among repeat probing, repeat probing with inferior turbinate infracture, multipass probing, balloon catheter dilation, and nasolacrimal duct intubation. (clinicaltrials.gov)
  • Nasolacrimal duct intubation has been an alternative to probing for relief of NLDO for more than thirty years. (clinicaltrials.gov)
  • In this work, we describe an innovative shape memory polymer (SMP) as a superior alternative to conventional silicone-based materials for nasolacrimal duct intubation. (elsevier.com)
  • To investigate the effects of intranasal steroid spray after silicone tube intubation in nasolacrimal duct obstruction. (bvsalud.org)
  • We included 73 patients (73 eyes) who had undergone silicone tube intubation with partial nasolacrimal duct obstruction and who had been followed-up for more than 6 months. (bvsalud.org)
  • Silicone tube intubation is an effective treatment option for adults diagnosed with partial nasolacrimal duct obstruction, and postoperative intranasal steroid application may contribute to improvement of ocular symptoms after the surgery. (bvsalud.org)
  • Hui, JI, Shriver, EM & Tse, DT 2011, ' Reply re: "intubation of the ostium and nasolacrimal duct with a single self-linking silicone stent in external dacryocystorhinostomy" ', Ophthalmic plastic and reconstructive surgery , vol. 27, no. 5. (elsevier.com)
  • The 2 types of acquired nasolacrimal drainage obstructions (NLDO) are primary and secondary. (medscape.com)
  • Nasolacrimal duct obstruction (NLDO) is the most common lacrimal abnormality in infants and children, occurring in 2% to 30% of newborns, most commonly secondary to incomplete canalization of the distal nasolacrimal duct, specifically the valve of Hasner. (thefreedictionary.com)
  • Nasolacrimal duct obstruction (NLDO) is a common ocular condition in the first year of life. (clinicaltrials.gov)
  • In patients who develop dacryocystitis following nasolacrimal duct obstruction (NLDO), infective materials that accumulate in the sac may enlarge the sac in a form similar to congenital dacryocystocele [3]. (thefreedictionary.com)
  • Purpose To determine whether demographic or clinical factors are associated with the outcome of office-based nasolacrimal duct probing for the treatment of congenital nasolacrimal duct obstruction (NLDO). (elsevier.com)
  • 15 months with NLDO underwent a nasolacrimal duct probing performed in the office using topical anesthesia. (elsevier.com)
  • In a prospective, controlled, interventional case series, 87 patients with symptomatic PANDO (case), 7 with traumatic nasolacrimal duct obstruction (NLDO) (control), 2 with congenital NLDO (control), and 70 asymptomatic females (control) were enrolled. (qxmd.com)
  • a surgical technique used for the treatment of primary nasolacrimal duct obstruction (NLDO). (e-tjo.org)
  • Dacryocystorhinostomy (DCR) is currently the preferred treatment for nasolacrimal duct obstruction (NLDO). (e-tjo.org)
  • From February 2012, we began using the endonasal endoscopic nasolacrimal duct dissection (EE-NLDD) surgical technique for all patients with primary NLDO without a history of acute dacryocystitis. (e-tjo.org)
  • The human nasolacrimal ducts are a borderland of both disciplines opthalmology and otorhinolaryngology which work closely together in the tretament of nasolacrimal disorders. (springer.com)
  • The author summarizes recent advances about the nasolacrimal ducts and discusses them in a context with nasolacrimal duct pathophysiology. (springer.com)
  • As a draining and secretory system the nasolacrimal ducts play a role in tear transport and non-specific immune defense. (springer.com)
  • Organized mucosa-associated lymphoid tissue (MALT) is present in the nasolacrimal ducts displaying the cytomorphological and immunophenotypic features of MALT. (springer.com)
  • Nasolacrimal duct obstruction is a condition in which tears do not drain properly from the eye into the nose, because of a blockage of the tear ducts. (hopkinsmedicine.org)
  • The paired nasolacrimal ducts carry lacrimal secretions from the eye to the nasal cavity, and originate as oval openings near the edge of the medial canthus of the eyelids. (wikipedia.org)
