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Lacrimal Anatomy

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1. Endoscopic anatomy of the lacrimal sac for dacryocystorhinostomy: A cadaveric study (PubMed)

Endoscopic anatomy of the lacrimal sac for dacryocystorhinostomy: A cadaveric study To assist the endoscopic localization of the lacrimal sac (LS)  relative to nearby landmarks. Methods: This is a descriptive prospective anatomical study. Sixteen lateral nasal walls were dissected endoscopically to identify and localize the LS between October and November 2015. Multiple measurements were obtained from the NS to the anterior and posterior walls of the LS, as well as to the middle turbinate (...) axilla (MTA) and from the MTA to the LS borders. Results: The average distance from the NS to the anterior border of the LS was 42.0 mm and the posterior border was 48.5 mm. The average widths of the LS were 7.55 mm superiorly, and 6.6 mm inferiorly representing a mathematical proof that the LS is a trapezoid shape. The mean distance from the NS to the MTA was 47.3 mm. Nine of the 16 lacrimal sacs (56.3%) were found to be partially overlapped by the MTA. The LS was only totally overlapped and lying

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2017 Saudi medical journal

2. Lacrimal Anatomy

Lacrimal Anatomy Lacrimal Anatomy Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Lacrimal Anatomy Lacrimal Anatomy Aka: Lacrimal (...) Anatomy , Lacrimal System II. Anatomy: Images Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Images: Related links to external sites (from Bing) These images are a random sampling from a Bing search on the term "Lacrimal Anatomy." Click on the image (or right click) to open the source website in a new browser window. Related Studies (from Trip Database) Ontology: Lacrimal Apparatus (C0022903) Definition

2018 FP Notebook

3. Functional anatomy of the lacrimal gland in African black ostrich Struthio camelus domesticus in the embryonic and postnatal period (PubMed)

Functional anatomy of the lacrimal gland in African black ostrich Struthio camelus domesticus in the embryonic and postnatal period The aim of the present study was morphological and histochemical analysis of the lacrimalgland (LG) in African black ostrich Struthio camelus domesticus in the embryonic and postnatalperiod. Studies were conducted on 50 ostriches aged between the 28th day of incubation until7 months old. Tissue sections were stained with haematoxylin and eosin, Azan trichrome

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2015 The Onderstepoort journal of veterinary research

4. A Feasibility Study to Develop a Protocol for Functional Lacrimal Magnetic Resonance Imaging

investigation Normal eyelid and punctal anatomy Controls No epiphora Normal lacrimal syringing in clinic. Exclusion criteria Age under 18 Renal function <30mL/min/1.73m2 Contra-indications to MRI e.g. electronic or metal implants, severe claustrophobia Known adverse reactions to contrast agents Pregnancy Exclusion Criteria: Contacts and Locations Go to No Contacts or Locations Provided More Information Go to Layout table for additonal information Responsible Party: Brighton and Sussex University Hospitals (...) A Feasibility Study to Develop a Protocol for Functional Lacrimal Magnetic Resonance Imaging A Feasibility Study to Develop a Protocol for Functional Lacrimal Magnetic Resonance Imaging - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more

2018 Clinical Trials

5. Sinopsys Lacrimal Stent Study for Patients With Chronic Sinusitis or CRS

Sinopsys Lacrimal Stent Study for Patients With Chronic Sinusitis or CRS Sinopsys Lacrimal Stent Study for Patients With Chronic Sinusitis or CRS - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. Sinopsys (...) Lacrimal Stent Study for Patients With Chronic Sinusitis or CRS (CRS) The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT03066908 Recruitment Status : Suspended (Change in study design) First Posted : March 1, 2017 Last Update Posted : November 9, 2018 Sponsor: Sinopsys Surgical Information provided

2017 Clinical Trials

6. Sinopsys® Lacrimal Stent Indicated for Sinus Irrigation

Sinopsys® Lacrimal Stent Indicated for Sinus Irrigation Sinopsys® Lacrimal Stent Indicated for Sinus Irrigation - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. Sinopsys® Lacrimal Stent Indicated for Sinus (...) Summary: The primary objective is to evaluate clinical data related to the safety and performance of the Sinopsys® Lacrimal Stent. Condition or disease Intervention/treatment Phase Ethmoid Sinusitis Device: Sinopsys® Lacrimal Stent Not Applicable Detailed Description: The primary objective of this study is to evaluate the safety and performance of the Sinopsys® Lacrimal Stent in the treatment of patients with moderate to severe chronic chronic rhinosinusitis via direct ethmoid sinus saline irrigation

