9 FAQs About Conjunctivitis

Conjunctivitis, also known as pink eye, is a common eye condition that causes inflammation of the conjunctiva, which is the thin, clear tissue that lines the inside of the eyelid and covers the white part of the eye. It can affect one or both eyes and can be highly contagious. Common symptoms include redness, itching, tearing, and discharge from the eyes. In this article, we will address some frequently asked questions about conjunctivitis.

The three most common types of conjunctivitis include:

1. Viral conjunctivitis

• Symptoms and transmission: The main symptoms of viral conjunctivitis are watery discharge, redness, and itching. It spreads through direct contact with infected individuals or contaminated surfaces.
• Treatment options and management: Most cases resolve on their own within a week, however, over-the-counter lubricating eye drops can help alleviate symptoms.

2. Bacterial conjunctivitis

• Symptoms and transmission: Thick yellow or greenish discharge, redness, and swelling are characteristic of bacterial conjunctivitis. It spreads through direct contact with infected individuals or contaminated surfaces.
• Treatment options and management: Antibiotic eye drops or ointments prescribed by a healthcare professional are often necessary to treat bacterial conjunctivitis. In most cases, bacterial conjunctivitis can be managed at home.

3. Allergic conjunctivitis

• Symptoms and triggers: Allergic conjunctivitis is accompanied by symptoms of redness, itching, and watery discharge. It can affect both eyes and may also be accompanied by sneezing, runny nose, and itchy throat. It is usually caused by an allergic reaction to substances like pollen, pet dander, or dust mites.
• Treatment options and management: Avoiding allergens is key. Over-the-counter antihistamine eye drops can provide relief. Severe cases may require prescription medications.

Healthcare professionals typically rely on a combination of physical examination and medical history review to diagnose conjunctivitis. By examining the eyes and asking questions about symptoms, doctors can often determine the cause of conjunctivitis. However, in some cases, further testing may be necessary.

Laboratory tests and cultures are sometimes conducted to help differentiate between viral, bacterial, and allergic conjunctivitis. During a laboratory test, a sample of discharge from the eye is collected and sent to a lab for analysis. Cultures help identify the particular bacteria or virus causing the infection.

Yes, conjunctivitis can be highly contagious, depending on its cause. Both viral and bacterial conjunctivitis can easily spread from person to person through direct contact with infected eye secretions or contaminated objects. However, you can reduce your risk by following these measures:

• Wash your hands frequently with soap and water.
• Avoid touching your eyes unnecessarily. Use clean tissues or disposable wipes to clean your eyes, avoiding reusing them.
• Avoid sharing personal items such as towels, washcloths, pillowcases, or eye cosmetics.
• Disinfect surfaces that may come into contact with infected secretions.

While it may not always be possible to prevent conjunctivitis, there are several measures you can take to reduce your risk of developing an eye infection:

• Wash your hands frequently with soap and water, especially before touching your eyes or applying eye drops.
• Avoid rubbing your eyes, as this can introduce bacteria or viruses into the eye.
• Do not share towels, washcloths, pillowcases, or eye cosmetics with others.
• Wash any shared items thoroughly before using them.
• Follow proper contact lens hygiene and cleaning instructions.
• Remove and disinfect your lenses regularly.

Although there is no specific treatment for viral conjunctivitis, there are self-care measures and symptom relief options that can help alleviate discomfort and promote faster recovery.

• Practising good hygiene: Wash your hands frequently with soap and water.
• Applying a warm compress: This can help relieve the discomfort caused by the infection.
• Using artificial tears: Over-the-counter artificial tears can help lubricate the eyes and reduce dryness and irritation.
• Avoid contact lenses: It is recommended to refrain from wearing contact lenses until the infection clears up.
• Avoid eye makeup: Using eye makeup can worsen the irritation and prolong the healing process.

In some cases, antiviral medications may be prescribed by a healthcare professional to help speed up recovery. In general, most people start experiencing symptom relief within7-14 days, but it may take up to several weeks for the infection to completely clear up.

If you have bacterial conjunctivitis, your healthcare provider may prescribe antibiotic eye drops or ointments to help clear the infection. These medications work by killing the bacteria causing the infection. It is important to follow your doctor's instructions and complete the full course of antibiotics to ensure that the infection is completely eradicated.

Tips for proper use of medications:

• Wash your hands thoroughly before and after applying eye drops or ointments.
• Tilt your head back and pull down your lower eyelid to create a small pouch.
• Squeeze the prescribed number of eye drops into the pouch or apply a thin line of ointment along the lower eyelid.
• Close your eyes gently and rotate your eyeball to distribute the medication.
• Avoid touching your eyes or rubbing them after applying the medication.

The treatment of allergic conjunctivitis includes:

1. Allergen avoidance and triggers identification

• Identify and avoid triggers that may cause an allergic reaction in your eyes, such as pollen, dust mites, pet dander, or certain foods.
• Keep windows closed during high pollen seasons and use air purifiers to reduce allergens indoors.
• Use hypoallergenic bedding and regularly clean carpets, curtains, and other surfaces that may harbour allergens.

2. Over-the-counter antihistamine eye drops or oral medications

• Antihistamine eye drops provide relief from itching, redness, and swelling caused by allergic conjunctivitis.
• Oral antihistamines can help alleviate other allergy symptoms like sneezing and a runny nose.

If you experience severe allergic symptoms such as difficulty breathing, swelling of the face or throat, or a sudden increase in symptoms despite using over-the-counter medications, seek immediate medical attention.

While most cases of conjunctivitis clear up on their own without any complications, it is important to be aware of these potential complications and seek medical attention if necessary. Complications associated with conjunctivitis include:

1. Corneal involvement and potential vision problems

• In severe cases of conjunctivitis, the infection can spread to the cornea, the clear outer layer of the eye. This is known as keratitis and can lead to vision problems if left untreated. The symptoms of corneal involvement include increased sensitivity to light, blurred vision, and severe eye pain.
• Prompt treatment by an ophthalmologist is essential to prevent further damage to the cornea and preserve vision.

2. Secondary infections and long-term effects

• Conjunctivitis caused by bacteria or viruses can sometimes lead to secondary infections if not properly treated.
• Bacterial conjunctivitis, for example, can progress to a more serious condition called cellulitis, which affects the deeper layers of the skin around the eye.
• Chronic or recurrent conjunctivitis can also result in scarring of the conjunctiva, leading to long-term discomfort and visual disturbances.

Signs you need medical attention:

• Severe eye pain
• Worsening vision
• Significant discharge from your eyes
• Pink eye along with high fever
• Swelling around the eyes
• Difficulty opening or closing your eyes
• These symptoms may indicate a more serious underlying condition that requires prompt evaluation and treatment.

While most cases of conjunctivitis can be managed with over-the-counter eye drops and home remedies, it is important to seek medical attention if symptoms persist or worsen. Early intervention allows for proper diagnosis and targeted treatment, which can help prevent complications and speed up recovery.

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