Dry eye is a common side effect of glaucoma eye drops, but it can also be a symptom of blepharitis. Blepharitis is a condition characterized by inflammation of the eyelids, often leading to redness, swelling, and crusting. Learn about the connection between blepharitis and dry eye, including their symptoms, causes and treatments, and when to seek medical attention.*

Symptoms of Blepharitis and Dry Eye

Blepharitis and dry eye share numerous symptoms but are distinct conditions. Blepharitis typically causes flaking and crusting on the eyelashes, which can affect the tear film and lead to dry eye sensations. 

The National Eye Institute (NEI) indicates that while these conditions can occur together, they do not usually resolve completely.

Common blepharitis symptoms include:

• A sensation of something in the eye
• Burning or stinging
• Watery and itchy eyes
• Light sensitivity
• Red, swollen eyelids
• Foamy or bubbly tears
• Crusty eyelids or lashes

Typical dry eye symptoms include:

• Feeling of something in the eye
• Stinging or burning sensation
• Red eyes
• Light sensitivity
• Blurry vision

Causes and Treatments of Blepharitis and Dry Eye

Causes

Blepharitis is caused by bacterial overgrowth or clogged oil glands.

• Anterior blepharitis is caused by bacteria on the face and eyelids.
• Posterior blepharitis is caused by issues with the oil glands in the eyelids, sometimes triggered by conditions like rosacea or dandruff.

Dry eye results from insufficient tear production or poor tear quality. Factors include gland dysfunction and external conditions that cause tears to evaporate too quickly.

Treatments

To manage blepharitis, clean the eyelids daily with water and a gentle cleanser. Infections may require eye drops or medication. Addressing underlying conditions like rosacea can also help.

Treatment options for dry eye include:

Over-the-counter eye drops, prescription eye drops, and lifestyle changes such as avoiding smoke, using a humidifier, and taking breaks from screens. In severe cases, tear duct plugs or surgery may be necessary.

Seek medical advice if symptoms of dry eye or blepharitis persist or worsen. Proper diagnosis and treatment can prevent complications and improve quality of life.

*Veazey, K. (2023, March 31). Can you have blepharitis and dry eye at the same time? Medical News Today. https://www.medicalnewstoday.com/articles/blepharitis-and-dry-eye#:~ 

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