2017 Clinical Trials

7. ANATOMY, PHYSIOLOGY AND PATHOLOGY OF THE LACRIMAL APPARATUS, MORE ESPECIALLY THE LACRIMAL SAC AND DUCT (PubMed)

ANATOMY, PHYSIOLOGY AND PATHOLOGY OF THE LACRIMAL APPARATUS, MORE ESPECIALLY THE LACRIMAL SAC AND DUCT 20317604 2010 06 24 2010 06 24 0008-4409 21 6 1929 Dec Canadian Medical Association journal Can Med Assoc J ANATOMY, PHYSIOLOGY AND PATHOLOGY OF THE LACRIMAL APPARATUS, MORE ESPECIALLY THE LACRIMAL SAC AND DUCT. 667-9 Würdemann H V HV Seattle, Wash. eng Journal Article Canada Can Med Assoc J 0414110 0008-4409 2010 3 24 6 0 1929 12 1 0 0 1929 12 1 0 1 ppublish 20317604 PMC381552

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1929 Canadian Medical Association Journal

8. Lacrimal Sac Mucoepidermoid Carcinoma with Metastases to the Cavernous Sinus Following Dacryocystorhinostomy Treated with Stereotactic Radiotherapy (PubMed)

Lacrimal Sac Mucoepidermoid Carcinoma with Metastases to the Cavernous Sinus Following Dacryocystorhinostomy Treated with Stereotactic Radiotherapy We report a very good outcome in a 44-year-old woman in whom cancer was missed as the cause of nasolacrimal duct obstruction and dacryocystitis and which was deemed inoperable after spreading to the cavernous sinus.The patient was referred to our unit 12 months following uneventful right dacryocystorhinostomy for nasolacrimal duct obstruction (...) of dacryocystorhinostomy. Whilst the external approach to dacryocystorhinostomy may identify abnormal anatomy intraoperatively, prompting biopsy, this is less likely with an endonasal approach where osteotomy precedes sac visualisation. The endonasal approach may therefore be less appropriate in such cases where malignancy is suspected as osteotomy may aid in the spread.

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2016 Case reports in ophthalmology

9. Lacrimal Bone

Lacrimal Bone Lacrimal Bone Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Lacrimal Bone Lacrimal Bone Aka: Lacrimal Bone II. Anatomy (...) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Images: Related links to external sites (from Bing) These images are a random sampling from a Bing search on the term "Lacrimal Bone." Click on the image (or right click) to open the source website in a new browser window. Related Studies (from Trip Database) Ontology: Lacrimal bone structure (C0222733) Definition (NCI_CDISC) A small rectangular thin plate forming part of the medial orbit wall. It is located posterior to the frontal process

2018 FP Notebook

10. Interactive navigation-guided ophthalmic plastic surgery: navigation enabling of telescopes and their use in endoscopic lacrimal surgeries (PubMed)

localization of the lacrimal sac and the nasolacrimal duct could be easily deciphered. Constant orientation of the lacrimal drainage system and the peri-lacrimal anatomy was possible without the need for repeated point localizations throughout the surgery. The "look ahead" features could accurately alert the surgeon of anatomical structures that exists at 5, 10 and 15 mm in front of the endoscope. Good securing of the shunt stylet with the telescope was found to be essential for constant and accurate (...) Interactive navigation-guided ophthalmic plastic surgery: navigation enabling of telescopes and their use in endoscopic lacrimal surgeries The aims of this study were to report the preliminary experience of using telescopes, which were enabled for navigation guidance, and their utility in complex endoscopic lacrimal surgeries.Navigation enabling of the telescope was achieved by using the AxiEM™ malleable neuronavigation shunt stylet. Image-guided dacryolocalization was performed in five

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2016 Clinical ophthalmology (Auckland, N.Z.)

