Causes of Conjunctivitis in Adults
The causes of conjunctivitis vary, depending on the type. This will be explained below.
Allergic conjunctivitis results from an allergic reaction to the eye after contact with an allergen. Allergic conjunctivitis is still subdivided into three types, including:
- Contact dermatoconjunctivitis. This type of allergic conjunctivitis is commonly caused by eye drops. In addition, the use of facial makeup and exposure to chemicals can also lead to the occurrence of this condition.
- Giant papillary conjunctivitis. The causes of giant papillary conjunctivitis are contact lenses, artificial eye or prosthesis placed during eye surgery, as well as stitches used in eye surgery. It is estimated that about one percent of people who use hard contact lenses and three percent of users of soft contact lenses are exposed to giant papillary conjunctivitis.
- Chronic allergic conjunctivitis. People who have other allergies, such as asthma and allergic rhinitis, are more likely to suffer from this type of conjunctivitis. Chronic allergic conjunctivitis is usually caused by dust mites, dead animal stripping, and pollen from trees, flowers or grasses.
The causes of irritated conjunctivitis are very diverse, among which are:
- Smoke or steam
- Eyelashes that swerve and conjunctiva swipe
- Swim in a pool of chlorine-containing water
Infective conjunctivitis results from an eye infection triggered by:
- Virus. Adenovirus is one of the most common viruses causing conjunctivitis. In addition, this virus can also cause symptoms of fever and sore throat.
- Sexually transmitted diseases (eg gonorrhea or chlamydia).
- Bacteria. Groups of bacteria that often cause ear infections and stomach, can also cause conjunctivitis
Infective conjunctivitis can transmit eye infections in people adjacent to it. The spread can occur through direct or indirect contact of infected eye secretions. Therefore, it is advisable to wash your hands thoroughly after touching the patient, and do not share towels or pillows with them.
There are several factors that can increase a person’s infective conjunctivitis, including:
- Having diabetes or other diseases that make the immune system weak.
- Being in a crowded and crowded place (eg in a train or bus).
- Age. Children are very susceptible to this disease because they often interact with their friends at school. In addition, the elderly are also vulnerable because the immune system is weakened with age.
- Suffer from blepharitis or inflammation of the eyelid side caused by bacteria.
- Have a history of respiratory tract infection.
- Eating drugs that weaken the immune system, such as corticosteroids or often referred to as steroids.
- Use of contact lenses