When Should a Child See an Ophthalmologist? The Quick Answer
You do not need to wait until a child says they cannot see well before arranging an eye examination. During childhood, many vision problems can go unnoticed because children may not know how to explain what they are experiencing, or because they compensate for poor vision in one eye by relying on the other.
As a general guide, a child should see an ophthalmologist if:
- They do not pass a vision screening test carried out by their paediatrician or at school.
- One eye turns inwards or outwards.
- They move very close to objects or screens.
- They squint to see things in the distance.
- They cover one eye or tilt their head to look at something.
- They have frequent headaches related to visual tasks.
- There is a family history of significant eye problems.
- There is a visible difference between the two eyes.
- They have suffered an eye injury.
- Parents, teachers or paediatricians suspect that there may be a vision problem.
Seek urgent medical attention if you notice a white pupil reflex, sudden vision loss, severe pain, a significant eye injury, a very red eye, marked swelling or sudden-onset eye misalignment.
Why Are Eye Examinations Important During Childhood?
Vision is not fully developed at birth. During the first few years of life, the brain learns to interpret the images it receives from both eyes.
For this process to develop correctly, each eye needs to:
- Receive a sufficiently clear image.
- Remain properly aligned.
- Transmit information correctly to the brain.
- Work together with the other eye.
When one eye sends a blurred image, is misaligned or remains partly covered, the brain may begin to ignore it.
This can lead to amblyopia, commonly known as a lazy eye.
Amblyopia is easier to treat during the first few years of life, while the visual system is still developing. Detecting a problem early can therefore prevent vision loss from becoming permanent.
Should a Child Who Appears to See Well Still See an Ophthalmologist?
Yes, in certain circumstances.
A child may function normally despite having poor vision in one eye. If the other eye sees well, they can read, play, recognise faces and carry out many activities without the family noticing a problem.
Young children also have no reference point for how clear vision should look. To them, the way they see is normal.
That is why they do not always say:
- “My vision is blurry.”
- “I cannot see well out of one eye.”
- “The letters run together.”
- “I find it hard to judge distances.”
Detection often depends on paediatric check-ups, school vision screening and observations made by parents and teachers.
At What Age Should a Child Have Their First Eye Examination?
There is no single age that is right for every child.
An examination should be arranged sooner if there is:
- An abnormal finding during vision screening.
- Strabismus.
- A relevant family history.
- Premature birth.
- Neurological or genetic conditions.
- Visible abnormalities in the eyes.
- Suspected poor vision.
Vision checks form part of routine paediatric examinations from the first months of life. If any of these checks is abnormal, a comprehensive ophthalmic examination should be carried out.
For children without symptoms or risk factors, the timing of examinations will depend on the vision screening programme and the paediatrician’s recommendations.
Eye Checks During the First Months of Life
During the first few months, checks may include:
- The red reflex in the pupils.
- The response to light.
- The ability to fixate on and follow objects.
- Eye alignment.
- The appearance of the cornea and pupils.
The red reflex is the reddish glow seen when light is shone into the eye. If it is absent, asymmetric or replaced by a white reflex, this may indicate a condition that requires prompt assessment.
Babies should also gradually begin to:
- Look at faces.
- Follow moving objects.
- Respond to visual stimuli.
- Coordinate both eyes more effectively.
If a baby does not fixate, follow objects or appear to respond to visual stimuli, seek professional advice.
Is It Normal for a Baby’s Eyes to Turn?
During the first few weeks of life, an occasional eye turn may be seen, particularly when the baby is tired.
However, an assessment should be arranged if:
- The eye turn is constant.
- The same eye always turns.
- The misalignment continues beyond the first few months.
- It appears suddenly.
- The child closes one eye to look at something.
- They regularly tilt or turn their head.
Strabismus is not always simply a cosmetic issue. It can interfere with visual development, cause amblyopia and affect coordination between the two eyes.
When Should a Child Under Three See an Ophthalmologist?
With young children, the family should pay attention to their visual behaviour.
Arrange an eye examination if the child:
- Does not fixate.
- Does not follow objects or people with their eyes.
- Has a constant eye turn.
- Has involuntary eye movements.
- Constantly rubs their eyes.
- Has persistent watery eyes.
- Has a pupil that looks white or different.
- Shows marked sensitivity to light.
