Paediatric Ophthalmology and adult strabismus
A child’s eye is not a miniature adult eye, it is a whole new visual system, which is constantly changing with the growth of the child.
Absent Red Reflex - Needs early evaluation by an ophthalmologist
By 5 months depth perception would have developed
Needs urgent examination by an ophthalmologist
The inside of the eye has a muscle called the ciliary muscle which helps in focussing (we could call it the “focussing muscle”) near and far objects.
The tone of this muscle is very strong in children and the contraction of this muscle often overcomes the need for glasses in children.
In the early years parents must look for any delay in these eye developmental milestones, or any misalignment of the eyes, if there is a doubt an ophthalmologist’s opinion must be sought.
Normal and healthy Red Reflex
Children born 3 weeks or earlier (preterm babies) from the expected date of delivery must have an eye evaluation in the first few weeks after birth.
Low birth weight babies and children on prolonged oxygen therapy after birth will need eye evaluation early in life. In most such instances the neonatologist/paediatrician will advise the timing of the eye evaluation. Parents must check with the paediatrician if an early eye evaluation is required.
Any white reflex in the eyes needs urgent evaluation.
Children who constantly see with their face turned or neck tilted to one side must be seen by an ophthalmologist.
Sometimes these postures becomes a mannerism for the child, constant counselling by the parents will help them correct themselves, if they still do not, an eye evaluation is warranted.
Excess watering from one or both eyes in a child needs an ophthalmologist evaluation. In the first few months of life, some children have a block of the nasolacrimal duct ( the tube that drains the tears from the eyes to the nose and the throat).
Normal and healthy Red Reflex
Any redness in the eyes needs ophthalmic examination.
Some children develop an allergic redness in their eyes resulting in redness and itchiness prompting the child to constantly rub the eyes.
Children should be counselled to avoid rubbing as it can induce astigmatism. This condition needs thorough evaluation and treatment.
Upon examination by an ophthalmologist if a child is prescribed glasses, he/ she must wear the glasses or else visual development will not happen. The glasses must be worn at all times of the day.
Visual pathway development is completed by the age of 9 years much before puberty and physical development. Not wearing glasses if and when required results in subnormal vision which cannot be corrected in adulthood. It results in a condition called amblyopia or lazy eye. Children with high cylindrical power or high plus power are particularly prone to become amblyopic, if not compliant with glasses.