  • We used 18 postmortem lacrimal sacs and nasolacrimal ducts of 12 Japanese subjects (5 males, 7 females, aged 75-98 years at death). (arvojournals.org)
  • The microorganisms isolated from conjunctival swab samples of patients with occluded nasolacrimal ducts and their susceptibility to antibiotics, as well as the operation outcomes in all the patients were retrospectively investigated. (biomedcentral.com)
  • 42 eyes of 30 male individuals, and 83 eyes of 60 female individuals) from a total of 3754 eyes of 2384 patients by using irrigation samples of nasolacrimal ducts. (biomedcentral.com)
  • The tears flow over the eye, then drain through the nasolacrimal ducts. (encyclopedia.com)
  • The tears pass from the sacs into the nasolacrimal ducts and then into the nose. (encyclopedia.com)
  • Purpose: To investigate the efficacy and safety of adjunctive low-dose mitomycin-C during lacrimal probing for adults with blocked nasolacrimal ducts. (elsevier.com)
  • This leads to the excess overflow of tears called epiphora (chronic low-grade nasolacrimal duct occlusion). (wikipedia.org)
  • Lacrimal sac and nasolacrimal duct tumors are rare, but they should be considered as a possible etiology in patients with acquired epiphora because most of these tumors are malignant. (thefreedictionary.com)
  • Our case report describes a patient with nasolacrimal duct osteoma who presented with ipsilateral ocular pain, epiphora, and medial canthal swelling. (biomedsearch.com)
  • The signs of nasolacrimal duct obstruction consist of an increased tear lake, mucous or mucopurulent discharge, and epiphora. (aao.org)
  • Primary acquired nasolacrimal duct obstruction (PANDO), mostly seen in postmenopausal females, is one of the most common causes of epiphora. (arvojournals.org)
  • All symptomatic cases of epiphora, which were diagnosed for primary acquired nasolacrimal duct obstruction or chronic dacryocystitis. (thefreedictionary.com)
  • Epiphora and " red eye " Conjunctivitis Corneal abrasion Congenital nasolacrimal duct obstruction Uveitis Keratitis 4. (symptoma.com)
  • A nasolacrimal duct obstruction is an acquired or congenital obstruction of the drainage system resulting in epiphora or excessive tearing. (decisionmakerplus.net)
  • Epiphora is the overflow of tears typically caused by obstruction or occlusion of the nasolacrimal duct. (elsevier.com)
  • Participants: From January 1998 to December 2000, a total of 32 adult patients (36 eyes) seen with epiphora caused by primary nasolacrimal duct obstruction was treated and evaluated. (elsevier.com)
  • Conclusions: Our experience suggests good long-term results for probing with adjunctive, topical Mitomycin-C for cases of adult epiphora caused by obstruction of the nasolacrimal duct followed by repeat procedure if necessary. (elsevier.com)
  • Liu, Jorn H. / Efficacy of probing the nasolacrimal duct with adjunctive mitomycin-C for epiphora in adults . (elsevier.com)
  • Congenital obstruction of nasolacrimal duct is a very common cause of epiphora in new born children.Controversy exists regarding the natural course and management of children with congenital nasolacrimalduct obstruction. (who.int)
  • Damage to the nasolacrimal duct during major sinus procedures results in troublesome symptoms of epiphora and acute infection. (cambridge.org)
  • The authors report their experience with an infant presenting with an infected nasolacrimal duct mucocele, emphasizing correlation of clinical, CT, and surgical findings. (ajnr.org)
  • Bilateral nasolacrimal duct mucocele, a rare cause of respiratory distress: CT findings in two newborns. (ajnr.org)
  • article{Meyer1993InfectedCM, title={Infected congenital mucocele of the nasolacrimal duct. (semanticscholar.org)
  • Congenital nasolacrimal sac mucocele associated with respiratory distress. (semanticscholar.org)
  • Saitoh T, Murata J, Ikeda K (2015) Endoscopic Marsupialization of Adult Nasolacrimal Sac Mucocele: Reports of Two Cases. (scitechnol.com)
  • Adult nasolacrimal sac mucocele, dacryocystocele, is a rare complication of chronic dacryocysitis. (scitechnol.com)
  • Nasolacrimal sac mucocele in both cases was successfully cured by endoscopic marsupialization. (scitechnol.com)
