One can think of this apparatus as having both functional and anatomical (structural) components. The first component is functional and consists of the lacrimal pump. During blinking, the contraction ...

To investigate and compare the efficacy of botulinum toxin-A injection in the lacrimal gland and conjunctivodacryocystorhinostomy surgery for the treatment of ...

Tear ducts are structures that drain tears from your eye and into your nose. They’re also known as nasolacrimal ducts. If these ducts become clogged, it’s called a blocked tear duct or nasolacrimal ...

Epiphora is one of the more common complaints in an ophthalmology practice. Defined as abnormal excessive tearing, epiphora can have a social impact, cause blur and be associated with infections, as ...

Background: From the 1990’s onward, it has been possible to assess changes in the lacrimal duct by direct, minimally invasive diagnostic inspection with the aid of miniaturized endoscopes originally ...

Patients taking a combination of topical antiglaucoma medications are at a significantly increased risk of developing lacrimal drainage system obstruction, a prospective study suggests. "Both total ...

Phosphatase and Tensin Homolog Deficiency and Resistance to Trastuzumab and Chemotherapy In the study by Chan et al, 13 nearly 20% of patients had asymptomatic partial lacrimal duct obstruction at ...

One can see that the problems associated with the upper lacrimal drainage system can be complex. We can begin to consider these problems by first establishing whether true epiphora exists. In many ...