Conjunctivitis

Conjunctivitis, commonly known as pink eye, is an inflammation or infection of the conjunctiva, the thin transparent membrane that covers the white part of the eye and the inside of the eyelids.

The conjunctiva helps protect the eye from external agents and contributes to lubrication. When it becomes inflamed, blood vessels become more visible, causing redness, irritation, tearing, and other common symptoms.

Although conjunctivitis is usually not serious, identifying the cause is essential for proper treatment and preventing complications or transmission.

What Causes Conjunctivitis?
The most common causes include:

Viral Conjunctivitis
This is the most common form of infectious conjunctivitis. It is highly contagious and can spread quickly in schools, workplaces, and households.

It may be associated with respiratory viruses, including certain cases linked to COVID-19, herpes simplex virus, and herpes zoster.

Bacterial Conjunctivitis
This type is caused by bacteria and often affects both eyes. It may produce more noticeable discharge and often requires antibiotic treatment.

Allergic Conjunctivitis
This occurs as a reaction to allergens such as:

• Pollen
  
• Dust
  
• Dust mites
  
• Pet dander

It usually affects both eyes and is commonly associated with intense itching.

Other Causes
Conjunctivitis may also result from:

• Smoke exposure
  
• Swimming pool chlorine
  
• Chemical irritants
  
• Foreign objects in the eye
  
• Blocked tear ducts in newborns

Symptoms of Conjunctivitis
Symptoms may vary depending on the cause but commonly include:

• Red eyes.
  
• Itching or burning sensation.
  
• Excessive tearing.
  
• Gritty sensation in the eyes.
  
• Swollen eyelids.
  
• Light sensitivity.
  
• Eye discharge that may cause eyelids to stick together upon waking.

If symptoms worsen or affect vision, prompt medical attention is recommended.

How Is Conjunctivitis Diagnosed?
In most cases, an Ophthalmologist can diagnose conjunctivitis through an eye examination and a review of symptoms and medical history.

When symptoms are severe or a more serious infection is suspected, laboratory testing of eye discharge may be recommended.

Treatment for Conjunctivitis
Treatment depends on the underlying cause.

Bacterial Conjunctivitis
Typically treated with antibiotic eye drops or ointments. Symptoms often improve within a few days.

Allergic Conjunctivitis
Treatment focuses on avoiding allergens and controlling inflammation with artificial tears, antihistamines, or other prescribed medications.

Viral Conjunctivitis
Most cases resolve on their own within one to two weeks. In certain infections, antiviral medications may be prescribed.

How Can Conjunctivitis Be Prevented?
Viral and bacterial conjunctivitis can spread easily.

To help prevent transmission:

• Wash your hands frequently.
  
• Avoid touching your eyes.
  
• Do not share towels, pillows, or tissues.
  
• Change pillowcases regularly.
  
• Avoid sharing makeup or contact lenses.
  
• Replace eye makeup used during the infection.
  
• Follow your Ophthalmologist's recommendations regarding contact lens use.

Can I Go to School or Work with Conjunctivitis?
This depends on the cause and severity of the infection.

For contagious cases, especially in children, staying home during the first few days may help prevent spreading the infection.

If attending school or work is necessary, strict hygiene measures should be followed.

When Should I See an Ophthalmologist?
Seek medical attention if you experience:

• Severe eye pain.
  
• Blurred or decreased vision.
  
• Significant light sensitivity.
  
• Persistent symptoms.
  
• Heavy eye discharge.
  
• Recurrent episodes of conjunctivitis.

Early diagnosis helps ensure appropriate treatment and recovery.

Schedule an Appointment with a Specialist

At BlueNet Hospitals, our Ophthalmology specialists provide expert diagnosis and treatment for conjunctivitis and other eye conditions.

If you are experiencing red eyes, irritation, discharge, or any vision-related symptoms, schedule a consultation with one of our specialists.

📲 Schedule your medical evaluation in Los Cabos:
+52 (624) 151 0693

Our team is committed to protecting your vision and eye health.

Frequently Asked Questions

1. Is conjunctivitis contagious?
Viral and bacterial conjunctivitis can be highly contagious.

2. How long does conjunctivitis last?
Depending on the cause, it may last from several days to two weeks.

3. Can I wear contact lenses with conjunctivitis?
No. Contact lens use should be avoided until approved by your doctor.

4. Does conjunctivitis go away on its own?
Some viral cases resolve without specific treatment.

5. When should I see an eye doctor?
If you experience pain, vision changes, or persistent symptoms.