  • The successful outcomes were obtained by endoscopic marsupialization of the nasolacrimal sac mucocele. (scitechnol.com)
  • Symptoms of nasolacrimal duct obstruction include constant and severe tearing and recurrent eye and tear duct infections (dacryocystitis). (hopkinsmedicine.org)
  • Dacryocystitis is produced by obstruction of the nasolacrimal duct with resultant tear stasis. (wikipedia.org)
  • Congenital dacryocystitis is caused by incomplete canalization of the nasolacrimal duct (specifically at the valve/membrane of Hasner). (thefreedictionary.com)
  • Chronic dacryocystitis is defined as the chronic inflammation of the lacrimal sac due to stricture of the nasolacrimal duct secondary to chronic inflammation, which is usually nasal in origin. (thefreedictionary.com)
  • Acquired nasolacrimal duct or canalicular obstructions can occur following trauma, viral conjunctivitis, acute dacryocystitis, and use of topical antiviral medications. (aao.org)
  • The association of neonatal dacryocystoceles and infantile dacryocystitis with nasolacrimal duct cysts (an American Ophthalmological Society thesis). (pediatriconcall.com)
  • Furthermore, these studies indicated that nasolacrimal duct obstruction might cause lacrimal sac and conjunctival bacterial contamination even in the absence of dacryocystitis. (biomedcentral.com)
  • Furthermore, in all the patients having nasolacrimal duct obstruction regardless of the presence or absence of dacryocystitis we examine both their washings and conjunctival swab samples for bacteriological growth. (biomedcentral.com)
  • Tear duct blockage may lead to an infection (dacryocystitis) in part of the nasolacrimal duct called the lacrimal sac. (medlineplus.gov)
  • Learn more about how we treat nasolacrimal duct obstruction with tear duct surgery. (hopkinsmedicine.org)
  • A newer technique to treat nasolacrimal duct obstruction has shown to be a success with the added advantage of sparing the pediatric patient a scar on the face. (chop.edu)
  • Why Choose Johns Hopkins for Nasolacrimal Duct Obstructions? (hopkinsmedicine.org)
  • Rely on the expertise of our physicians to treat Nasolacrimal Duct Obstructions. (hopkinsmedicine.org)
  • Congenital obstructions tend to produce symptoms during the neonatal period and are the subject of another article, Nasolacrimal Duct, Congenital Anomalies . (medscape.com)
  • The clinical documentations of mechanical nasolacrimal duct obstructions due to a dentigerous cyst in the maxillary sinus are very rare in literature. (unboundmedicine.com)
  • A family with 3 affected members is presented in this series with similar incomplete punctal canalization and nasolacrimal duct obstructions. (symptoma.com)
  • Acquired nasolacrimal duct obstructions can be non-specific (idiopathic) or specific in nature. (decisionmakerplus.net)
  • Congenital nasolacrimal obstructions are a result of an imperforated membrane that usually spontaneously opens at the time of birth. (decisionmakerplus.net)
  • Specific causes of nasolacrimal obstructions are caused by inflammatory conditions like sarcoidosis and Wegener's granulomatosis as well as infections, trauma, surgical injury, foreign bodies, or neoplasm of the lacrimal sac and duct. (decisionmakerplus.net)
  • The nasolacrimal duct (also called the tear duct) carries tears from the lacrimal sac of the eye into the nasal cavity. (wikipedia.org)
  • The opening of the nasolacrimal duct into the inferior nasal meatus of the nasal cavity is partially covered by a mucosal fold (valve of Hasner or plica lacrimalis). (wikipedia.org)
  • This is for the same reason when applying some eye drops it is often advised to close the nasolacrimal duct by pressing it with a finger to prevent the medicine from escaping the eye and having unwanted side effects elsewhere in the body as it will proceed through the canal to the Nasal Cavity. (wikipedia.org)
  • This new route bypasses the duct that empties into the nose (nasolacrimal duct), which is the most common site of blockage, and allows tears to drain directly into the nasal cavity. (bumrungrad.com)
  • Flexible fiberoptic nasal endoscopy demonstrated an anterior nasal mass below the inferior turbinate occluding the entire right nasal cavity consistent with a nasolacrimal cyst. (csurgeries.com)
