Pathologies of the lacrimal system
specialists
equipment
treatment
- fluorescein tests
- probing and washing the lacrimal ducts
- contrast dacryocystorhinostomy
General information about the treatment of pathologies of the lacrimal drainage system
Stenosis of the lacrimal punctum. Treatment of lacrimal punctal stenosis
Stenosis of the lacrimal punctum occurs in the absence of its eversion due to:
- chronic blepharitis;
- herpetic lesions of the eyelids;
- cicatricial conjunctivitis or trachoma;
- spread of malignant tumors.
During the treatment process, as a rule, the following is carried out:
- expansion of the lacrimal punctum with a dilator probe;
- surgical operation - plastic surgery of lacrimal openings.
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About the disease
The lacrimal ducts begin with the excretory ducts of the lacrimal gland and the glands of the conjunctiva. The tear fluid secreted by the lacrimal glands washes the anterior part of the eyeball, then flows along the lacrimal stream located along the inner edge of the eyelids to the inner corner of the eye, where the lacrimal puncta are located on the inner parts of the edges of the eyelids. Further, through the upper and lower lacrimal canaliculi, it penetrates the lacrimal sac and ends its path in the nasal cavity, where the nasolacrimal duct opens under the inferior nasal concha.
Impaired patency of the lacrimal ducts leads to impaired tear drainage and the occurrence of lacrimation, which can increase under the influence of cold and windy weather and decrease in a warm, dry room.
The causes of impaired lacrimal drainage may be: