General information

Common eye diseases in chickens


Many diseases of chickens are accompanied by ophthalmological ailments. Swelling and swelling of the eyelids, discharge from the eyes are often found. But the danger is that such manifestations can only be part of the symptom complex of another, often fatal, illness.

In such cases, it is best to seek help from a veterinarian. In the clinic, chickens are examined, the pathogen is determined, and adequate treatment is prescribed.

Causes of ophthalmic problems in chickens

There are quite a few diseases in which birds can experience swelling of the eyes, discharge, drooping of the eyelid. In most cases, pay attention to the associated symptoms:

  • eyes fester - conjunctivitis, salmonellosis, panophthalmitis, bruises, injuries, chicken fever, sinusitis, chlamydia,
  • eyes swelled and closed - cystosis, keratoconjunctivitis, xerophthalmia, trauma,
  • the chicken goes blind in one eye - salmonellosis, Marek's disease,
  • eye swelling and nasal discharge - hemophilia (infectious rhinitis),
  • wheezing and puffiness of the eyes - laryngotracheitis, mycoplasmosis, Newcastle disease,
  • chickens wheezing, limping - salmonellosis, Marek's disease, pasteurellosis,
  • chickens have one eye closed, chill breathing - mycoplasmosis, infectious laryngotracheitis, rhinitis,
  • swollen eyes - trichomoniasis of the eye, salmonella, sinusitis, laryngotracheitis, ornithosis.
As a rule, both eyes are not affected at the same time, this happens alternately. Wait for the final moment is not worth it, you need to immediately begin treatment.


So called inflammation of the mucous membrane, which covers the inner part of the eyelid and the eyeball to the cornea. The cause may be an eye injury, vitamin deficiency, an allergy or infection.

Characteristic features include:

  • hyperemia and swelling of the eyelid,
  • fear of sunlight
  • complete or partial closure of the palpebral fissure,
  • discharge, including purulent,
  • clumping of the eyelids.

Sometimes conjunctivitis develops into panophthalmitis. And also the disease develops on its own due to infection. The condition is aggravated, and the following symptoms develop:

  • clouding of the iris and the appearance of a blue tint
  • clouding and destruction of the cornea,
  • bleeding from the palpebral fissure.

Sick birds are isolated from the rest, eliminate the causes of the disease. Coop warmed, eliminate drafts. When vitamin deficiency review diet. If the disease is triggered by a foreign object, then it is carefully removed from the eye.

Due to the insensitivity of the bright light, the first few days keep the inflamed eye closed.

For washing use to choose:

  • boric acid solution
  • furatsilina solution.

Under the lower eyelid lay tetracycline ointment.

Levomycetin solution is given in 1 drop to the affected eye in the morning and in the evening for 7 days. Add to the water, Gamavit, multivitamins. Food is enriched with sulfur and bone meal, add grated carrots and lettuce leaves.


The disease is caused by a lack of retinol (vitamin A) in the body.

  • dry or flaky cornea,
  • insufficiency of the lacrimal glands,
  • eye swelling.

Vitamin A rich foods or vitamin supplements are added to the diet.

Symptoms are often absent. An indirect sign is a decrease in the fertility of eggs, the output of chickens. Conjunctivitis appears with inflammation of the entire eyeball. In chickens:

  • indigestion,
  • respiratory problems
  • disorders of the nervous system.

A sick bird is culled from the herd and slaughtered. The rest of the birds should be treated with tetracycline (40 mg / kg body weight per day for 10–14 days).

Disinfection and thorough mechanical cleaning of the house is necessary.

Sinusitis (flu)

The infection is badly tolerated by chickens. Symptoms are easily confused with other infections - ornithosis, laryngotracheitis. These include:

  • sore throat hoarse
  • nasal discharge
  • swelling of the sinuses.

Sinusitis with E. coli leads to a loss of up to 70% of the herd.

As part of therapy, terramycin is used - in the form of an aerosol or as an additive in feed (20–40 mg / kg of body weight) for 4–8 days.


In young birds, the flow is acute, in adults it is chronic. Typical symptoms:

  • temperature increase up to 43 ° С
  • oppression,
  • lack of appetite,
  • diarrhea,
  • feces grayish-yellow, with gas bubbles and a putrid odor,
  • increased goiter,
  • labored breathing,
  • discharge from the eyes and nose,
  • exhaustion.

