If tears flow from only one eye for a long time, of course, this is a pathological symptom. Do not hope that such a painful phenomenon will pass by itself. Prolonged lacrimation is an unreasonable load on the eye apparatus, it can lead to serious complications. Without wasting time, hurry to the ophthalmologist, who will identify the reason for this "cry".
Easily diagnosed causes
The simplest case is if an eyelash or speck has got into the eye that you cannot see or cannot extract. The doctor will quickly do this, and the unpleasant problem will disappear.
Worse if the eye is infected. Then conjunctivitis develops, in which not only tears run in a stream, but also the eyelids swell, the whites of the eyes turn red, and it hurts to look at a bright light. In addition, in the morning the eyelashes “stick together” with pus that has dried up overnight.
Severe lacrimation occurs with flu, sinusitis, rhinitis. In infants, tears may flow from one eye when an “eye” tooth erupts in the upper jaw. Chronic crying, alas, is a sad lot of many allergy sufferers. The eye may watery due to the excessive sensitivity of the cornea to cold, wind, and bright light.
Lachrymation can happen to those who have worn contact lenses for many years, but do not take very good care of them. And even with those who have suffered strong emotional experiences, depression. In elderly people, both or one eye often watery due to age-related drooping of the upper eyelid or partial inversion of the lower eyelid.
But more often the causes of lacrimation are associated with physiological disorders in the eye apparatus. There may be one of two options: either the lacrimal gland secretes too much moisture and the channels do not have time to drain it, or the mechanism for removing fluid from the orbit is broken.
In the first option, many tears are produced due to inflammation of the cornea or conjunctivitis, as well as due to a burn or injury to the eye. In the second option, the reason may be hidden: 1) in clogging, narrowing and even obstruction of the lacrimal canal; 2) in inflammation of the lacrimal sac; 3) in partial eversion of the eyelid.
With stagnation of fluid, the lacrimal sac becomes infected, and its inflammation develops, more often purulent - dacryocystitis. It usually occurs in two to three month old newborns and in the elderly. If the inflammation captures the cornea, an ulcer may form, which subsequently turns into a thorn.
Another possible complication of chronic dacryocystitis is lacrimal sac phlegmon. The skin in his area turns red, swells, becomes painful due to the accumulation of pus. It exits through the fistula, which is formed when the phlegmon is opened.
Another problem that dacryocystitis can cause is corneal inflammation or keratitis. It can also develop after conjunctivitis, mechanical trauma, as well as with complicated viral infections, tuberculosis, brucellosis, malaria, syphilis, and some neurological diseases. Dacryocystitis and its complications are treated mainly surgically.
Sometimes it makes the eye cry lagophthalmos - non-closing of the upper and lower eyelids. Such a defect is extremely rare in congenital, usually it occurs after facial injuries with scars on the skin of the eyelids, neuroinfections, and paralysis of the facial nerve.
Finally, tearing in one eye can be caused by damage to the blood vessels. They often occur in diseases of the sclera and cornea, hypertension, diabetes, trauma, after ophthalmic surgery. The final diagnosis is helped by radiography or computed tomography, which exclude or confirm the presence of abnormalities in the eye apparatus.