Comparison of the Effect of Cycloplegia on Astigmatism Measurements in a Pediatric Amblyopic Population: A
Insights
Cycloplegia does not significantly alter astigmatism measurements in children with amblyopia. Non-cycloplegic autorefraction is a safe method for assessing astigmatism in these pediatric patients.
Area of Science:
- Ophthalmology
- Pediatric Optometry
- Refractive Error Assessment
Background:
- Amblyopia, or
Purpose of the Study:
- To evaluate the impact of cycloplegia on astigmatism measurements in pediatric patients diagnosed with amblyopia.
- To determine if cycloplegic refraction is necessary for accurate astigmatism assessment in this population.
Main Methods:
- Prospective comparative clinical study involving pediatric patients aged 4-17 years.
- Autorefractor measurements of refractive error (sphere, cylinder, axis, spherical equivalent) were taken before and after cycloplegia.
- Patients were categorized based on refractive error (myopia/hyperopia) and presence of amblyopia.
Main Results:
- No statistically significant differences were observed in the axis (P = .28) or power (P = .99) of astigmatism before and after cycloplegia in amblyopic patients.
- These findings suggest cycloplegia does not substantially change astigmatism parameters in this group.
Conclusions:
- Non-cycloplegic autorefraction appears to be a reliable and safe method for refining astigmatism power and axis in pediatric patients with amblyopia.
- This simplifies the examination process for children with amblyopia, potentially reducing chair time and improving patient comfort.
Purpose:
To study the effect of cycloplegia on astigmatism measurements in pediatric patients with amblyopia.
Methods:
This was a prospective comparative clinical study. Participants 4 to 17 years old were recruited from the patient population at the Arkansas Children's Hospital eye clinic after informed consent was obtained. Autorefractor measurements were used to obtain values of refractive error in amblyopic and non-amblyopic patients before and after cycloplegia. The groups were subdivided into myopia and hyperopia and with and without underlying amblyopia. The refractive error was expressed as sphere, cylinder, axis of astigmatism, and spherical equivalent. The treatment effect was summarized as the mean difference (95% confidence interval) for each outcome.
Results:
No statistically significant difference was found on the axis and power of astigmatism before and after cycloplegia in the patients with amblyopia (P = .28 and .99, respectively).
Conclusions:
Non-cycloplegic autorefraction measurements may be considered safe for refining astigmatism power and axis in pediatric patients with amblyopia. [J Pediatr Ophthalmol Strabismus. 2018;55(5):293-298.].
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