11. Interactive navigation-guided ophthalmic plastic surgery: the utility of 3D CT-DCG-guided dacryolocalization in secondary acquired lacrimal duct obstructions (PubMed)

guidance and the ability to localize the lacrimal drainage system in the altered endoscopic anatomical milieu were noted.Intraoperative geometric localization of the lacrimal sac and the nasolacrimal duct could be easily achieved. Constant orientation of the lacrimal drainage system was possible while navigating in the vicinity of altered endoscopic perilacrimal anatomy. Useful clues with regard to modifications while performing a powered endoscopic DCR could be obtained. Surgeries could be performed (...) Interactive navigation-guided ophthalmic plastic surgery: the utility of 3D CT-DCG-guided dacryolocalization in secondary acquired lacrimal duct obstructions The aim of this study was to report the preliminary experience with the techniques and utility of navigation-guided, 3D, computed tomography-dacryocystography (CT-DCG) in the management of secondary acquired lacrimal drainage obstructions.Stereotactic surgeries using CT-DCG as the intraoperative image-guiding tool were performed in 3

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2016 Clinical ophthalmology (Auckland, N.Z.)

12. Entire lacrimal sac within the ethmoid sinus: outcomes of powered endoscopic dacryocystorhinostomy (PubMed)

Entire lacrimal sac within the ethmoid sinus: outcomes of powered endoscopic dacryocystorhinostomy The aim of this study was to report the outcomes of powered endoscopic dacryocystorhinostomy (PEnDCR) in patients with lacrimal sac within the sinus.Retrospective analysis was performed on all patients who underwent PEnDCR and were intraoperatively documented to have complete lacrimal sac in sinus. Data collected included demographics, clinical presentations, associated lacrimal and nasal (...) ) showed left-side predisposition; 80% of patients showed regurgitation on pressure over the lacrimal sac area. Associated lacrimal and nasal anomalies were observed in 13.3% (two of 15) and 40% (six of 15), respectively. At a mean follow-up of 6.6 months, anatomical and functional success were observed in 93.3% (14 of 15). One patient showed failure secondary to cicatricial closure of the ostium.An entire sac within an ethmoid sinus poses a surgical challenge. Good sinus-surgery training, thorough

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2016 Clinical ophthalmology (Auckland, N.Z.)

13. The Sinopsys Lacrimal Stent for Lacrimal System Repair in Epiphora

The Sinopsys Lacrimal Stent for Lacrimal System Repair in Epiphora The Sinopsys Lacrimal Stent for Lacrimal System Repair in Epiphora - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. The Sinopsys Lacrimal (...) Stent for Lacrimal System Repair in Epiphora The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT02240615 Recruitment Status : Completed First Posted : September 15, 2014 Last Update Posted : February 12, 2016 Sponsor: Sinopsys Surgical Information provided by (Responsible Party): Sinopsys Surgical Study

2014 Clinical Trials

14. Lacrimal Anatomy

Lacrimal Anatomy Lacrimal Anatomy Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Lacrimal Anatomy Lacrimal Anatomy Aka: Lacrimal (...) Anatomy , Lacrimal System II. Anatomy: Images Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Images: Related links to external sites (from Bing) These images are a random sampling from a Bing search on the term "Lacrimal Anatomy." Click on the image (or right click) to open the source website in a new browser window. Related Studies (from Trip Database) Ontology: Lacrimal Apparatus (C0022903) Definition

2015 FP Notebook

15. Eye Anatomy

, Iris , Conjunctiva , Aqueous Humor , Aqueous Outflow Angle II. Images Globe Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Iris Lewis (1918) Gray's Anatomy 20th ed (in at or ) Nerves See Extraocular Motor See See See Vessels See See Lacrimal and lids See Lids See III. Anatomy: General s Both lids contain a tarsal plate with Meibomian glands Lids join (...) Eye Anatomy Eye Anatomy Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Eye Anatomy Eye Anatomy Aka: Eye Anatomy , Limbus Corneae