- Has a drooping eyelid that covers the pupil.
- Moves excessively close to objects.
- Frequently bumps into furniture or people.
Even if a child cannot yet read letters, an ophthalmologist can use appropriate methods to assess their vision, prescription and eye health.
When Should a Preschool Child Have an Eye Examination?
Between the ages of three and five, it is particularly important to detect problems that could cause amblyopia.
At this stage, the following can be identified:
- Short-sightedness.
- Long-sightedness.
- Astigmatism.
- Strabismus.
- A difference in prescription between the two eyes.
- Problems with eye coordination.
- Congenital abnormalities that were not previously detected.
A comprehensive ophthalmic examination should be carried out if the child does not pass vision screening or if a reliable result cannot be obtained.
Not passing a vision test does not necessarily mean there is a serious condition, but it does indicate that the problem needs to be investigated more precisely.
When Should a School-Age Child See an Ophthalmologist?
Visual demands increase during the school years.
Children need to use their vision to:
- Read.
- Write.
- See the board.
- Copy text.
- Use computers and tablets.
- Play sports.
- Coordinate movements.
Arrange an eye examination if the child:
- Cannot see the board clearly.
- Moves very close to the paper.
- Narrows their eyes to focus.
- Loses their place when reading.
- Complains of blurred vision.
- Has frequent headaches.
- Tires quickly while doing homework.
- Avoids close-up tasks.
- Shows an unexpected decline in school performance.
- A teacher suspects that the child is not seeing clearly.
These symptoms are not always caused by an eye problem, but they do warrant an assessment to rule one out.
Signs That May Indicate a Child Is Not Seeing Clearly
The signs vary according to the child’s age and the type of problem.
Some of the most common include:
- Sitting very close to the television or holding a phone or books very close.
- Narrowing their eyes.
- Covering one eye.
- Turning or tilting their head.
- Blinking excessively.
- Rubbing their eyes frequently.
- Tripping or misjudging distances.
- Avoiding reading.
- Losing their place between lines when reading.
- Having difficulty identifying distant objects.
- Complaining of headaches.
- Experiencing double vision.
- Experiencing eye strain.
A single instance of one of these signs does not confirm a vision problem. However, if it occurs repeatedly or affects daily activities, an eye examination is advisable.
Common Vision Problems in Childhood
1. Short-Sightedness
Short-sightedness makes it difficult to see distant objects clearly.
A child with short-sightedness may:
- Be unable to see the board clearly.
- Sit close to the television.
- Narrow their eyes to see things in the distance.
- Have difficulty recognising people from a distance.
- Prefer close-up activities.
Short-sightedness may progress as a child grows. Children who are diagnosed therefore need regular check-ups to review their prescription and monitor how it develops.
2. Long-Sightedness
With long-sightedness, the eye needs to make extra effort to focus.
Children have a strong ability to accommodate and may compensate for it for some time.
However, significant long-sightedness may cause:
- Eye strain.
- Headaches.
- Blurred near vision.
- Inward turning of the eyes.
- Avoiding reading.
- Amblyopia.
Not every child with long-sightedness needs glasses. The decision depends on their age, prescription, symptoms and eye alignment.
3. Astigmatism
Astigmatism can cause blurred or distorted vision at both distance and near.
When significant, it can affect visual development.
Children may experience:
- Difficulty distinguishing fine detail.
- Headaches.
- Squinting.
- Eye strain when reading.
- Blurred vision.
4. Strabismus
Strabismus occurs when the eyes are not properly aligned.
One eye may turn:
- Inwards.
- Outwards.
- Upwards.
- Downwards.
The eye turn may be constant or intermittent.
Treatment depends on the cause and may include:
- Glasses.
- Treatment for amblyopia.
- Prisms in selected cases.
- Eye muscle surgery.
5. Amblyopia or Lazy Eye
Amblyopia occurs when one eye does not develop normal vision during childhood.
It may be caused by:
- Strabismus.
- A significant difference in prescription between the eyes.
- A congenital cataract.
- A drooping eyelid that covers the pupil.
- Other obstructions that prevent a clear image from forming.
Treatment may include glasses, patching, optical penalisation or other measures recommended by the specialist.
The earlier it is detected, the greater the chance of improving vision.
