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Change in ocular refraction after tropicamide cycloplegia in preschool children

Paweł Nawrot1, Anna Przekoracka-Krawczyk, Katarzyna Perz

  • 1Laboratory of Vision Science and Optometry, Faculty of Physics, Adam Mickiewicz University in Poznań, Poland.

Klinika Oczna
|March 7, 2013
PubMed

Insights

One percent tropicamide effectively induces cycloplegia in preschool children, aiding in refractive error diagnosis. It causes a significant increase in the spherical component of refractive error.

Area of Science:

  • Ophthalmology
  • Pediatric Optometry

Background:

  • Accurate refractive error diagnosis in preschool children is crucial for timely intervention.
  • Cycloplegic agents are essential for overcoming accommodation during refraction in young children.

Purpose of the Study:

  • To evaluate ocular refraction changes following 1% tropicamide administration.
  • To assess the efficacy of 1% tropicamide in diagnosing refractive errors in preschool-aged children.

Main Methods:

  • A study involving 116 preschool children (ages 5-6 years).
  • Objective refraction measurement using an autorefractor before and after cycloplegia induced by 1% tropicamide.
  • Tropicamide was administered as two drops with a 5-minute interval.

Main Results:

  • A significant increase of +0.78 D in the spherical component of refractive error was observed post-tropicamide instillation.
  • The cylindrical component (power and axis) of the refractive error remained unchanged.
  • Mean spherical component was +1.55 D, mean cylindrical component was -0.51 D, with an axis of 102 degrees.

Conclusions:

  • 1% Tropicamide is an effective cycloplegic agent for refractive error diagnosis in preschool children.
  • Exclusions for its use include children with high hyperopia, anisometropia, or strabismus.
Abstract

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