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Status of cyclopentolate as a cycloplegic in children: a comparison with atropine and homatropine
A K Khurana1, B K Ahluwalia, C Rajan
1Department of Ophthalmology, Medical College, Rohtak, India.
Insights
Cyclopentolate, homatropine, and atropine were compared for their cycloplegic effects. Cyclopentolate demonstrated a favorable balance of effective cycloplegia and minimal residual accommodation, making it suitable for routine use in children.
Area of Science:
- Ophthalmology
- Pharmacology
Background:
- Accurate refractive error assessment in children often requires cycloplegia to relax accommodation.
- Different cycloplegic agents vary in efficacy and duration of action.
Purpose of the Study:
- To compare the cycloplegic effects of cyclopentolate, homatropine, and atropine.
- To evaluate residual accommodation and retinoscopy findings after administration of these agents.
Main Methods:
- A comparative study involving retinoscopy and measurement of residual accommodation.
- Assessment of cycloplegic effects of cyclopentolate, homatropine, and atropine in the same individuals.
Main Results:
- Mean residual accommodation: cyclopentolate (1.48 D), homatropine (2.32 D), atropine (1.10 D).
- Mean retinoscopy differences: cyclopentolate vs. homatropine (0.46 D), homatropine vs. atropine (0.71 D), atropine vs. cyclopentolate (0.26 D).
- A tonus allowance of +0.75 D is suggested for cyclopentolate.
Conclusions:
- Cyclopentolate offers effective cycloplegia with manageable residual accommodation.
- Cyclopentolate is a viable option for routine cycloplegic use in pediatric eye examinations.
Abstract:
We compared the cycloplegic effects of cyclopentolate, homatropine and atropine by the retinoscopy findings and residual accommodation left following their use in the same individual. The mean residual accommodation measured after the use of cyclopentolate, homatropine and atropine was 1.48 +/- 0.33 D, 2.32 +/- 0.37 D and 1.10 D +/- 0.28 D, respectively, and the mean difference in retinoscopy readings between cyclopentolate and homatropine, homatropine and atropine, and atropine and cyclopentolate was 0.46 +/- 0.21, 0.71 +/- 0.23 and 0.26 +/- 0.14, respectively. We further observed that a tonus allowance of about +0.75 D would suffice for cyclopentolate. The merits for recommending cyclopentolate as a routine cycloplegic in children are discussed.