  • The nasolacrimal duct is a channel that allows tears to drain from the external eye to the nasal cavity. (decisionmakerplus.net)
  • The nasolacrimal duct is a duct that connects the lacrimal glands in the eye to the nasal cavity. (patelplasticsurgery.com)
  • [5] To avoid this problem and improve functional outcomes, we modified the conventional endoscopic DCR by creating an ostium between the nasal cavity and the nasolacrimal duct (NLD), rather than between the nasal cavity and the lacrimal sac, to avoid the backflow from the pouch. (e-tjo.org)
  • Medical management of congenital nasolacrimal duct obstruction. (sciencepublishinggroup.com)
  • In the management of congenital nasolacrimal duct obstruction (CNDO), there is not a well-established agreement about the proper time for probing. (elsevier.com)
  • Fingerprint Dive into the research topics of 'Management of congenital nasolacrimal duct obstruction. (elsevier.com)
  • Clinical and histological effects of the temporary occlusion of the rabbit nasolacrimal duct and point using cyanoacrylate adhesives. (thefreedictionary.com)
  • Failure of an initial probing is thought to be associated with abnormal nasolacrimal anatomy, closure by healing of the surgical opening in the nasolacrimal duct, continued occlusion by the inferior turbinate, creation of a false passage, or faulty technique. (clinicaltrials.gov)
  • The Science behind the Tip Manual nasolacrimal occlusion after eye drop instillation is often taught to glaucoma patients because of the belief that to do so will enhance the intraocular pressure (IOP) lowering effect and reduce systemic absorption of glaucoma medications. (eugs.org)
  • The canal containing the nasolacrimal duct is called the nasolacrimal canal. (wikipedia.org)
  • citation needed] The canal containing the nasolacrimal duct is called the nasolacrimal canal. (wikipedia.org)
  • The bony canal that is formed by the maxilla, lacrimal bone, and inferior concha and transmits the nasolacrimal duct. (dictionary.com)
  • [ 5 ] They noted that changes in the anteroposterior dimensions of the bony nasolacrimal canal coincide with osteoporotic changes throughout the body. (medscape.com)
  • The first slice was cut around the internal canalicular punctum, the second slice was at the superior opening of the bony nasolacrimal canal, and the other four were harvested from the nasolacrimal duct. (arvojournals.org)
  • the duct that passes through the hole ( nasolacrimal canal ) in the palatine bone of the skull. (enacademic.com)
  • Проток Носослезный (Nasolacrimal Duct) - проток, проходящий в одноименном канале (nasolacrimal canal). (enacademic.com)
  • Anatomical Characterization of the Nasolacrimal Canal Based on Computed Tomography in Children With Complex Congenital Nasolacrimal Duct Obstruction. (sciencepublishinggroup.com)
  • These early inflammatory conditions encourage the nose and the respiratory-like mucus membranes in the nasolacrimal canal to release more inflammatory mediators resulting in obstruction of the structure. (decisionmakerplus.net)
  • Prevalence of nasolacrimal canal obstruc. (marmara.edu.tr)
  • Clinicians should evaluate the lacrimal canal position and schedule close postoperative follow-up of injuries to the nasolacrimal apparatus. (marmara.edu.tr)
  • Regurgitation of purulent material into the eye can cause conjunctivitis and a history of recurrent "pink eye" in an infant or young child should alert the investigator to the presence of nasolacrimal duct obstruction. (aao.org)
  • It is beneficial, therefore, to test for the presence of nasolacrimal duct obstruction prior to cataract surgery to prevent postoperative bacterial infection in the eye. (biomedcentral.com)
  • A history of tearing and mucous or mucopurulent discharge and recurrent pink eye in a young child should alert the physician to the presence of nasolacrimal duct obstruction. (sciencepublishinggroup.com)
  • Silbert, David I. / Office probing for treatment of nasolacrimal duct obstruction in infants . (elsevier.com)
  • Neoplasm[edit] Neoplasm should be considered in any patient presenting with nasolacrimal duct obstruction. (symptoma.com)
