Related Experiment Videos
A cross-over study of the cycloplegic effects of a single topical application of cyclopentolate-phenylephrine and
Insights
A single drop of cyclopentolate and phenylephrine combination offers equivalent cycloplegic effect to 3.5 days of atropine eye drops for pediatric refraction. This simplifies clinical practice for accurate vision assessment in children.
Area of Science:
- Ophthalmology
- Pediatric Optometry
Background:
- Accurate refractive error assessment is crucial for pediatric eye care.
- Traditional atropine cycloplegia requires prolonged administration (3.5 days).
Purpose of the Study:
- To compare the cycloplegic efficacy of a single-dose combination eye drop with prolonged atropine instillation in children.
- To evaluate a potentially more convenient method for pediatric cycloplegia.
Main Methods:
- A randomized cross-over study involving 40 children aged 3-6 years.
- Comparison of static refraction via retinoscopy after topical atropine (3.5 days) versus a single instillation of 0.85% cyclopentolate + 1.5% phenylephrine.
- Single-blind assessment of cycloplegic effect.
Main Results:
- No statistically significant difference in cycloplegic effect was observed between the two methods.
- Both atropine and the combination drop effectively induced cycloplegia for refraction.
Conclusions:
- A single instillation of 0.85% cyclopentolate + 1.5% phenylephrine is a viable alternative to 3.5 days of atropine for pediatric cycloplegic refraction.
- This combination offers a simplified clinical approach for refractive error assessment in young children.
Abstract:
Static refraction in children after the topical instillation of atropine twice a day during 3.5 days was compared with the refraction after a single instillation of one drop of 0.85% cyclopentolate + 1.5% phenylephrine in a randomized cross-over study. Atropine eye drops were applied by the parents at home, while the combination drop was applied by personnel at the eye clinic. Refraction was determined by retinoscopy in 40 children (3-6 years) in a single blind manner. No statistically significant difference in cycloplegic effect was found between the 2 methods. The results imply that in clinical practice a single instillation of a combination of 0.85% cyclopentolate and 1.5% phenylephrine can be substituted for conventional "full" atropinization during 3.5 days.