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What Are the Causes of Blepharitis? Hero

What Are the Causes of Blepharitis?

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Patients with blepharitis experience inflamed eyelids and itchy, dandruff-like scales on the eyelashes. The condition is more common among people with dry skin, acne, diabetes or poor hygiene. 

This eye condition can affect people of all ages. In this post, your local vision therapy provider, Park Slope Eye, discusses blepharitis and its causes. 


Blepharitis is a common eye disease that can be caused by bacterial infection or skin conditions like scalp dandruff or rosacea. It’s not contagious and has no impact on the patient’s vision. Common symptoms include a burning sensation in the eyes, excessive tearing, itching, red and swollen eyelids, dry eyes and crusty eyelids. 

There are two types of blepharitis: anterior and posterior. Anterior blepharitis persists at the outer front edge of the eyelids where the eyelashes are, while posterior blepharitis occurs in the inner edge of the eyelid that’s connected to the eye. 

Good hygiene can usually keep blepharitis at bay. This includes practices such as frequent scalp and face washing, using a warm compress on the eyelids and scrubbing the eyelids. You may be prescribed with an antibiotic if your case is caused by a bacterial infection. It’s also advisable to stop wearing contact lenses while undergoing treatment. 


Anterior Blepharitis is usually caused by bacteria (staphylococcal blepharitis) or scalp and eyebrow dandruff (seborrheic blepharitis). Excessive amounts of bacteria in the eyelids can cause infection. In some cases, blepharitis can develop due to allergies or a mite infestation. 

Posterior Blepharitis is caused by the irregular production of oil in the eyelids (meibomian blepharitis). The dry surface becomes a good breeding place for bacteria. It may be a result of skin conditions like rosacea or dandruff of the scalp. 

Reduce your risk of developing blepharitis by maintaining good eye health and hygiene. Routinely visit your local eye doctor, Park Slope Eye, for eye exams. Schedule an appointment online to learn more about our services. We assist patients in Brooklyn, NY.


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  • Written by Justin Bazan

    Dr. Justin Bazan is a 2004 SUNY College of Optometry graduate. He established Park Slope Eye in 2008 with the goal of providing high quality eyecare and incredible eyewear for the neighborhood. He has a true passion for optometry and stay up to date with the current research and trends. He is active in the profession and holds several leadership positions on the local, state and national levels. Dr. Bazan is a Park Slope local and can often be seen out in the neighborhood so be sure to say Hi next time you see him!

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