  • an imperfect valve at the opening of the nasolacrimal duct into the inferior meatus of the nose CARREIRO, J (2009). (wikipedia.org)
  • The fold that is normally present at the end of the nasolacrimal duct or the valve of Hasner may be absent, in which case, pneumatoceles of the sac may occur and nose blowing may cause retrograde passage of air. (medscape.com)
  • A finger placed on the medial canthus and firmly directed down the side of the nose is thought to increase pressure in the nasolacrimal sac, leading to a rupture of the occluding membrane. (renalandurologynews.com)
  • In some cases of nasolacrimal duct obstruction, the inferior turbinate blocks the exit of the nasolacrimal duct along the lateral wall of the nose. (renalandurologynews.com)
  • Eosinophil infiltration into airspaces and tissues of the lung, nose, sinus and nasolacrimal duct was blocked in allergic rats treated with gammaT. (thefreedictionary.com)
  • Balloon catheter nasolacrimal duct dilation consists of punctal dilation of at least one punctum and the passage into the nose of a semi-flexible wire probe with an inflatable balloon on the tip. (clinicaltrials.gov)
  • Simple nasolacrimal duct probing consists of punctal dilation of at least one punctum and the passage of a probe into the nose. (clinicaltrials.gov)
  • Tears then pass through the nasolacrimal system which lies under the skin and passes through an opening in the bone into the nose. (blackrockeyecare.com)
  • Often a thin tissue membrane remains over the opening that empties into the nose (nasolacrimal duct). (mayoclinic.org)
  • An acquired dacryocystocele is a diffuse and centrifugal enlargement of the lacrimal sac that forms as a result of obstruction of lacrimal drainage system proximally at the level of the common canaliculus and distally at the level of nasolacrimal duct [1]. (thefreedictionary.com)
  • The most common abnormality of the lacrimal drainage system is congenital or acquired nasolacrimal duct obstruction. (unboundmedicine.com)
  • AU - Ray,Biswarup, AU - Bandyopadhyay,Saumendra Nath, AU - Das,Debabrata, AU - Adhikary,Bivas, PY - 2009/10/29/entrez PY - 2009/10/29/pubmed PY - 2010/1/20/medline SP - 465 EP - 7 JF - Indian journal of ophthalmology JO - Indian J Ophthalmol VL - 57 IS - 6 N2 - The most common abnormality of the lacrimal drainage system is congenital or acquired nasolacrimal duct obstruction. (unboundmedicine.com)
  • Nasolacrimal duct obstruction is a blockage of the lacrimal drainage system. (aao.org)
  • The differential diagnosis of nasolacrimal duct obstruction includes acute conjunctivitis, glaucoma, congenital anomalies of the upper lacrimal drainage system (punctal or canalicular atresia or agenesis), entropion and triachiasis. (aao.org)
  • Computed tomography (CT) of the nasolacrimal drainage system with and without contrast medium (barium sulfate) was used to create an anatomic basis for clinical evaluation in domestic cats. (avmi.net)
  • These CT series were also used for a three-dimensional (3D) reconstruction of the nasolacrimal drainage system within surrounding structures. (avmi.net)
  • In noncontrast CT images, osseous structures limiting the nasolacrimal drainage system are easily recognizable. (avmi.net)
  • In most cats, this allows the identification of the nasolacrimal drainage system even without contrast enhancement. (avmi.net)
  • This close topographic relation may lead to problems with the nasolacrimal drainage system. (avmi.net)
  • In domestic cats the nasolacrimal drainage system consists of a descending and a horizontal part, which form an angle of approximately 90 degrees for unhindered drainage of the lacrimal fluid. (avmi.net)
  • Nasolacrimal drainage system obstruction may be caused by strictures, tumors, or foreign bodies (eg, stones, often associated with subclinical infection by Actinomyces ). (merckmanuals.com)
  • This method, in addition to confirming the cause of the condition, can also help to determine the location of the blockage, indicating whether the blockage is in the nasolacrimal duct, the puncta, or the lacrimal sac. (bumrungrad.com)
