With the constant exposure to digital screens, many of us often rub our eyes especially because they get very itchy, which is a common problem called ocular allergy. This can occur because of a condition called as dry eye syndrome.

Ophthalmologist Dr Parag Sawal, senior consultant, Sharp Sight Eye Hospitals, explains, "Itchy eyes related problems can be triggered by exposure to pollen, animal fur, mould, dust mites, make-up, or eye drops. The body reacts to the trigger by releasing histamine, causing the blood vessels in the eye/or around the eyes to dilate and irritating the nerve endings so the eyes water.

"When the eyes turn red because of an allergy, it is known as allergic conjunctivitis. Other types of allergy may also lead to itchy eyes. For example, a condition called atopic keratoconjunctivitis produces an inflammation of the surface of the eye because of an allergy to a specific substance and can lead to distorted vision. Another condition, vernal keratoconjunctivitis, produces inflammation in the membrane on the surface of the eye and affects mostly adults."