Blinking is a normal reflex that cleans and lubricates the eyes. It also protects them from bright lights and foreign objects. Children naturally blink more than adults. However, excessive blinking can sometimes indicate underlying issues.

Foreign objects in the eye: Sudden, excessive blinking can be a reaction to something stuck in the eye, such as an eyelash, dust, or sand. If this occurs, parents can help by flushing the child's eye with clean water, ensuring they avoid rubbing. Pour clean water into a small cup, tilt the child's head back, add a few drops to the eye, and instruct them to blink as the water flows in.

Allergies: Dry eyes can cause increased blinking and rubbing. Several signs suggest allergies as a cause of excessive blinking, including a stuffy or runny nose, sneezing, red or watery eyes, and itching. Parents should consult a doctor for advice on appropriate oral medication and eye drops.

Dry eyes: Not all dry eye cases are allergy-related. Dry weather and environmental pollutants can also contribute to dry eyes and excessive blinking in children. A humidifier can help if the air is dry, especially during colder months. Discourage eye rubbing and encourage rest and the use of artificial tears as directed.

Vision problems: Excessive blinking can be a sign of vision problems. Sometimes, it's the child's way of trying to focus. Other signs of potential vision issues include frequent headaches, squinting, tilting the head while focusing, excessive eye rubbing, holding books close to the face, or sitting too near the television.

Strabismus: Children with strabismus may blink more than others. Strabismus often appears around the age of 3. In this condition, one eye appears to deviate from the other. Newborns may seem to have strabismus during their first 1-2 months, but their eyes usually self-correct within a few months.

Eye tics: This neurological condition causes involuntary spasms of the eye or surrounding muscles, leading to repetitive movements like excessive blinking or twitching. These movements are often sudden, rapid, and uncontrollable. Tics are more common in boys and typically start around the age of 5. If excessive blinking is suspected to be due to a tic, parents should seek medical advice.

Stress and anxiety: Some children experiencing stress or anxiety may blink more than usual. Anxiety can exacerbate eye tics. Prolonged stress and anxiety can make children more sensitive to light and eye strain, leading to increased blinking.

Bao Bao (According to Cleveland Clinic)