Chronic Conjunctivitis: Causes and Prevention Tips - Ophthalmology

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Chronic conjunctivitis, or chronic inflammation of the conjunctiva, can be a frustrating and persistent condition. It is characterized by symptoms such as redness, irritation, discharge, and a sensation of grittiness or foreign body presence in the eye. Understanding the causes and prevention strategies is crucial for managing this condition effectively.


Causes of Chronic Conjunctivitis
1. Allergic Reactions: One of the most common causes of chronic conjunctivitis is allergies. Allergens such as pollen, dust mites, pet dander, and mold can trigger an inflammatory response in the conjunctiva, leading to symptoms of redness and irritation.

2. Environmental Irritants: Exposure to smoke, pollution, chemicals, or even prolonged screen time can irritate the eyes and contribute to chronic conjunctivitis.
3. Infectious Agents: While acute conjunctivitis is often caused by bacteria or viruses, chronic cases can be due to persistent infections, such as those caused by Chlamydia or other less common pathogens.

4. Contact Lens Use: Wearing contact lenses, especially if they are not cleaned properly or worn for extended periods, can lead to irritation and inflammation of the conjunctiva. This is particularly true for colored contact lenses, which may not allow as much oxygen to reach the eye compared to regular lenses.

5. Underlying Health Conditions: Conditions such as blepharitis (inflammation of the eyelids), dry eye syndrome, or autoimmune diseases can also contribute to chronic conjunctivitis.


Prevention Tips
1. Avoid Allergens and Irritants: If you suspect allergies are a trigger, try to identify and avoid specific allergens. This may involve using air purifiers, keeping windows closed during high pollen seasons, and regularly cleaning your living space to reduce dust and pet dander.

2. Proper Contact Lens Hygiene: If you wear contact lenses, ensure that you follow proper hygiene practices. This includes washing your hands before handling lenses, using the appropriate cleaning solutions, and not exceeding the recommended wearing time. It may be beneficial to limit the use of colored lenses, especially if they exacerbate your symptoms.

3. Regular Eye Care: Consider consulting with an eye care professional for regular check-ups. They can provide tailored advice and may recommend specific treatments, such as antihistamine eye drops for allergies or lubricating drops for dry eyes.

4. Limit Screen Time: To reduce eye strain, take regular breaks from screens. The 20-20-20 rule is a good guideline: every 20 minutes, look at something 20 feet away for at least 20 seconds.

5. Protective Eyewear: When exposed to irritants or during outdoor activities, consider wearing sunglasses or protective eyewear to shield your eyes from environmental factors.


Regarding Your Symptoms
The sensation of halos or glare around lights, especially at night, can be attributed to several factors. While you mentioned having astigmatism, which can cause visual distortions, other potential causes include:
- Dry Eyes: Insufficient tear production can lead to fluctuating vision and increased sensitivity to light.

- Corneal Issues: Conditions such as corneal scarring or irregularities can also cause light distortion.

- Cataracts: Although less likely given your age, cataracts can lead to increased glare and halos around lights.

It is advisable to discuss these symptoms with your eye care provider, who may recommend further evaluation or treatment options.

In summary, chronic conjunctivitis can stem from various causes, including allergies, irritants, and contact lens use. By implementing preventive measures and seeking professional advice, you can manage your symptoms more effectively and improve your overall eye health.