The Safety and Efficacy of Lacrimal Silicone Intubation for the Management of Epiphora

2014-08-27 03:18:04 | BioPortfolio


The purpose of study is to investigate the safety and efficacy of lacrimal silicone intubation for the management of epiphora.


Epiphora is an overflow of tears,usually caused by insufficient drainage of the tear film from the eye.The most common cause is a blockage of the lacrimal ducts located next to the nose, but the condition may also result from the excessive production of tears. Epiphora is a symptom rather than a disease and may be caused by a variety of conditions.

30 subjects will be recruited for this study, informed consent will be taken from the willing subjects. Complete ophthalmic evaluation would be performed including visual acuity. Diagnosis would be made on history of epiphora, regurgitation test, lids examination, nasal examination, probing and syringing. Standard procedure of Dacryocystorhinostomy (DCR) would be adopted in all cases with lacrimal intubation.

Syringing will be done on first follow up visit and skin sutures will also be removed. Tightness and mobility of the silicone tube will be checked. The tube is kept in place for 3-6 months according to need and then finally removed. The patency of lacrimal passage will be investigated by irrigation. A successful outcome will be defined as resolution of symptoms like epiphora and discharge and a patent lacrimal system on irrigation.

Study Design

Control: Uncontrolled, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Single Group Assignment, Masking: Open Label, Primary Purpose: Treatment




Lacrimal Tube


Aravind Eye Hospital
Tamil Nadu
625 020





Results (where available)

View Results


Published on BioPortfolio: 2014-08-27T03:18:04-0400

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Medical and Biotech [MESH] Definitions

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)

Inflammation and infection of the lacrimal canaliculus area in the LACRIMAL APPARATUS.

A tube of ectodermal tissue in an embryo that will give rise to the CENTRAL NERVOUS SYSTEM, including the SPINAL CORD and the BRAIN. Lumen within the neural tube is called neural canal which gives rise to the central canal of the spinal cord and the ventricles of the brain. For malformation of the neural tube, see NEURAL TUBE DEFECTS.

The tear-forming and tear-conducting system which includes the lacrimal glands, eyelid margins, conjunctival sac, and the tear drainage system.

Diseases of the lacrimal apparatus.

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