  • In our study, all 3 patients had nasolacrimal duct blockage. (thefreedictionary.com)
  • Latest Industry News*A sutureless wound closure technique called external dacryocystorhinostomy for nasolacrimal duct obstruction can ensure less scarring and better cosmesis compared to the subcuticular technique in external dacryocystorhinostomy procedures. (thefreedictionary.com)
  • In obstructive cases, dacryocystorhinostomy (endonasal or external) and Lester Jones tubes are the surgical options for nasolacrimal duct and canalicular obstruction, respectively. (thefreedictionary.com)
  • In the current retrospective study, none of the patients received surgical treatment i.e. tubing or dacryocystorhinostomy, for nasolacrimal duct obstruction at our institution to eliminate bacterial contamination in conjunctiva. (biomedcentral.com)
  • Alright so, I'm just going to show some of the anatomy of the nasolacrimal system, and do a dacryocystorhinostomy to demonstrate that. (jomi.com)
  • A very common condition in which the extreme end of the nasolacrimal duct underneath the inferior turbinate fails to complete its canalization in the newborn period and may produce clinical symptoms in 2-4% of newborns. (medscape.com)
  • This report describes symptoms and management of an isolated nasolacrimal duct stone with a review of the literature. (biomedsearch.com)
  • For those whose symptoms require treatment, most will be successfully cured with nasolacrimal probing. (renalandurologynews.com)
  • Espinoza GM,LuederGT.Outcomes in children with nasolacrimal duct obstruction: Significance of persistent symptoms while stents are in place. (sciencepublishinggroup.com)
  • Seven RCTs suggested that OMT leads to a significantly greater reduction in the symptoms of asthma, congenital nasolacrimal duct obstruction (posttreatment), daily weight gain and length of hospital stay, dysfunctional voiding, infantile colic, otitis media, or postural asymmetry compared with various control interventions. (aappublications.org)
  • During an ear infection, excess mucus may drain through the nasolacrimal duct in the opposite way tears drain. (wikipedia.org)
  • Computed tomography (CT) revealed that the tumor extended to and filled the entire length of the right nasolacrimal duct , from the orbit to the inferior meatus. (thefreedictionary.com)
  • A 59-year-old Caucasian woman with past medical history significant for Natural Killer (NK)/T-cell lymphoma of the right nasal septum in remission for nine months presented after surveillance PET-CT imaging revealed increased metabolic activity in the right nasolacrimal duct. (wisc.edu)
  • Neonatal respiratory distress: sequela of bilateral nasolacrimal duct obstruction. (pediatriconcall.com)
  • The maxillary sinus cysts usually obstruct the nasolacrimal duct mechanically. (unboundmedicine.com)
  • Nasolacrimal duct cyst - Nasolacrimal duct cysts are a cutaneous condition that is a developmental defect present at birth. (enacademic.com)
  • To investigate whether unilateral primary acquired nasolacrimal duct obstruction (PANDO) causes Schirmer score and lacrimal gland volume changes in the contralateral non-PANDO eye. (arvojournals.org)
  • Tears are produced in the lacrimal gland and drain through the upper and lower puncta into the canaliculi and then into the lacrimal sac and nasolacrimal duct (see figure Anatomy of the lacrimal system ). (merckmanuals.com)
  • Dacryostenosis is a condition whereby the nasolacrimal duct is narrowed or blocked and the glandular secretions into the eye are prevented from draining properly. (wikipedia.org)
  • Nasolacrimal duct obstruction--Also referred to as dacryostenosis. (thefreedictionary.com)
  • Excess tears flow through nasolacrimal duct which drains into the inferior nasal meatus. (wikipedia.org)
  • The Nasolacrimal Surgery Department is responsible for the treatment of conditions that are related to the production and drainage of tears. (eyedayclinic.gr)
  • In 1986, Linberg and McCormick coined the term primary acquired nasolacrimal duct obstruction (PANDO) to describe an entity of nasolacrimal duct obstruction caused by inflammation or fibrosis without any precipitating cause. (medscape.com)