6. Blocked Tear Duct
Some babies have watery eyes and discharge because the tear duct has not opened fully.
Signs may include:
- Constant watering.
- Sticky or crusty discharge.
- Recurrent discharge.
- Skin irritation.
Many cases improve during the first year of life, but they should be assessed if symptoms persist, infections recur or painful swelling develops beside the nose.
7. Drooping Eyelid
Congenital eyelid ptosis may prevent the eye from opening properly.
If the eyelid covers part of the pupil, there is a risk that vision will not develop properly.
The child should also be assessed if they:
- Raise their eyebrows markedly.
- Tilt their head backwards.
- Have marked asymmetry between the two eyes.
Which Children Need More Frequent Eye Examinations?
Some children are at greater risk of developing vision problems.
More frequent eye examinations may be needed for children with:
- A family history of strabismus or amblyopia.
- A family history of high myopia.
- Childhood glaucoma or inherited eye conditions.
- Premature birth.
- Low birth weight.
- Neurological conditions.
- Genetic syndromes.
- Diabetes.
- Previous eye surgery.
- Eye injuries.
- Treatments that may affect the eyes.
The follow-up schedule should be tailored to each child’s condition and progress.
How Are Vision and School Performance Related?
Good vision is important for learning, but not every difficulty at school is caused by an eye problem.
An uncorrected prescription can make it difficult to:
- See the board.
- Read comfortably.
- Maintain visual attention.
- Copy text.
- Take part in sports.
However, conditions such as dyslexia are not caused by a refractive error or an eye movement problem.
When a child is having difficulty at school, it is reasonable to rule out a vision problem, but the assessment may also need input from paediatricians, teachers, educational psychologists and other professionals.
Can Screens Damage Children’s Eyesight?
Screen use may contribute to symptoms such as:
- Eye strain.
- Dry eyes.
- Headaches.
- Temporary blurred vision.
- A reduced blink rate.
In addition, spending little time outdoors and doing a great deal of close work have been associated with a higher risk of developing short-sightedness and of it progressing.
To reduce discomfort, it is advisable to:
- Take frequent breaks.
- Keep a suitable viewing distance.
- Avoid using the screen too close to the eyes.
- Make a conscious effort to blink.
- Spend time outdoors.
- Avoid glare and poor lighting.
If a child holds screens excessively close, their vision may need to be checked.
When Is a Childhood Eye Problem an Emergency?
Seek urgent medical attention if the child has:
- Sudden loss of vision.
- Severe eye pain.
- A significant eye injury.
- Exposure to chemicals.
- An object embedded in the eye.
- A very red eye accompanied by pain or sensitivity to light.
- Severe swelling around the eye.
- A sudden-onset eye turn.
- Sudden double vision.
- A white reflex in the pupil.
- Difficulty opening the eye after an impact.
After contact with a chemical, rinse the eye immediately with plenty of water and seek urgent medical attention.
What Tests Are Performed During a Paediatric Eye Examination?
The examination is adapted to the child’s age and ability to cooperate.
This may include:
- Medical history: symptoms, pregnancy, birth, medical conditions and family history.
- Visual acuity: using letters, pictures, symbols or tests designed for babies.
- Eye alignment: to detect strabismus.
- Eye movements: assessing how well the eyes work together.
- Pupil reactions: assessing pupil size and response to light.
- Refraction: measuring short-sightedness, long-sightedness and astigmatism.
- Anterior segment examination: cornea, iris, lens and eyelids.
- Fundus examination: assessing the retina and optic nerve.
In many children, eye drops are used to dilate the pupil and temporarily relax focusing.
This makes it possible to measure the prescription more accurately, even if the child cannot yet respond or read.
Can the Vision of a Child Who Cannot Yet Speak Be Tested?
Yes.
A paediatric eye examination does not rely solely on verbal responses.
The specialist can assess:
- The fixation response.
- How the child follows objects.
- The reaction to covering one eye.
- Responses to pictures or symbols.
- Objective instruments for measuring the prescription.
- Eye alignment.
There is therefore no need to wait until a child can read before having their eyes properly examined.
How Often Should a Child Have Their Eyes Examined?
The frequency depends on screening results, the child’s medical history and whether any vision problems are present.
As a general guide:
- Vision checks should form part of routine paediatric check-ups.
