Which Prescription is Better for My Child's Vision? - Ophthalmology

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Which is better?


The child is 6 and a half years old.
Due to blurred vision, they visited an ophthalmologist.
The doctor performed a dilated refraction and diagnosed the child with astigmatism leading to amblyopia in the right eye.
The prescription given was: right eye -2.50 cylinder +4.25 axis 105, and left eye -1.25 cylinder +2.75 axis 075.
The doctor placed a lens in front of the child to track the refractive power, without using a phoropter to ask the child which was clearer.
At the optical store, after trying on glasses, the child achieved 20/30 vision in the left eye and 20/40 in the right eye.
The optician rechecked the prescription, which resulted in right eye sphere -2.25 cylinder +3.25 axis 95 and left eye -1.75 cylinder +3.00 axis 80.
With this prescription, the child could see 20/30 in the right eye and 20/25 in the left eye, which was clearer.
This time, the optician used a phoropter and asked the child which was clearer, but did not perform dilation.
When the parents asked the ophthalmologist if they could use the new prescription, the doctor refused, stating that the new prescription without dilation was inaccurate.
My question is which prescription is better for the child.
The optician mentioned that the child only has mild amblyopia.
The child is currently in the United States.

Wàn fēn huǒ jí de māmā, 30~39 year old female. Ask Date: 2016/02/05

Dr. Gao Pilin reply Ophthalmology


Hello: It is better to prescribe glasses for children based on the degree measured after dilation.
Using the degree obtained after dilation to prescribe glasses is the fundamental principle.
In Taiwan, the ophthalmology department at Puzi Hospital is open Monday to Friday from 8:00 AM to 12:00 PM and Wednesday afternoons from 1:00 PM to 4:30 PM.
We hope to have the opportunity to serve you.
Gao Pilin

Reply Date: 2016/02/05

More Info


When it comes to determining the best prescription for your child's vision, especially in the context of amblyopia (commonly referred to as "lazy eye") and astigmatism, there are several factors to consider. Your child's situation, as described, involves a diagnosis of amblyopia in the right eye due to astigmatism, and the prescriptions provided by both the eye doctor and the optician differ.


Understanding the Prescriptions
1. Initial Prescription from the Eye Doctor:
- Right Eye: -2.50 cylinder +4.25 axis 105
- Left Eye: -1.25 cylinder +2.75 axis 075
2. Prescription from the Optician:
- Right Eye: -2.25 sphere +3.25 cylinder +95
- Left Eye: -1.75 sphere +3.00 cylinder +80

Evaluating the Prescriptions
The initial prescription from the eye doctor is likely based on a comprehensive examination, including dilation (using a cycloplegic agent) to get a more accurate measurement of refractive error. This method is crucial, especially in children, as it helps to prevent the eye's natural focusing ability from skewing the results. The optician's prescription, while it may provide clearer vision in the short term, was obtained without dilation, which can lead to inaccuracies, particularly in children who may not be able to communicate their visual experiences effectively.


Importance of Dilation
Dilation is essential in pediatric eye exams because it allows for a more accurate assessment of the refractive error. Without dilation, the eye's natural ability to accommodate (focus) can mask the true level of refractive error, leading to a prescription that may not fully correct the vision issues. This is particularly relevant in cases of amblyopia, where precise correction is necessary to promote visual development in the affected eye.


Recommendations
1. Stick with the Eye Doctor's Prescription: Given that the eye doctor performed a comprehensive exam with dilation, their prescription is likely more accurate for your child's needs. The goal is to provide the best possible correction to help improve the vision in the weaker eye.

2. Consider the Optician's Findings: While the optician's prescription may provide clearer vision in the short term, it is essential to weigh this against the potential for long-term visual development. If the optician's prescription is significantly different, it may be worth discussing further with the eye doctor to understand the implications.

3. Follow-Up: Regular follow-ups with the eye doctor are crucial, especially for children with amblyopia. The doctor may recommend patching the stronger eye to encourage the weaker eye to develop better vision. This treatment plan should be monitored closely to ensure that your child is progressing.

4. Communication with Eye Care Providers: If there are concerns about the differences in prescriptions, it is advisable to have a discussion with both the eye doctor and the optician. They can provide insights into why the prescriptions differ and help you make an informed decision.


Conclusion
In summary, while both prescriptions have their merits, the one provided by the eye doctor, which was obtained through a comprehensive examination with dilation, is likely the better option for your child's vision. It is essential to prioritize accurate measurements, especially in cases of amblyopia, to ensure optimal visual development. Regular follow-ups and open communication with your eye care providers will be key in managing your child's vision effectively.

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