Lachrymation

In the normal state of organs, tear production corresponds to shedding. If the mechanism of lacrimation is disturbed, or if excessive tearing is observed during normal shedding, then in both cases a tear will roll over the edge of the lower eyelid - the so-called lachrymation.

From 2-4% of all eye patients are patients with lacrimation as a result of disturbed tearing.

Lachrymation can be due to congenital and acquired causes:

[1], [2], [3]

Lachrymation due to congenital anomalies

• atresia (absence) of lacrimal points in the normal tubules of the lacrimal gland;
• atresia (absence) of tubules in the presence of normal lacrimal points;
• absence of points and tubules;
• anomalies of the location of lacrimal points, their dislocation.

Lachrymation of acquired character

• reversal of the lacrimal point due to atony of the circular muscle of the eyelid;
• narrowing of the lacrimal point of a spastic character as a result of chronic inflammation of the conjunctiva and the edge of the eyelid or occlusion by foreign bodies, for example, eyelashes;
• stricture of tubules due to trauma or inflammation;
• suppurative cannabis;
• stenosis of the tear duct.

Excess tears can cause tearfulness or profuse lacrimation.

Residency (excessive tear production)

• reflex hyperproduction of tear fluid due to inflammation or surface damage. In this case, teardrop is associated with the symptoms of the underlying disease and its causes. Treatment, as a rule, is therapeutic.

Lachrymation as a result of disturbed sludge drainage increases with exposure to cold and windy weather and decreases if the person is warm, dry room.

• changes in the location of the lacrimal point (eg, ectropion);
• blockage during the drainage system from the lacrimal point to the nasal canal;
• a violation of the mechanism that creates a negative pressure in the tubules, which can occur due to the sagging of the lower eyelid or weakness of the orbicular muscle (for example, in paralysis of the facial nerve)