- If a child does not pass vision screening, they should have a comprehensive ophthalmic examination.
- After the age of five, vision screening may be repeated every one or two years.
- Children who wear glasses or have strabismus, amblyopia or an eye condition need an individual follow-up schedule.
The specialist will recommend the appropriate frequency based on the child’s progress.
What Happens If a Child Needs Glasses?
Children’s glasses may be prescribed to:
- Improve vision.
- Support normal visual development.
- Reduce focusing effort.
- Correct an eye turn related to the prescription.
- Treat or prevent amblyopia.
A child’s prescription is usually measured using eye drops that relax accommodation.
This reveals the true prescription, as children can compensate for a considerable amount of long-sightedness through focusing effort.
Not every small refractive error needs correction. The recommendation depends on the child’s age, the strength of the prescription and their visual function.
Common Misconceptions About Children’s Vision
Waiting for a Child to Say They Cannot See Clearly
Children do not always know how to recognise or explain a vision problem. Some have never seen any differently.
Assuming That a Child Who Does Not Trip Can See Perfectly
A child may adapt by relying mainly on the eye that sees better.
Thinking Strabismus Is Only a Cosmetic Problem
An eye turn can affect visual development and cause amblyopia.
Waiting Until a Child Can Read Before Having Their Vision Checked
Vision can be assessed from the first few months of life using age-appropriate tests.
Believing That Glasses Weaken the Eyes
Glasses do not make the eyes weaker. When prescribed, they provide a clear image and support visual development.
Stopping Patching Too Soon
Amblyopia treatment should be continued for as long as the specialist recommends to achieve the best possible result.
Frequently Asked Questions About Children’s Eye Examinations
At What Age Should I First Take My Child to an Ophthalmologist?
It depends on symptoms and risk factors. Vision checks begin during routine paediatric check-ups, and a comprehensive eye examination should be carried out if an abnormality is detected.
Should My Child See an Ophthalmologist Even If They Do Not Complain?
Yes, if they do not pass vision screening, have a relevant family history or show signs that suggest a vision problem.
How Can I Tell If My Child Cannot See Clearly?
They may move too close to objects, narrow their eyes, cover one eye, turn their head, struggle to see the board or complain of headaches.
Is It Normal for a Baby’s Eyes to Turn?
An occasional eye turn may occur during the first few weeks. If it is constant or persists beyond the first few months, it should be assessed.
What Does It Mean If a Child Has a Lazy Eye?
It means that one eye has not developed normal vision during childhood. It may be caused by strabismus, a difference in prescription or another obstruction to vision.
Can a Child Have a Strong Prescription Without It Being Obvious?
Yes. This happens particularly when one eye sees well and the other has a strong prescription.
Can Headaches Be Caused by a Vision Problem?
In some cases, yes, especially when they occur during reading or close-up tasks. However, headaches can also have other causes.
Do Screens Cause Short-Sightedness?
Short-sightedness develops for several reasons. Excessive close work and spending little time outdoors may contribute to its onset or progression.
Is It Necessary to Dilate the Pupils During the Examination?
Often, yes. The eye drops relax focusing and allow a child’s prescription to be measured more accurately.
How Often Should a Child Who Wears Glasses Have an Eye Examination?
It depends on the child’s age and condition. Many children need annual check-ups, or more frequent reviews if their prescription changes quickly or they have amblyopia or strabismus.
Does a School Vision Check Replace an Ophthalmic Examination?
No. School vision screening helps identify children at risk, but an abnormal result should be followed up with an ophthalmic examination.
Which Specialist Should Examine a Child’s Vision?
An ophthalmologist with experience in paediatric ophthalmology can assess a child’s prescription, visual development, eye alignment and overall eye health.
Detecting a Vision Problem Early Can Make All the Difference
Children are not always able to explain that they cannot see clearly. This is why observation by their family, routine paediatric check-ups and vision screening all play an essential role.
An eye examination can detect problems such as short-sightedness, long-sightedness, astigmatism, strabismus or amblyopia before they significantly affect learning or visual development.
At Centro Oftalmológico del Llano, we provide eye examinations tailored to each child’s age and ability to cooperate, clearly explaining the results and treatment options to their family.
If you have any concerns about a child’s vision, there is no need to wait until they can read or describe their symptoms before arranging an assessment.
