On average, a baby’s spontaneous eye blinking (SB) rate is fewer than four blinks per minute, which increases with age. The blink rate reaches a minimum of 14 to 17 times per minute by adolescence and rises to 15 to 30 times in adulthood (1). However, if you notice excessive blinking in children, it may indicate an underlying cause.
This post explains some of the common causes of excessive blinking in kids and its complications, treatment, and prevention.
Blinking is an involuntary and natural reflex that helps lubricate and clean the eyes. Your child may blink more when exposed to light or dust. Sometimes, children may blink excessively as part of a new habit or due to eye strain.
However, if your child blinks so often that it disrupts their everyday activities, you need to know the underlying cause. Also, if your child shows any signs of discomfort or pain while blinking, taking them for an eye exam is a good move.
Here are some of the most common causes of excessive blinking in children.
- OCD: Compulsive eye blinking is one of the symptoms of obsessive compulsive disorder (OCD). OCD is characterized by obsessive thoughts and compulsions. Your child might blink excessively to soothe themselves during an episode of OCD. OCD eye blinking is generally seen in brief episodes and comes on suddenly (2).
- Tics: Motor tics often take the form of unusual eye movements, such as repetitive blinking (3). Unlike OCD-driven excessive blinking, tics are not caused by the need to relieve an obsessive urge but are involuntary movements of the muscles (4). Tics may be caused by sleep deprivation or stress and are benign.
- Eye strain: Children often blink excessively when they suffer from eye strain. Staring at the TV, computer, or phone screen for an extended period or reading books for too long can cause eye strain in children and lead to excessive blinking.
- Dry eyes: If your child complains of a burning sensation in the eyes or rubs their eyes often and blinks excessively, it could be due to dry eyes. Dry eyes can be caused by a host of factors, including immune deficiencies or neurologic ailments (5).
- Allergies: The same factors that make your child sneeze or have a runny nose may also cause eye allergies and lead to excessive blinking.
- Blepharitis: It refers to the inflammation of the eyelids. The condition is usually caused by a bacterial infection in the eye (6). Lack of proper hygiene and care of the eyes are common causes of this condition.
- Vision issues: Common vision problems, such as nearsightedness and farsightedness, can also cause the child to blink often and rub their eyes in a futile bid to correct the vision.
- Uncorrected refractive errors: When the child already has myopia or hyperopia, parents may miss out on the need to check and reassess the vision periodically. If there is an uncorrected refractive error, the resulting difference between what is needed and what the child’s glasses offer may cause excessive blinking.
- Cornea issues: These may range from ingrown eyelashes to abrasion on the surface of the cornea. These problems might irritate the eyes and cause excessive blinking in children.
- Strabismus: Strabismus or crossed eyes (squint) may also cause excessive blinking in children. This could be a result of extreme farsightedness or weak eye muscles (7).
Some of the common symptoms associated with excessive blinking in children include
- Rubbing of the eyes often.
- Blinking far more than usual. A young child blinking more than 15 times per minute is a warning sign (8).
- Pink eyes.
- Difficulty reading.
- Dramatic vision changes.
The following are some of the complications of excessive blinking in children.
- Excessive blinking caused by underlying factors such as myopia, strabismus, or hyperopia could affect your child’s progress at school or their ability to play, learn, and carry out everyday activities.
- In some rare cases, excessive blinking may indicate neurological ailments, such as BEB (benign essential blepharospasm) and Wilson disease. BEB may possibly lead to an inability to keep the eyes open (9), while Wilson disease may prevent the body from getting rid of excess copper from the body and affect the entire central nervous system (10).
What To Expect During Diagnosis?
The diagnosis may involve a routine eye examination to find out the cause of excessive blinking. Eye infections, eye irritations, and eye strain can be quickly diagnosed via an eye examination.
- Expect a physical examination of the eyes and the eyelids.
- The doctor may ask the child to identify pictures, read letters, or do some activities to assess your child’s vision.
- The doctor may put in some eye drops to dilate the pupils.
- The doctor may flash a light in your child’s eyes and see how the eye reacts to it.
- To assess eye movement, the doctor might ask the child to follow an object held by the doctor.
- A microscope may be used to magnify and examine the eye.
Excessive blinking is usually caused by benign causative factors. The doctor may suggest the following treatments based on the causes.
- Dryness or infection: Eye drops that make up for the lack of tear formation are prescribed for eye dryness. Antibiotic eye drops are prescribed if there is an eye infection. In some cases of persistent infection, steroid eye drops may also be recommended by the ophthalmologist.
- Allergic reactions: If the excessive blinking is due to allergies, antihistamines are given.
- Vision problems: If the child suffers from vision problems, corrective glasses are prescribed. For refractive error, the doctor may do a thorough eye test and recommend the right eyeglasses to correct the error. The doctor may also recommend vision therapy and exercises to improve overall eye health. In some rare cases, surgery may be advised.