The death of young stock reaches 90%, adult herd - 75%.

For treatment, they use imidazole preparations tinidazole, nitazole - 75–100 mg / kg in mixed feed for 4–7 days,

The causative agent of hemophilisis multiplies rapidly in the upper respiratory tract, on the mucous membranes, the infection spreads like lightning in the herd.


  • rubbing your head against the ground or wing, shaking your head,
  • swelling of the head,
  • sneezing, nasal discharge,
  • breathing through the mouth with an open beak,
  • decrease in egg production by 10–30%.

For treatment using a combination therapy (course of 4–5 days):

  • sulfadimezin (0.15–0.3 mg / kg mass),
  • terramycin (5–6 mg / kg mass, into water),
  • Tylosin (100 g / t feed),
  • Furazolidone (0.04–0.06% of the daily diet),
  • chlortetracycline (20–40 mg / kg body weight, in feed).

Newcastle disease (pseudotum)

The disease is characterized by an acute course, is caused by an RNA-containing virus and leads to a massive loss of birds.

  • conjunctivitis,
  • wheezing
  • breathing through the beak,
  • reduced mobility
  • "Croak"
  • there is depression, lethargy,
  • appetite decreases and disappears
  • the cornea becomes cloudy,
  • mucus in the mouth and nose accumulates
  • possible - increased excitability, trembling of the head, paralysis of the limbs, neck.

There are no drugs against the infection, the livestock is being destroyed.

Mycoplasmosis (Gamboro disease)

The disease affects the respiratory system and is usually combined with viral and bacterial infections. Broiler breeds are more susceptible.

Chicks have symptoms:

  • dyspnea,
  • wheezing
  • poor appetite
  • slowdown in growth.

In adult chickens, there is a decrease in egg production by up to 15%, death of embryos, an increase in "neoplot", sometimes the cornea of ​​the eye and the oviduct are inflamed. If an illness is suspected, they are treated (5 days) with such drugs:

  • Pharmatsin - 1g / l of water,
  • Tylan - 3 ml / l of water,
  • Enroksil - 1 ml / l of water.

Solutions are given instead of drinking.

If there are doubts about the diagnosis, take a wide spectrum of drugs - for example, Tillodox (1 ml / l of water) or Macrodox 200 (1g / l of water).


The disease spreads rather quickly, and can hit up to 60% of the herd, of which 20% die. The disease may acquire a chronic course.

  • whistles when breathing, wheezing,
  • nasal discharge
  • cough, especially if you squeeze the trachea with your fingers,
  • redness, puffiness, point hemorrhages on the surface of the laryngeal walls, an abundance of curd or mucous masses,
  • cyanosis of the comb,
  • oppression,
  • eye inflammation, frothy or mucous discharge, covering the third eyelid of the eyeball, corneal damage and subsequent blindness.

Treatment is inappropriate. After slaughter the room is disinfected. Sometimes only the sick chicken is killed, and the rest of the herd is subjected to therapy.

The main activities are enhanced vitamin feeding, room ventilation and heating. From medicines use:

  • broad spectrum antibiotics, for example, Norfloxacin (once a day for 3–5 days, 50–100 g per 100 l of water),
  • Gentamicin spray solution
  • disinfection of the house with lactic acid or triethylene glycol,
  • vitamins RexVital, Nitamin and others,
  • ASD-2 in a wet mash (1 ml per 100 heads).


Infection is also dangerous for humans when eating meat and eggs.


  • conjunctivitis,
  • wheezing
  • lameness, which manifests itself a little later.

The course of treatment of salmonellosis involves the use of antibacterial drugs. Sulfonamides are effective at a daily dose of 1 g of the drug per 3 liters of drinking water for 4–6 days. In severe cases, the veterinarian increases the first portion up to 50%, and the course extends for 2-3 days.

Marek's disease

In the case of Marek's disease, treatment is not carried out. All sick and infected birds are culled and sent for slaughter.

  • lameness,
  • swelling of the iris with the death of the epithelium, adhesions between the lens capsule and the iris, the pupil is narrowed.

In the early stages at home enrich the diet with vitamins A and D.

