10 Causes Of Excessive Blinking In Children & Its Diagnosis

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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.

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Causes Of Excessive blinking In Children

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. Dr. Ranjodh S Boparai, an ophthalmic surgeon from Philadelphia, Pennsylvania, says, “Excessive blinking is typically a feature of an underlying etiologyiXCauses of a disease or a condition , which may be benign or serious. The causes of excessive blinking include eye allergies, dry eyes, corneal foreign body, corneal scratches, ingrown eyelashes, refractive errors (nearsighted or farsighted), strabismus (eye misalignment), amblyopia (lazy eye), environmental changes, stress, anxiety, and habitual tic. Other serious but rare causes of excessive blinking include seizures, Wilson’s disease, multiple sclerosisiXAn autoimmune disease that affects the central nervous system, including the brain and spinal cord. , and Tourette syndromeiXA disease of the nervous system responsible for causing repetitive, involuntary movements or unwanted vocal sounds .”

Here are some of the most common causes of excessive blinking in children.

  1. 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).
  1. 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. According to the CDC’s National Survey of Children’s Health 2013-2019, Tourette syndrome is relatively common among children in the US, affecting approximately 0.3% of those aged 3 to 17 years. The condition is identified by the presence of multiple motor tics and at least one vocal tic.
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According to the American Academy of Opthalmology, tics are also caused due to anxiety, fatigue, and boredom (17).
Motor tics often take the form of unusual eye movements, such as repetitive blinking.

Image: Shutterstock

  1. 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. Hence, restricting children’s screen time is prominent to maintain to safeguard eye health is crucial.

YouTuber Rochelle Abella’s daughter took her for an eye checkup to address her excessive eye blinking issue. Narrating her experience, she says, “The reason for her excessive blinking is probably too much screen time. The doctor advised us to reduce her screen time and take her outside for at least two hours daily because sunlight is also good for her eyes. I am relieved because I have nothing to worry about after the eye checkup (i).”

  1. 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).
  1. Allergies: The same factors that make your child sneeze or have a runny nose may also cause eye allergies and lead to excessive blinking.
  1. 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.
  1. 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.
  1. Uncorrected refractive errors: When the child already has myopiaiXAn eye condition where close objects appear clear while those farther appear blurry (nearsightedness) or hyperopiaiXAn eye condition where you can see things that are far away clearly, and nearby objects blurry (farsightedness) , 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.
  1. 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.
  1. 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).

There can be single or multiple factors at play for frequent blinking in children. However, its occurrence may decrease with age and vary for girls and boys, as shown in the graph below. The study was done on 578 children, 341 boys and 237 girls, with excessive blinking. The graph indicates that frequent blinking in children is negatively correlated with age. It also shows that the incidence is lower in girls than in boys.

The correlation of frequent blinking in children by age and gender

Source: Causes of excessive blinking in children aged 4-12 years; International Journal of Clinical and Experimental Medicine
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A foreign body in the eye, conjunctivitis, and astigmatism are other common causes of excessive blinking in children (17) (18).
Crossed eyes may also cause excessive blinking in children.

Image: Shutterstock

Signs And Symptoms Associated With Excessive Blinking In Children

Rubbing of the eyes often.

Image: Shutterstock

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.
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Eye blinking due to a habitual tic starts at around five years of age (18).

Complications Of Excessive Blinking

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 diseaseiXA rare genetic disorder where the body accumulates too much copper, notably in the vital organs such as the liver and brain . 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 or neurologist 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.

Treatment For Excessive Blinking In Kids

Eye drops may be prescribed for blinking caused by dryness.

Image: Shutterstock

Excessive blinking is usually caused by benign causative factors. The doctor may suggest the following treatments based on the causes.

  1. 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.
  1. Allergic reactions: If the excessive blinking is due to allergies, antihistamines are given.
  1. 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.
  1. 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.
  1. 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.
  1. 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.

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A habitual tic affects boys twice as often as girls (18).

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.

How To Prevent Excessive Blinking In Children

Restricting sceen time can help reduce eye strain

Image: Shutterstock

Follow these simple steps to prevent excessive blinking in your child.

  1. Avoid irritants: Minimize exposure to irritants, such as dust or pollution. Exposure to bright lights, even direct sunlight, may irritate your child’s sensitive eyes. Ask the child to wear protective glasses or other gear when they step outside.
  1. 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.
  1. Reduce stress and anxiety: Avoid putting pressure on the child in situations that stress them out. If the child has trouble handling anxiety or seems to get anxious in certain situations, talk to a child psychologist for ways to help them deal with it.
  1. 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.
  1. 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).
  1. 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.
  1. 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.
  1. 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?

Studies have shown that children with autism may have an increased frequency of eye-blinking behaviors. They may also display a typical eye-blink conditioning compared to the control group (13) (14). Dr. Boparai adds, “When typical children are shown emotional scenes in movies, they tend to blink less. In contrast, children with ASD blink normally during emotional scenes. This hints that children with ASD struggle with recognizing emotional situations. Also, typical children will focus on the eyes when someone is talking to them, while children with ASD tend to focus on other features of the face.”

2. What does excessive blinking mean in psychology?

A few studies have reported that excessive blinking could indicate increased cognitive thinking and cerebral dopamine activity levels. Also, spontaneous eye blink rate could be associated with abnormal psychotic symptoms (15) (16). However, more studies are needed to establish these hypotheses.

3. Is excessive blinking a common issue in children or relatively rare?

The severity of excessive blinking largely depends on its underlying cause. In rare cases, excessive blinking is a symptom of a serious problem. It is often linked to corneal problems, habitual tics, uncorrected refractive errors, and misaligned eyesight (17).

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.

Infographic: Causes And Preventive Measures For Excessive Blinking

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.

causes of excessive blinking in children (Infographic)

Illustration: Momjunction Design Team

Get high-quality PDF version by clicking below.

Download Infographic in PDF version Download Infographic
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Key Pointers

  • 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.

Does your child blink excessively? Watch this informative video to learn about the causes of this phenomenon and the steps you can take to help your child.

Personal Experience: Source

References

MomJunction's articles are written after analyzing the research works of expert authors and institutions. Our references consist of resources established by authorities in their respective fields. You can learn more about the authenticity of the information we present in our editorial policy.

1. Leigh F. Bacher; Factors Regulating Eye Blink Rate in Young Infants; HHS Author Manuscripts (2011).
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)

17. Excessive Blinking in Children; The American Academy of Ophthalmology
18. Excessive Blinking in Children; American Association for Pediatric Ophthalmology & Strabismus
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