  • To assess the factors assumed to be contributed in pathogenesis of primary acquired nasolacrimal duct obstruction (PANDO). (qxmd.com)
  • Clinical research has shown that nasolacrimal duct obstruction occurs in 2 to 4 out of 100 newborn babies. (patelplasticsurgery.com)
  • When nasolacrimal duct obstruction does not resolve spontaneously, nasolacrimal duct probing is performed. (renalandurologynews.com)
  • Nasolacrimal duct probing is performed by a pediatric ophthalmologist 3. (csurgeries.com)
  • Acquired forms of nasolacrimal duct obstruction are associated with chronic eye drop use, infections, systemic chemotherapy, and facial trauma. (renalandurologynews.com)
  • 67%) having chronic allergic rhinitis with transient nasolacrimal duct obstruction due to allergic edema. (thefreedictionary.com)
  • It is associated with chronic inflammation and fibrosis of the nasolacrimal duct. (arvojournals.org)
  • Nasolacrimal duct obstruction is a congenital disorder, caused by either a failure of the distal nasolacrimal duct to cannulate or by redundant nasal mucosa obstructing the duct. (renalandurologynews.com)
  • The usual site of obstruction is at the valve of Hasner, located at the distal end of the nasolacrimal duct. (renalandurologynews.com)
  • The etiology of congenital nasolacrimal duct obstruction is most commonly a membranous obstruction at the valve of Hasner at the distal end of the nasolacrimal duct. (aao.org)
  • Moscato EE, Kelly JP, Weiss A. Developmental anatomy of the nasolacrimal duct: implications for congenital obstruction. (medscape.com)
  • We examined the consecutive microscopic anatomy of the lacrimal sac and nasolacrimal duct with or without conspicuous inflammation. (arvojournals.org)
  • The microscopic anatomy of the lacrimal sac and nasolacrimal duct has received little attention in the field of ocular adnexa. (arvojournals.org)
  • Knowledge of the microscopic anatomy of these areas still is limited to the pathogenic concept of a primary acquired nasolacrimal duct obstruction, a syndrome of unknown origin. (arvojournals.org)
  • The experts in the Sinus Center collaborate with their colleagues at the Wilmer Eye Institute to surgically manage patients with nasolacrimal duct obstruction. (hopkinsmedicine.org)
  • Patients in whom this condition is suspected should be evaluated by an ophthalmologist who can make the diagnosis of nasolacrimal duct obstruction. (hopkinsmedicine.org)
  • Purpose: To investigate the outcome of probing in patients with congenital nasolacrimal duct obstruction and to evaluate the success rate among age groups. (thefreedictionary.com)
  • Results: Forty-six patients (24 girls (52.2%), 22 boys (47.8%)) diagnosed as congenital nasolacrimal duct obstruction were included in the study. (thefreedictionary.com)
  • All patients who underwent cataract day surgery routinely received nasolacrimal duct syringing with normal saline at the Wakayama Medical University Hospital, Japan, from 2011 to 2013. (biomedcentral.com)
  • All the patients receiving cataract day surgery underwent the operation after the elimination of conjunctival microorganism contamination in association with nasolacrimal duct obstruction by using appropriate topical antibiotics. (biomedcentral.com)
  • We routinely perform syringing of the nasolacrimal duct in pre-cataract surgery patients. (biomedcentral.com)
  • The susceptibilities of the bacteria isolated from the conjunctival swab samples of patients with occluded nasolacrimal duct, to antibiotics, were determined to eliminate conjunctival bacterial contamination. (biomedcentral.com)
  • Forty three patients with congenital nasolacrimal duct obstruction were examined by an E.N.T. specialist in Prince Ali Hospital for presence or absence of otitis media with effusion to investigate the association, if any, between otitis media with effusion and congenital nasolacrimal duct obstruction along with its impact on prognosis. (iasj.net)
  • In these patients as well, probing the lacrimal sac through the nasolacrimal duct is the treatment. (patelplasticsurgery.com)
  • The bony groove or conduit from the lacrimal bone through the MAXILLA that carries the NASOLACRIMAL DUCT . (thefreedictionary.com)