Eye specialists have warned that delayed treatment of cataracts in children can lead to irreversible vision loss, stressing the importance of early detection and prompt medical care.
Cataract is an eye condition in which the natural lens becomes cloudy, preventing light from passing clearly into the eye and resulting in blurred or impaired vision. While it is commonly linked to ageing, it can also occur in infants and young children.
Health professionals say childhood cataracts remain a significant but often overlooked cause of visual impairment, particularly in low- and middle-income countries where late hospital presentation is common.
Causes in Children Go Beyond Ageing
Medical experts explain that cataracts in children may be present at birth or develop later in life. Congenital cases are often linked to infections during pregnancy such as rubella, chickenpox, hepatitis, and cytomegalovirus, which can affect fetal eye development.
Genetic factors also contribute, with certain inherited conditions and mutations affecting the clarity of the eye’s lens.
Other risk factors include maternal health conditions such as diabetes, the use of certain medications during pregnancy, birth complications, infections, eye injuries, and inflammatory diseases. In some cases, physical trauma during childhood accidents can also trigger cataract formation.
Growing Concern Over Late Diagnosis
Specialists note that many cases are only detected when the condition has already progressed, reducing the chances of full visual recovery even after surgery. This is particularly dangerous during early childhood, when vision development is still critical.
Public health data indicate that childhood blindness contributes significantly to the overall burden of visual impairment in Nigeria and other developing countries, with a large proportion of cases considered preventable if detected early.
Shortages of specialised paediatric eye care services and low awareness among parents further worsen outcomes.
Warning Signs in Children
Health experts advise parents and caregivers to watch out for early indicators of vision problems in children, including difficulty focusing, moving too close to screens, poor eye contact, inability to track objects, or abnormal eye appearance such as a whitish glow in the pupil.
Because children rarely complain about vision loss, behavioural changes are often the earliest clue that something is wrong.
Impact on Brain and Vision Development
Untreated cataracts in children can interfere with the normal development of vision and the connection between the eye and the brain. This can result in long-term complications such as amblyopia, where one eye becomes functionally weaker, or strabismus, where both eyes become misaligned.
In severe cases, children may also develop involuntary eye movements that further impair visual stability.
Once these complications set in, vision loss may become permanent even after surgical correction of the cataract.
Screen Exposure and Self-Medication Concerns
Health professionals also raise concerns about excessive screen exposure among very young children, noting that prolonged use of phones and tablets may contribute to eye strain and developmental issues.
Self-medication is another growing concern, as inappropriate use of eye drops or unprescribed treatments can worsen eye conditions or delay proper diagnosis.
Importance of Early Eye Care
Experts emphasize the need for routine eye screening for children, early hospital visits when symptoms are noticed, and proper nutritional support to promote healthy eye development.
They also stress that the use of corrective glasses in children is normal and often necessary for refractive errors such as short-sightedness or long-sightedness. Glasses are not harmful and help support proper visual development.
Conclusion
Medical experts maintain that childhood cataracts are treatable when detected early, but delayed intervention significantly increases the risk of permanent blindness. They urge parents to prioritise early eye checks and avoid ignoring subtle signs of vision problems in children.