The formation of a tumor will require the help of a surgeon. He will cut out the walls of the cysts, treat the wound sites with silver nitrate. At home, the eyes are treated with boric acid. Therapeutic course - 5 days.


This disease, which is also characterized by inflammation of the mucous membranes of the eye, and occurs, for example, after inhaling ammonia vapors.

The disease is determined by the following features:

  • corneal opacity,
  • at later stages - the formation of a thorn,
  • depression,
  • reduced mobility
  • lack of appetite.

After 2-3 days from the onset of the disease, the eyes stick together, the eyelids swell, sometimes there are pussy, frothy discharges.

In the early stages eliminate the cause - clean the house. Eyes and oral cavity washed with chamomile extract.


The disease occurs in an acute and chronic form, and it is provoked by the pasteurella bacterium. Particularly often affected are young animals aged 78–120 days.


  • heavy breathing, wheezing in the lungs,
  • lethargy, lameness,
  • oppression,
  • lack of appetite,
  • foam from mouth and nose,
  • discharge - gray, with blood.

Death usually occurs on the third day, with the chronic form - in a month.

Urgent isolation required. Therapy is prohibited, the bird must be destroyed. In the case of long-term treatment, the disease becomes chronic, which threatens to infect the rest of the herd.

Infectious bronchitis

The most striking signs are observed in chickens:

  • purulent conjunctivitis,
  • tight breathing
  • wheezing in the trachea,
  • nasal discharge, sinusitis, rhinitis,
  • cough,
  • loss of appetite,
  • inactivity
  • approximation to heat
  • lag in growth and development.

Susceptible young chickens, chickens at 5-6 months.

The house is disinfected with iodine monochloride with aluminum and the addition of an antibiotic. For the treatment, they use drugs based on titan (0.5 g / l of drinking water per day). Recommended antiviral Anfluron - 2 ml / l of water, 2-3 days.

What is dropsy in chickens and is it treatable. All the detailed information we have set out in this article.

Compound feed for chickens can be made independently of quality components. Detailed recipes are here.


Avoiding poultry diseases, including eye diseases, is much easier and cheaper than treatment. Enough to listen to simple tips:

  1. Keep clean and warm coop.
  2. Periodically wash the eyes of chickens chamomile broth.
  3. Provide good nutrition and enough space for livelihoods.
  4. Sick birds are quarantined.

If the bird died for unknown reasons, it is better to deliver it to the laboratory, where experts will determine the cause of death. This will help take the right preventive measures so that the young do not become infected with the infection.

Eye infections in birds

Veterinarians strongly recommend not to buy drugs themselves. All drugs should be prescribed only by a specialist. If symptoms of any infection are found in birds, a specialist should be shown to a chicken. Eye infections are one of the most common causes of eye swelling in chickens. In the case of infections in birds, there is swelling of the eyes, increased lacrimation, purulent discharge. Depending on what kind of infection the bird affected, what kind of eye disease in chickens, the treatment and the medications used vary.

The most common infections are when the hens close their eyes: laryngotracheitis, salmonellosis and mycoplasmosis. If the chicken has edema, one eye is closed or the bird is scratching the area around the eyes, then these are possible signs of various viral infections. According to the behavior of the bird, it is also possible to draw a conclusion about unhealthy behavior. If a bird sits puffy in chickens, stifling, inactive, and refusing to eat, then this is a reason for further observation. Look into the pupils, if they are cloudy, swollen or swollen, then the problem is most likely in eye infections.

Various tumors

The causes of the appearance of eye tumors in chickens have not yet been precisely studied. For the most part, they look more like a bump than edema. Their appearance is accompanied by inflammation, then they swell. If you see that the bird's eyes are red and swollen, but there are no other symptoms in the patient, the infection can be immediately removed from the list of possible diseases. The same can be said about the inflammatory processes, accompanied by lacrimation and purulent discharge.

If the eyes are inflamed in chicken or adult broilers, the treatment will be slightly different. Small individuals are still too weak to fight disease. Unfortunately, at the moment there are no drugs that would help get rid of the tumor. If the bird eats well, then it is necessary to emphasize in the treatment of the preparation of its diet. Add to it more of her favorite delicacies, as well as fortified supplements. Treatment is only to remove the tumor surgically, which must be trusted by qualified, proven professionals.