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Retinoblastoma in Children: Early Signs Parents Should Not Ignore
By Dr. Gajendra Kumar Himanshu
Retinoblastoma is an uncommon type of eye cancer that develops in the retina and occurs most often in children under 5 years old. The most important sign is a white reflection in the pupil, particularly noticeable in flash photographs, which doctors call leukocoria. Crossed eyes, redness, or a swollen or painful eye can also occur. Early assessment is critical because prompt treatment can save the child's life and often the eye and vision as well.
In this blog, we discuss retinoblastoma in children, its early signs, possible causes, diagnosis and available treatments. We explain what to watch for in a child's eyes, when a symptom should be checked straight away, how doctors make a diagnosis and why early treatment can make an essential difference.
Why Early Diagnosis of Retinoblastoma Matters
Retinoblastoma is a rare cancer that begins in the retina, the light-sensitive tissue at the back of the eye. It mainly affects young children and may involve one or both eyes. Some cases are inherited, while others arise without any family history.
The condition can progress rapidly, which is why any abnormality in a child's eyes should not be dismissed as a minor vision problem. If retinoblastoma is found early, treatment can often control the cancer while preserving the eye and, in selected cases, usable vision.
What Are the Signs of Retinoblastoma in Children?
Parents may notice changes in a child's eyes before the child is able to describe a vision problem.
White Pupil or White Reflex
The classic sign of retinoblastoma, known to doctors as leukocoria, is a white pupil. In a flash photograph, one pupil may look white or abnormally bright instead of showing the normal reddish reflection.
This is sometimes seen in photographs before it becomes apparent in everyday life. However, a white pupil does not always mean retinoblastoma. Leukocoria can also be caused by cataracts, retinal abnormalities, infections and other eye conditions, so a child should be seen promptly by an eye specialist.
Crossed or Misaligned Eyes
Another important sign is strabismus, sometimes described as crossed or misaligned eyes. It can occur when a tumour affects the part of the retina that is important for clear vision.
A child with a new or persistent eye turn should have a full eye examination rather than being assumed to be going through a developmental phase.
Eye Redness, Swelling or Discomfort
Some children with retinoblastoma may have a red or painful eye, particularly if the cancer is more advanced. The eye may look puffy and, in certain situations, the eyeball may appear enlarged.
Cloudy Appearance of the Eye
In some children, the coloured part of the eye or the pupil may look hazy. This is not specific to retinoblastoma, but any unexpected change in the appearance of the eye is a reason for medical assessment.
What Causes Retinoblastoma in Children?
Retinoblastoma develops when gene changes cause the cells of the retina to grow abnormally. It occurs in both heritable and non-heritable forms. Most cases are not inherited, although some children inherit a genetic change that raises their risk of developing the condition.
A child with a family history of retinoblastoma may need earlier and more frequent eye examinations. Genetic testing can help determine whether the condition is heritable, which may also be relevant for relatives and for planning follow-up care.
When Should Parents See a Doctor?
A child with a white pupil, persistent eye misalignment, unexplained redness, swelling or pain in the eye, or any other unexpected change in the appearance of the eye needs a medical evaluation.
A white reflex in a photograph is worth acting on even if the child otherwise seems perfectly healthy. Many eye conditions can cause similar signs, so parents should not try to determine the cause from photographs alone.
Children whose parent or sibling has had retinoblastoma should have appropriate eye examinations, because the hereditary form of the disease can affect other family members.
How Is Retinoblastoma Diagnosed?
Diagnosis is usually made by an ophthalmologist who examines the inside of the eye in detail. The pupil may be dilated to allow a careful examination of the retina and optic nerve. In very young children, the examination may need to be done under anaesthesia so that the doctor can assess both eyes properly.
Doctors may also use imaging tests, such as an ocular ultrasound and other scans, to assess the size, location and extent of the tumour. The assessment also helps distinguish retinoblastoma from other causes of leukocoria.
How Is Retinoblastoma Treated?
Treatment is tailored to whether one or both eyes are involved, the size and location of the tumour, the stage of the disease and whether it has spread. Options may include chemotherapy, laser treatment, cryotherapy, radiation therapy and surgery.
The aim is to treat the cancer while saving the child's life and, wherever possible, the affected eye and useful vision. Children with retinoblastoma are usually cared for by a team of specialists in paediatric ophthalmology and oncology.
Can Children Recover From Retinoblastoma?
Yes. Retinoblastoma can often be treated successfully, particularly when it is detected early. If the cancer is diagnosed at a later stage, the outcomes can be less favourable.
Follow-up is important because children with inherited retinoblastoma may have a higher risk of developing other cancers later in life. Genetic counselling and long-term monitoring may therefore be part of the care provided to some families.
For more information regarding multidisciplinary cancer care and cancer treatment, visit the National Cancer Institute.
Consult Today
If your child has a white pupil, a crossed eye, persistent redness, swelling or any other unusual change in the eye, an early assessment by a qualified eye specialist can help determine the cause. At Oncare Cancer Hospital, families can discuss any worrying eye symptoms with the specialist team and receive guidance on diagnosis, treatment and further examination if required.
Disclaimer
This blog is for educational purposes only and does not replace professional medical advice, diagnosis or treatment. Any persistent change in a child's eye requires individual evaluation to determine its cause. Consult a qualified doctor for personalized advice.
Frequently Asked Questions
The most common presenting sign is leukocoria, or a white pupil, which may be particularly noticeable in flash photographs. Misaligned or crossed eyes are another common presenting sign.
No. A white pupil can be caused by several conditions, including cataract, retinal problems and other eye diseases. Leukocoria should still be investigated promptly, because retinoblastoma is one of the possible causes.
Retinoblastoma generally occurs in young children, most often before the age of 5. Children with the inherited form may develop it at an earlier age and may have tumours in both eyes.
Yes. Most children can be treated effectively, especially when retinoblastoma is diagnosed early. Depending on the individual case, treatment options can include chemotherapy, laser therapy, cryotherapy, radiation or surgery.
Written and Verified by:
Dr. Gajendra Kumar Himanshu Exp: 10 Yr
Medical Officer
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