Red-eye is usually caused by many different cases, including the following, the virus is divided into three majors:
A bacterial infection is an infection that is mostly caused by staphylococcal or streptococcal bacteria from your skin or respiratory system. Insects, physical contact with other people, poor hygiene (touching the eyes with unclean hands), or the use of eye cosmetics and lotions can also cause infections. Sharing makeup and wearing contact lenses that are not your own or improperly cleaned can also cause bacterial infections, which can cause both eyes to start to feel rough on one eye. In the eyes, itching or burning sensation in one or both eyes, swollen eyelids, increased sensitivity to light, white or yellow discharge.
Treatment: Treat with antibiotics (eye drops, ointments or tablets), eye drops, or ointments. Taking the second type of medicine, the newborn we took a pill instead for 7 days.
There are often secret transmission networks associated with common pandemics. It can develop through the effects of coughing or sneezing in people with upper respiratory tract infections, which can cause inflammation of the mucous membranes that irritate your body through the nasal passages. Tear ducts and meningitis. Tears run down the nose, nasal congestion, voluntarily compromised, can pass your breath of life to your eyes. This type of disease occurs in autumn and autumn and develops rapidly in the wind.
Treatment: There is no cure, but you can use the cold method for 14 days.
Divided into two parts
Allergic conjunctivitis: is more common in people with seasonal allergies or is caused by cosmetics, perfumes, proteins in contact lenses due to certain medications. They develop when they come in contact with allergens. Allergies in their eyes. Can occur in both eyes, causing itching, redness, tears, swelling of the eyelids (depending on the symptoms of other patients).
Treatment: Treatment with Antihistamine and cold compress until become better.
Giant papillary conjunctivitis (GPC): A type of allergic inflammation caused by the chronic presence of a foreign body in the eye. Papillary conjunctivitis (GPC) infection is when the inside of your eyelids becomes red, swollen, and inflamed. Without GPC, the inside of your eyelids is very smooth. It usually affects both eyes and prevents itching, heavy eyes, watery eyes, and redness under the eyelids.
Treatment: Treatment with Antihistamine for 10 days.
If there is redness, check for tears or pus or fluid. 
      Pus or fluid may be a sign of conjunctivitis ("pink eye" or "red-eye"), a bacterial infection, especially if the eye is very red.
      Tears with slight redness and itching at the base of the eyes near the nose, usually an allergy.
      Tears with a slight redness after a cold can be caused by a virus. Such does not require special treatment and medication cannot help.
      Tears with redness and fever, cough, and runny nose may be signs of measles, even before the rash appears.
    
Prevention from spreading from person to person. Wash often and after touching other people's eyes or your own eyes. Children with conjunctivitis should not share towels or bedding with others. Keep the child separate from other children until his eyesight improves.