- Scratches on the corneal surface: Moisturizing drops or antibiotic drops are given to help the scratch heal. The ophthalmologist may also ask the child to wear an eye patch that prevents them from using the affected eye continuously. If the child has ingrown eyelashes, the ophthalmologist may recommend the use of electrolysis to remove them.
- Eye irritation: Apart from using protective gear when in pollution-heavy areas, you can follow preventive strategies outlined by the doctor. These include avoiding bright lit areas and dusty locations, taking breaks during reading sessions, and practicing good eye hygiene.
- Tics or habit: If it is due to a tic or compulsive habit, it may be treated via counseling with a child psychologist. Often, tics go away on their own.
For more serious ailments, the ophthalmologist may recommend further tests before deciding upon a treatment plan. Always consult your doctor for the right prescription before administering any of these treatments.
Follow these simple steps to prevent excessive blinking in your child.
- Avoid irritants: Minimize exposure to irritants, such as dust or pollution. Exposure to bright light s, even direct sunlight, may irritate your child’s sensitive eyes. Ask the child to wear protective glasses or other gear when they step outside.
- Avoid eye strain: Help the children regulate activities that cause eye strain. Demarcate times for reading, writing, screen time etc., and ensure they take breaks in between. No screen time for babies less than two years of age. Also, ensure that the lighting inside the house is right for the eyes and not too bright or too dull.
- Reduce stress and anxiety: Avoid putting pressure on the child in situations that stress them out. If the child has trouble handling anxiety or seem to get anxious in certain situations, talk to a child psychologist for ways to help them deal with it.
- Schedule outdoor playtime: Good overall health leads to good eye health too. Outdoor play ensures that children stay healthy and active, and it also keeps stress under control. Schedule outdoor play every day so that the child can do activities that do not strain the eyes.
- Eliminate the risk of dry eyes: Proper diet helps avert dry eye problems. Add plenty of greens and omega 3 foods to their meals (11).
- Prioritize eye care: Wash the child’s eyes with clean, cold water frequently and clean the eyes as advised by the ophthalmologist. Avoid excessive scrubbing or rubbing.
- Ensure proper sleep: A good night’s sleep helps the child’s eyes get proper rest. Make sure your child does not stay up too late and that they get at least eight hours of sleep per night.
- Take the prescribed medication diligently: If the doctor has prescribed drops for continuous use, make sure you follow the instructions diligently. For example, if the excessive blinking is due to eye dryness, and the doctor has prescribed drops to keep the eyes moist, consistent use can prevent the recurrence of excessive blinking.
Frequently Asked Questions
1. Do children with autism blink a lot?
2. What does excessive blinking mean in psychology?
Excessive blinking in children usually resolves independently or can be quickly addressed with the help of your child’s ophthalmologist. You may also prevent its recurrence in children by avoiding irritants and eye strain, minimizing their stress and worry, ensuring they get enough sleep, etc. Also, ensure your child receives an eye exam at least once in a year or two to aid in the early diagnosis of any underlying problems (12). Finally, remember that proper eye care is important, and excessive blinking may affect your child’s everyday activities even if it does not indicate a serious condition.
It is important to take your child to a pediatrician or an ophthalmologist if you find them blinking excessively. Take a glimpse at the below infographic for the causes and tips to prevent excessive blinking in your child.
- Blinking is an involuntary reflex that lubricates the eyes and keeps them clean. A child may blink more when their eyes are exposed to dust, dirt, or light.
- If a child blinks so excessively that it affects their daily activities, it indicates an underlying issue.
- Prompt diagnosis and timely treatment are essential to avert complications.
- Unless caused by a medical condition, excessive blinking in children can be reduced or prevented by following basic eye care like avoiding rubbing the eyes.
2. Obsessive-Compulsive Disorder; National Institute of Mental Health
3. Tourette Syndrome; The Nemours Foundation
4. OCD and Tourette Syndrome: Re-examining the Relationship; International OCD Foundation
5. Are We Missing Dry Eye in Children?; American Academy of Ophthalmology
6. What Is Blepharitis?; American Academy of Ophthalmology
7. Strabismus (crossed eyes); American Optometric Asssociation
8. Ru-Lian Zhao et al.; Causes of excessive blinking in children aged 4-12 years; International Journal of Clinical and Experimental Medicine (2019).
9. Benign Essential Blepharospasm; National Organization for Rare Disorders
10. Wilson Disease; Johns Hopkins Medicine
11. Top foods to help protect your vision; Harvard University
12. Eye Exam: What to Expect; Cleveland Clinic
13. Ozdem Erturk et al., Startle and blink reflex in high functioning autism; Clinical Neurophysiology (2016).
14. L L Sears et al., Abnormal classical eye-blink conditioning in autism; Journal of Autism and Developmental Disorders (1994)
15. C Mohr et al., Blinking and schizotypal thinking; Journal of Psychopharmacology (2005)
16. Rafal Paprocki and Artem Lenskiy; What Does Eye-Blink Rate Variability Dynamics Tell Us About Cognitive Performance?; Frontiers in Human Neuroscience (2017)