2018 FP Notebook

16. Lid Anatomy

Components Skin Eyelashes Lacrimal glands (tear glands) s (Meibomian glands) s (Glands of Zeis) Compartment Orbital septum traverses from the skull periosteum through the Eyelid Eyelid lies in preseptal region, anterior to the orbital septum Orbit and eye lie posterior to the orbital septum Images Lewis (1918) Gray's Anatomy 20th ed (in at or ) Lewis (1918) Gray's Anatomy 20th ed (in at or ) Images: Related links to external sites (from Bing) These images are a random sampling from a Bing search (...) Lid Anatomy Lid Anatomy Toggle navigation Brain Head & Neck Chest Endocrine Abdomen Musculoskeletal Skin Infectious Disease Hematology & Oncology Cohorts Diagnostics Emergency Findings Procedures Prevention & Management Pharmacy Resuscitation Trauma Emergency Procedures Ultrasound Cardiovascular Emergencies Lung Emergencies Infectious Disease Pediatrics Neurologic Emergencies Skin Exposure Miscellaneous Abuse Cancer Administration 4 Lid Anatomy Lid Anatomy Aka: Lid Anatomy , Eyelid II. Anatomy

2018 FP Notebook

17. A Comparative Study of Two Endoscopic Operations for Lacrimal Duct Obstruction

A Comparative Study of Two Endoscopic Operations for Lacrimal Duct Obstruction A Comparative Study of Two Endoscopic Operations for Lacrimal Duct Obstruction - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more (...) . A Comparative Study of Two Endoscopic Operations for Lacrimal Duct Obstruction (ACSOTEOFLDO) The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our for details. ClinicalTrials.gov Identifier: NCT02636257 Recruitment Status : Completed First Posted : December 21, 2015 Last Update Posted : October 11, 2017 Sponsor: Third Affiliated Hospital, Sun Yat-Sen

2015 Clinical Trials

18. Anatomical landmarks of the lateral nasal wall: implications for endonasal lacrimal surgery. (PubMed)

Anatomical landmarks of the lateral nasal wall: implications for endonasal lacrimal surgery. An accurate understanding of the anatomy of the lateral nasal wall is key to achieving complete exposure of the lacrimal sac during endonasal dacryocystorhinostomy (EnDCR) and the avoidance of complications such as basal skull fracture and orbital fat prolapse. This review provides a comprehensive summary of the clinical and cadaveric anatomical studies of the lateral nasal wall to date (...) process. A greater understanding of the relevant endonasal anatomy over time has led to safer and more effective surgical techniques.Greater insights into the precise anatomical relationship of the lacrimal sac to other structures on the lateral nasal wall has enabled lacrimal surgeons to perform EnDCR surgery in a more accurate, efficient and well tolerated manner, matching its success to that of the external approach.

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2015 Current Opinion in Ophthalmology

19. Sinopsys Lacrimal Stent Indicated for Sinus Irrigation

Sinopsys Lacrimal Stent Indicated for Sinus Irrigation Sinopsys Lacrimal Stent Indicated for Sinus Irrigation - Full Text View - ClinicalTrials.gov Hide glossary Glossary Study record managers: refer to the if submitting registration or results information. Search for terms x × Study Record Detail Saved Studies Save this study Warning You have reached the maximum number of saved studies (100). Please remove one or more studies before adding more. Sinopsys Lacrimal Stent Indicated for Sinus (...) to Brief Summary: The purpose of this study is to collect preliminary clinical data related to the safety and performance of the Sinopsys Lacrimal Stent. Condition or disease Intervention/treatment Phase Ethmoid Sinusitis Device: Sinopsys Lacrimal Stent Early Phase 1 Detailed Description: For purposes of this clinical study, the Sinopsys Lacrimal Stent is intended to provide a means of administering saline sinus irrigation via a transcaruncular-ethmoid sinus access in patients with moderate to severe

2014 Clinical Trials

20. Consecutive microscopic anatomical characteristics of the lacrimal sac and nasolacrimal duct: cases with or without inflammation. (PubMed)

Consecutive microscopic anatomical characteristics of the lacrimal sac and nasolacrimal duct: cases with or without inflammation. We examined the consecutive microscopic anatomy of the lacrimal sac and nasolacrimal duct with or without conspicuous inflammation.We used 18 postmortem lacrimal sacs and nasolacrimal ducts of 12 Japanese subjects (5 males, 7 females, aged 75-98 years at death). The removed mucosal wall was transversely sectioned. 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. All specimens were dehydrated and embedded in paraffin, cut into 7-μm thick sections, and stained with Masson's trichrome.The lumen was larger in the lacrimal sac than in the nasolacrimal duct. The lacrimal sac wall was less developed than the nasolacrimal duct wall. All specimens but two showed a narrowed area in the nasolacrimal duct. Specimens

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2014 Investigative Ophthalmology & Visual Science

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