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Lachrymation

 
, medical expert
Last reviewed: 23.04.2024
 
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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:

trusted-source[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)

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