Redness and itching of the eyes

Causes of Redness and Itching of the Eyes

The eyes are one of the most sensitive parts of the body and are prone to several conditions that may cause redness and itching. Redness and itching of the eyes may be caused by environmental factors, such as allergies, dry air, contact lenses, and dirt, or by medical conditions, such as conjunctivitis, blepharitis, and uveitis.


Allergies are an immune system response to a foreign substance, such as pollen, pet dander, dust mites, or mold. When these substances come in contact with the eyes, they can cause redness, itching, burning, and watery discharge.

Dry Air

Dry air can cause the eyes to become dry and irritated, leading to redness and itching. This is especially true during the winter months when the air is dryer.

Contact Lenses

Contact lenses can cause the eyes to become dry and irritated, leading to redness and itching. Wearing the lenses for too long, not properly cleaning the lenses, or using lenses past their expiration date can all contribute to these symptoms.

Dirt and Irritants

Dirt and other irritants can get into the eyes, leading to redness and itching. Rubbing the eyes can also cause these symptoms. It is important to keep the eyes clean to prevent irritation.

Conjunctivitis (Pink Eye)

Conjunctivitis, also known as pink eye, is caused by a virus or bacteria and can spread easily from person to person. In addition to redness and itching, symptoms of this condition include swollen eyelids, eye discharge, and a feeling of grittiness.


Blepharitis is an inflammation of the eyelids. It is usually caused by bacteria, but can also be caused by a skin condition such as seborrheic dermatitis. Common symptoms include redness, itching, burning, crusty eyelids, and dry eyes.


Uveitis is an inflammation of the middle layer of the eye, and can cause redness, itching, and pain. It can be caused by an infection, allergy, or other medical condition.


Treatment for redness and itching of the eyes depends on the cause. Allergies and dry air can usually be treated with over-the-counter eye drops to moisturize the eyes. Conjunctivitis, blepharitis, and uveitis may require prescription ointments or drops. It is important to see a doctor if the symptoms persist.


The best way to prevent redness and itching of the eyes is to avoid triggers such as allergens, dirt, and contact lenses. If contact lenses are worn, it is important to follow the directions carefully and to regularly clean the lenses. It is also important to get regular check-ups with an eye doctor.